A few Programs, that are tested with compilers of respective IDEs s Bloodshed-DevC++, Visual Studio 2008, Qt 4.2. These are running successfully within console window of windows platform. So just enjoy coding. Programs in C of College days.
1. 2012
Saket Kumar Pathak
Software Developer
3D Graphics
[Programming in C of College days ]
Programs are tested with compiler and respective IDEs Bloodshed-DevC++, Visual Studio
2008, Qt 4.2. These are running successfully with console in windows platform. So just
enjoy coding. For Visual Studio 2008 and Qt 4.2, please notice the note at the end.
2. Programming in C of College days
1. WAP to convert
a. Binary to Decimal
b. Decimal to Binary
Program:
Binary to Decimal:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define DATA_SIZE 32
char* rev_data_seq(char* chp_data_seq);
void bin_to_dec()
{
printf("WAP to convert :nt-> Binary to Decimal");
printf("nLimitation: nt-> Fractional Numbers will not
considered. nt-> Binary format is limited to 32 bit.
nt-> Input will considered in Unsigned format.");
printf("nnn");
int i_res, i_num, i_count;
char ch_digit;
char* chp_data_seq = (char*)malloc(sizeof(char) *
DATA_SIZE);
i_res = i_num = i_count = 0;
printf("Please Enter any number (Binary in base 2): ");
while((ch_digit = getchar()) != 'n')
{
if((ch_digit == '0')||(ch_digit == '1'))
{
*(chp_data_seq + i_count) = ch_digit;
i_count++;
}
else if(i_count > 32)
{
i_res = 0;
printf("nInvalid Input.n");
break;
}
else
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4. Programming in C of College days
int main()
{
dec_to_bin();
getch();
return 0;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
Decimal to Binary:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define DATA_SIZE 32
void dec_to_bin()
{
printf("WAP to convert :nt-> Decimal to Binary");
printf("nLimitation: nt-> Fractional Numbers will not
considered. nt-> Binary format is limited to 32 bit.
nt-> Generated result will be in Unsigned format.");
printf("nnn");
int i_num;
printf("Please Enter any number (Decimal in base 10): ");
scanf("%d", &i_num);
int* i_res = (int*)malloc(sizeof(int) * DATA_SIZE);
int i_count = 0;
while(i_count < DATA_SIZE)
{
*(i_res + i_count) = 0;
i_count++;
}
printf("n");
i_count = (DATA_SIZE-1);
int i_quotent, i_remainder;
do
{
i_quotent = i_num / 2;
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5. Programming in C of College days
i_remainder = i_num % 2;
i_num = i_quotent;
*(i_res + i_count) = i_remainder;
i_count--;
}
while(i_quotent > 0);
printf("nResultant: ");
i_count = 0;
while(i_count < DATA_SIZE)
{
printf("%d", *(i_res + i_count));
i_count++;
}
}
int main()
{
dec_to_bin();
getch();
return 0;
}
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6. Programming in C of College days
2. WAP to generate prime numbers within a given range.
Program:
#include <stdio.h>
#include <stdbool.h>
int i_lr, i_hr, i_count_prime;
int *i_collector;
bool b_check;
void set_argument()
{
printf("Please Enter Number to for lower limit of Range: ");
scanf("%d", &i_lr);
printf("Please Enter Number to for Upper limit of Range: ");
scanf("%d", &i_hr);
printf("nnn");
}
void find_numbers()
{
printf(" Given Range to find prime numbers is %d - %d.n",
i_lr, i_hr);
i_collector = (int*)malloc(sizeof(int) * 1024);
*i_collector = 1;
{
int i_count;
for(i_count = i_lr; i_count <= i_hr; ++i_count)
{
if(i_count > 3)
{
int i_loopcount;
for(i_loopcount = 2; i_loopcount <= (i_count/2); ++i_loopcount)
{
if((i_count % i_loopcount) == 0)
{
b_check = true;
break;
}
else
b_check = false;
}
if(!b_check)
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7. Programming in C of College days
{
*i_collector = i_count;
i_collector+=sizeof(int);
i_count_prime++;
}
}
else
{
*i_collector = i_count;
i_collector+=sizeof(int);
printf("n The Number 2 and 3 are prime.");
}
}
}
printf("nnn");
}
void show_result()
{
i_collector-=sizeof(int);
printf("Prime Number So obtained: n");
printf("Index t PrimeNumbern");
int i_idx = 1;
while(i_count_prime > 0)
{
printf(" %dt %dn", i_idx, *i_collector);
i_collector = i_collector - sizeof(int);
--i_count_prime;
++i_idx;
}
}
int main()
{
printf("WAP to Find Prime numbers with a given range.");
printf("nnn");
set_argument();
find_numbers();
show_result();
printf("nnn");
system("pause");
return 0;
}
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8. Programming in C of College days
3. WAP to generate following patterns, if line =5
(a)
1
0 1
1 0 1
0 1 0 1
1 0 1 0 1
(b)
*
***
* ****
*******
*********
Program:
(a)
#include <stdio.h>
#include <stdbool.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t1n");
printf("t01n");
printf("t101n");
printf("t0101n");
printf("t10101n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
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9. Programming in C of College days
void draw_pattern()
{
int container[2] = {1,0};
unsigned int ui_row, ui_col;
for(ui_row = 1; ui_row <= (unsigned int)i_number; ++ui_row)
{
printf("nt");
int count;
bool b_flag = true;
for(ui_col = 1; ui_col <= ui_row; ++ui_col)
{
if(b_flag)
{
if((ui_row%2)==0)
count = 1;
else
count = 0;
b_flag = false;
}
printf("%d", container[count]);
if(count==1)
count = 0;
else
count = 1;
}
}
}
int main()
{
set_argument();
draw_pattern();
getch();
return 0;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
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10. Programming in C of College days
(b)
#include <stdio.h>
#include <stdbool.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t *n");
printf("t ***n");
printf("t *****n");
printf("t *******n");
printf("t*********n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_blank, ui_col;
for(ui_row = 0; ui_row <= (unsigned int)i_number; ++ui_row)
{
printf("nt");
for(ui_blank = 1; ui_blank <= (i_number-ui_row);
++ui_blank)
printf(" ");
for(ui_col = 1; ui_col <= (2*ui_row + 1); ++ui_col)
printf("*");
}
}
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11. Programming in C of College days
int main()
{
set_argument();
draw_pattern();
getch();
return 0;
}
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12. Programming in C of College days
4. WAP to generate recursive Fibonacci series.
Program:
#include <stdio.h>
#include <stdbool.h>
void create_fibonacci(bool flag, unsigned int i_count);
int main()
{
printf("WAP to generate Fibonacci series using
recursion.n");
printf("nnn");
int i_term, i_rec;
unsigned int ui_count;
printf("Enter a term to create fibonacci: ");
scanf("%d", &i_term);
printf("Fibonacci: 0 1");
create_fibonacci(true, (i_term-2));
system("pause");
return 0;
}
void create_fibonacci(bool flag, unsigned int i_count)
{
static int i_num_1, i_num_2, i_num_3;
if (flag)
{
i_num_1 = 0;
i_num_2 = 1;
flag = false;
}
if (i_count > 0)
{
i_num_3 = i_num_1 + i_num_2;
printf(" %d", i_num_3);
i_num_1 = i_num_2;
i_num_2 = i_num_3;
create_fibonacci(false, --i_count);
}
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printf("n");
}
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14. Programming in C of College days
5. WAP to perform binary search by using
a. Recursion.
b. Non recursion.
Program:
a. Recursion
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
bool check_item_order(int* i_storage)
{
//Function to check the Item - List is in Sorted order.
return true;
}
void recursive_bin_search(int* i_storage, int i_srch_item, int
i_low, int i_mid, int i_hi)
{
if(i_low < i_hi)
{
if(i_storage[i_mid] == i_srch_item)
{
printf("Item (%d) is found at position: %d", i_srch_item,
i_mid);
}
else if(i_storage[i_mid] > i_srch_item)
{
i_hi = i_mid;
i_mid = (i_low + i_hi)/2;
recursive_bin_search(i_storage, i_srch_item, i_low, i_mid,
i_hi);
}
else if(i_storage[i_mid] < i_srch_item)
{
i_low = i_mid;
i_mid = (i_low + i_hi)/2;
recursive_bin_search(i_storage, i_srch_item, i_low, i_mid,
i_hi);
}
}
}
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15. Programming in C of College days
void recursive_binary_search(int* i_storage, int i_num_item)
{
bool b_check = check_item_order(i_storage);
printf("Your Storage Items are: nt");
int i_loop_count;
for(i_loop_count = 0; i_loop_count < i_num_item;
++i_loop_count)
{
printf("%d, ", i_storage[i_loop_count]);
}
printf("nnn");
int i_srch_item;
printf("Please Enter the item (number) to search: ");
scanf("%d", &i_srch_item);
printf("nnn");
int i_low = 0;
int i_hi = i_num_item;
int i_mid = (i_low + i_hi)/2;
if(b_check)
recursive_bin_search(i_storage, i_srch_item, i_low,
i_mid, i_hi);
else
printf("nItems are not in Order.n");
}
void binary_search(void)
{
printf("WAP for Binary - Search.");
printf("nLimitation: nt-> Items are restrickted with integer
number.nt-> Starting index of storage is 0.");
printf("nnn");
int i_storage[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
recursive_binary_search(i_storage,
(sizeof(i_storage)/sizeof(int)));
}
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16. Programming in C of College days
int main()
{
binary_search();
printf("nnn");
getch();
return 0;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
b. Non recursion
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
bool check_item_order(int* i_storage)
{
return true;
}
void iterative_binary_search(int* i_storage, int i_num_item)
{
bool b_check = check_item_order(i_storage);
printf("Your Storage Items are: nt");
int i_loop_count;
for(i_loop_count = 0; i_loop_count < i_num_item;
++i_loop_count)
{
printf("%d, ", i_storage[i_loop_count]);
}
printf("nnn");
int i_srch_item;
printf("Please Enter the item (number) to search: ");
scanf("%d", &i_srch_item);
printf("nnn");
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printf("Result: ");
int i_low = 0;
int i_hi = i_num_item;
int i_mid = (i_low + i_hi)/2;
if (b_check)
{
while(i_low < i_hi)
{
if(i_storage[i_mid] == i_srch_item)
{
printf("Item (%d) is found at position: %d", i_srch_item,
i_mid);
break;
}
else if(i_storage[i_mid] > i_srch_item)
{
i_hi = i_mid;
i_mid = (i_low + i_hi)/2;
}
else if(i_storage[i_mid] < i_srch_item)
{
i_low = i_mid;
i_mid = (i_low + i_hi)/2;
}
}
}
}
void binary_search(void)
{
printf("WAP for Binary - Search.");
printf("nLimitation: nt-> Items are restrickted with integer
number.nt-> Starting index of storage is 0.");
printf("nnn");
int i_storage[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
iterative_binary_search(i_storage,
(sizeof(i_storage)/sizeof(int)));
}
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18. Programming in C of College days
int main()
{
binary_search();
printf("nnn");
getch();
return 0;
}
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19. Programming in C of College days
6. WAP for Tower of Hanoi. Also draw the recursive tree for n=4 disks.
Program:
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <math.h>
void generate_moves_toh(int i_disk_num, char from_peg, char
to_peg, char aux_peg)
{
/* If only 1 disk, make the move and return */
if(i_disk_num == 1)
{
printf("nMove disk 1 from peg %c to peg %c",
from_peg, to_peg);
return;
}
/* Move top n-1 disks from A to B, using C as auxiliary */
generate_moves_toh(i_disk_num-1, from_peg, aux_peg,
to_peg);
printf("nMove disk %d from peg %c to peg %c", i_disk_num,
from_peg, to_peg);
/* Move n-1 disks from B to C using A as auxiliary */
generate_moves_toh(i_disk_num-1, aux_peg, to_peg,
from_peg);
}
void gen_tow_of_honoi()
{
printf("WAP to display the steps required in solving 'Tower
of Hanoi' for 'n' number of disks.");
printf("nLimitation: nt-> Disks are represented as
integral numbers in assending order.");
printf("nnn");
int i_num_disk;
printf("Enter the number of disks : ");
scanf("%d",&i_num_disk);
printf("The Tower of Hanoi involves the moves :nn");
generate_moves_toh(i_num_disk, 'A', 'C', 'B');
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20. Programming in C of College days
}
int main()
{
gen_tow_of_honoi();
printf("nnn");
getch();
return 0;
}
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21. Programming in C of College days
7. WAP to generate Pascal triangle viz. if line =5
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
Program:
#include <stdio.h>
#include <stdbool.h>
int main()
{
printf("Pascal's Seriesn");
printf("nnn");
int i_num_row;
printf("Enter number of rows: ");
scanf("%d", &i_num_row);
int arr[6], arr_temp[6];
static bool flag = true;
int i_row_count, i_col_count, i_count, i_counter;
for (i_row_count = 1; i_row_count <= i_num_row;
++i_row_count)
{
for (i_col_count = 1; i_col_count <= i_num_row;
++i_col_count)
{
for (i_count = 0; i_count <= i_row_count; ++i_count)
{
if (flag)
{
arr[i_count] = i_count;
if (arr[i_count] != 0)
printf("t%d", arr[i_count]);
}
else if(i_count > 0)
{
arr_temp[i_count] = arr[i_count-1] +
arr[i_count];
printf("t%d", arr_temp[i_count]);
}
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else
{
arr_temp[i_count] = i_count;
}
}
for (i_counter = i_count; i_counter <= (i_num_row+1);
++i_counter)
{
if (flag)
{
arr[i_counter] = 0;
}
else if(i_counter > 0)
{
arr_temp[i_counter] = arr[i_counter-1] +
arr[i_counter];
}
}
flag = false;
break;
}
if (i_row_count > 1)
for (i_count = 1; i_count <= i_num_row; ++i_count)
{
arr[i_count] = arr_temp[i_count];
}
printf("n");
}
system("pause");
return 0;
}
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8. Write following programs by using passing array to function :
a) Bubble sort
b) Insertion sort
c) Selection sort
Program:
a) Bubble sort
#include <stdio.h>
int* bubble_sort(int i_store[], int i_size);
int* get_elem(int i_size);
void disp_elem(int i_store[], int i_size);
int main()
{
printf("WAP of Bubble sort by using array.");
printf("nnn");
int i_store_size;
printf("Enter the total number of items to store: ");
scanf("%d", &i_store_size);
int* ip_store = get_elem(i_store_size);
ip_store = bubble_sort(ip_store, i_store_size);
disp_elem(ip_store, i_store_size);
printf("nnn");
system("pause");
return 0;
}
int* get_elem(int i_size)
{
int* ip_store = malloc(sizeof(int) * i_size);
int i_count = 0;
while (i_size)
{
printf("nEnter item for index - %d : ", i_count);
scanf("%d", (ip_store+i_count));
i_count++;
i_size--;
}
return ip_store;
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}
int* bubble_sort(int i_store[], int i_size)
{
int i_temp;
int i_count_0, i_count_1;
for (i_count_0 = (i_size - 1); i_count_0 > 0; --i_count_0)
{
for (i_count_1 = 1; i_count_1 <= i_count_0;
++i_count_1)
{
if (i_store[i_count_1 - 1] > i_store[i_count_1])
{
i_temp = i_store[i_count_1 - 1];
i_store[i_count_1 - 1] = i_store[i_count_1];
i_store[i_count_1] = i_temp;
}
}
}
return i_store;
}
void disp_elem(int i_store[], int i_size)
{
printf("nDisplaying Elements of store: n");
int i_ndx = 0;
while (i_size)
{
printf("nIndex(%d) : %d", i_ndx, i_store[i_ndx]);
i_ndx++;
i_size--;
}
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
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Insertion sort
#include <stdio.h>
int* insertion_sort(int i_store[], int i_size);
int* get_elem(int i_size);
void disp_elem(int i_store[], int i_size);
int main()
{
printf("WAP of Insertion sort by using array.");
printf("nnn");
int i_store_size;
printf("Enter the total number of items to store: ");
scanf("%d", &i_store_size);
int* ip_store = get_elem(i_store_size);
ip_store = insertion_sort(ip_store, i_store_size);
disp_elem(ip_store, i_store_size);
printf("nnn");
system("pause");
return 0;
}
int* get_elem(int i_size)
{
int* ip_store = malloc(sizeof(int) * i_size);
int i_count = 0;
while (i_size)
{
printf("nEnter item for index - %d : ", i_count);
scanf("%d", (ip_store+i_count));
i_count++;
i_size--;
}
return ip_store;
}
int* insertion_sort(int i_store[], int i_size)
{
int i_temp;
int i_count_0, i_count_1, i_count_2;
for (i_count_0 = 1; i_count_0 <= (i_size-1); ++i_count_0)
{
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for (i_count_1 = 0; i_count_1 < i_count_0; ++i_count_1)
{
if (i_store[i_count_1] > i_store[i_count_0])
{
i_temp = i_store[i_count_1] ;
i_store[i_count_1] = i_store[i_count_0] ;
for (i_count_2 = i_count_0; i_count_2 >
i_count_1; i_count_2--)
i_store[i_count_2] = i_store[i_count_2
- 1] ;
i_store[i_count_2 + 1] = i_temp ;
}
}
}
return i_store;
}
void disp_elem(int i_store[], int i_size)
{
printf("nDisplaying Elements of store: n");
int i_ndx = 0;
while (i_size)
{
printf("nIndex(%d) : %d", i_ndx, i_store[i_ndx]);
i_ndx++;
i_size--;
}
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
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27. Programming in C of College days
Selection sort
#include <stdio.h>
int* selection_sort(int i_store[], int i_size);
int* get_elem(int i_size);
void disp_elem(int i_store[], int i_size);
int main()
{
printf("WAP of Selection sort by using array.");
printf("nnn");
int i_store_size;
printf("Enter the total number of items to store: ");
scanf("%d", &i_store_size);
int* ip_store = get_elem(i_store_size);
ip_store = selection_sort(ip_store, i_store_size);
disp_elem(ip_store, i_store_size);
printf("nnn");
system("pause");
return 0;
}
int* get_elem(int i_size)
{
int* ip_store = malloc(sizeof(int) * i_size);
int i_count = 0;
while (i_size)
{
printf("nEnter item for index - %d : ", i_count);
scanf("%d", (ip_store+i_count));
i_count++;
i_size--;
}
return ip_store;
}
int* selection_sort(int i_store[], int i_size)
{
int i_temp;
int i_count_0, i_count_1;
for (i_count_0 = 0; i_count_0 < (i_size-1); ++i_count_0)
{
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for (i_count_1 = (i_count_0+1); i_count_1 < i_size;
++i_count_1)
{
if (i_store[i_count_0] > i_store[i_count_1])
{
i_temp = i_store[i_count_0];
i_store[i_count_0] = i_store[i_count_1];
i_store[i_count_1] = i_temp;
}
}
}
return i_store;
}
void disp_elem(int i_store[], int i_size)
{
printf("nDisplaying Elements of store: n");
int i_ndx = 0;
while (i_size)
{
printf("nIndex(%d) : %d", i_ndx, i_store[i_ndx]);
i_ndx++;
i_size--;
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 28
29. Programming in C of College days
9. WAP for matrix multiplication of given order.
Program:
#include <stdio.h>
#include <stdbool.h>
void get_matrices(void);
void mult_matrices(void);
void disp_matrix(void);
int **mat_1;
int **mat_2;
int **res_mat;
int i_m1_row, i_m1_col;
int i_m2_row, i_m2_col;
int main()
{
printf("WAP for matrix multiplication of given order.n");
printf("nnn");
get_matrices();
mult_matrices();
disp_matrix();
system("pause");
return 0;
}
void get_matrices()
{
printf("Enter number of rows for Matrix-1: ");
scanf("%d", &i_m1_row);
printf("Enter number of columbs for Matrix-1: ");
scanf("%d", &i_m1_col);
mat_1 = malloc(sizeof(int) * i_m1_row);
int i_row_count, i_col_count;
printf("Enter elements for Matrix-1:n");
for (i_row_count = 0; i_row_count < i_m1_row;
++i_row_count)
{
*(mat_1+i_row_count) = malloc(sizeof(int) * i_m1_col);
M.Tech – CSE – Weekend (2012 – 2015) Page 29
30. Programming in C of College days
for (i_col_count = 0; i_col_count < i_m1_col;
++i_col_count)
{
printf("Element[%d][%d]: ", i_row_count,
i_col_count);
scanf("%d",&(*(*(mat_1+i_row_count)+i_col_count)));
*(mat_1+i_row_count)+i_col_count;
}
}
printf("nnn");
printf("Enter number of rows for Matrix-2: ");
scanf("%d", &i_m2_row);
printf("Enter number of columbs for Matrix-2: ");
scanf("%d", &i_m2_col);
mat_2 = malloc(sizeof(int) * i_m2_row);
printf("Enter elements for Matrix-2:n");
for (i_row_count = 0; i_row_count < i_m2_row;
++i_row_count)
{
*(mat_2+i_row_count) = malloc(sizeof(int) * i_m2_col);
for (i_col_count = 0; i_col_count < i_m2_col;
++i_col_count)
{
printf("Element[%d][%d]: ", i_row_count,
i_col_count);
scanf("%d",&(*(*(mat_2+i_row_count)+i_col_count)));
*(mat_2+i_row_count)+i_col_count;
}
}
printf("nnn");
for (i_row_count = 0; i_row_count < i_m1_row;
++i_row_count)
{
for (i_col_count = 0; i_col_count < i_m1_col;
++i_col_count)
{
printf("Element[%d][%d] - Mat-1: %dn",
i_row_count, i_col_count, mat_1[i_row_count][i_col_count]);
}
}
printf("nnn");
M.Tech – CSE – Weekend (2012 – 2015) Page 30
32. Programming in C of College days
void disp_matrix(void)
{
int i_row_count, i_col_count;
for (i_row_count = 0; i_row_count < i_m1_row;
++i_row_count)
{
for (i_col_count = 0; i_col_count < i_m2_col;
++i_col_count)
{
printf("Resultant[%d][%d] - Res-2: %dn",
i_row_count, i_col_count,
*(*(res_mat+i_row_count)+i_col_count));
}
}
printf("nnn");
}
M.Tech – CSE – Weekend (2012 – 2015) Page 32
33. Programming in C of College days
10. WAP without using string‟s function for :
a. Copy of one string in another
b. Concatenation of string
c. Comparison of strings
d. Reverse the string
Program:
a. Copy of one string in another
#include <stdio.h>
#define STR_SIZE 1024
char* get_string(void);
char* str_copy(char* gvn_str);
int main()
{
printf("WAP without using string's function to Copy one
string into another.");
printf("nnn");
char* temp = malloc(sizeof(char) * STR_SIZE);
temp = get_string();
printf("nnn");
printf("Copied String: %s", str_copy(temp));
printf("nnn");
system("pause");
return 0;
}
char* get_string(void)
{
char* chp_var1;
char ch_temp;
int i_num = 0;
chp_var1 = malloc(sizeof(char) * STR_SIZE);
printf("Please Enter an string to copy ('n' is
terminating character): ");
while ((ch_temp = getchar()) != 'n')
{
M.Tech – CSE – Weekend (2012 – 2015) Page 33
34. Programming in C of College days
*(chp_var1 + i_num) = ch_temp;
i_num++;
}
*(chp_var1 + i_num) = '0';
return chp_var1;
}
char* str_copy(char* gvn_str)
{
char* chp_var;
int i_num = 0;
chp_var = malloc(sizeof(char) * STR_SIZE);
while (*(gvn_str + i_num) != '0')
{
*(chp_var + i_num) = *(gvn_str + i_num);
i_num++;
}
*(chp_var + i_num) = '0';
return chp_var;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
b. Concatenation of string
#include <stdio.h>
#define STR_SIZE 1024
char* concat_str(char* chp_var1, char* chp_var2);
unsigned int get_str_len(char* chp_var);
int main()
{
printf("WAP without using string's function for
Concatenating of two strings. ");
char* chp_var1;
char* chp_var2;
char* chp_res;
M.Tech – CSE – Weekend (2012 – 2015) Page 34
35. Programming in C of College days
printf("nnn");
chp_var1 = malloc(sizeof(char) * STR_SIZE);
chp_var2 = malloc(sizeof(char) * STR_SIZE);
printf("Please Enter an string: ");
scanf("%s", chp_var1);
printf("nn");
printf("Please Enter another string to concatenate: ");
scanf("%s", chp_var2);
chp_res = concat_str(chp_var1, chp_var2);
printf("nResultant String (after Copying): %s", chp_res);
printf("n");
system("pause");
return 0;
}
char* concat_str(char* chp_var1, char* chp_var2)
{
size_t size = get_str_len(chp_var1) +
get_str_len(chp_var2);
chp_var1 = (char*)realloc(chp_var1, (size+1));
unsigned int ui_count = 0;
while (*(chp_var1+ui_count) != '0')
ui_count++;
while (*chp_var2 != '0')
{
*(chp_var1+ui_count) = *chp_var2;
ui_count++;
chp_var2++;
}
*(chp_var1+ui_count) = '0';
return chp_var1;
}
unsigned int get_str_len(char* chp_var)
{
M.Tech – CSE – Weekend (2012 – 2015) Page 35
36. Programming in C of College days
unsigned int ui_count = 0;
while (*chp_var != '0')
{
ui_count++;
chp_var++;
}
return ui_count;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
c. Comparison of strings
#include <stdio.h>
#include <stdbool.h>
#define STR_SIZE 1024
bool comp_str(char* chp_var1, char* chp_var2);
int main()
{
printf("WAP without using string's function to Comparison of
strings.");
char* chp_var1;
char* chp_var2;
bool b_res;
printf("nnn");
chp_var1 = malloc(sizeof(char) * STR_SIZE);
chp_var2 = malloc(sizeof(char) * STR_SIZE);
printf("Please Enter an string: ");
scanf("%s", chp_var1);
printf("nn");
printf("Please Enter another string to compare: ");
scanf("%s", chp_var2);
b_res = comp_str(chp_var1, chp_var2);
if (b_res)
printf("nStrings are same.");
else
printf("nStrings are not same.");
M.Tech – CSE – Weekend (2012 – 2015) Page 36
37. Programming in C of College days
printf("n");
system("pause");
return 0;
}
bool comp_str(char* chp_var1, char* chp_var2)
{
unsigned int ui_count = 0;
while (*(chp_var1+ui_count)== *(chp_var2+ui_count))
{
if (*(chp_var1+ui_count) == '0')
return true;
ui_count++;
}
return false;
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
d. Reverse the string
#include <stdio.h>
#include <stdbool.h>
#define STR_SIZE 1024
char* comp_str(char* chp_var1);
unsigned int get_str_len(char* chp_var);
int main()
{
printf("WAP without using string's function to Reverse the
string.");
char* chp_var1;
char* chp_res;
printf("nnn");
chp_var1 = malloc(sizeof(char) * STR_SIZE);
printf("Please Enter an string: ");
scanf("%s", chp_var1);
chp_res = comp_str(chp_var1);
M.Tech – CSE – Weekend (2012 – 2015) Page 37
38. Programming in C of College days
printf("nResultant Strings (after reverse): %s", chp_res);
printf("n");
system("pause");
return 0;
}
char* comp_str(char* chp_var1)
{
size_t size = get_str_len(chp_var1);
char* chp_str = malloc(size+1);
unsigned int ui_rev_idx = (size - 1);
unsigned int ui_count = 0;
while (*(chp_var1+ui_count) != '0')
{
*(chp_str+ui_rev_idx) = *(chp_var1+ui_count);
ui_rev_idx--;
ui_count++;
}
*(chp_str+size) = '0';
return chp_str;
}
unsigned int get_str_len(char* chp_var)
{
unsigned int ui_count = 0;
while (*chp_var != '0')
{
ui_count++;
chp_var++;
}
return ui_count;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 38
39. Programming in C of College days
11. WAP to check that given string is palindrome or not?
Program:
#include <stdio.h>
#include <stdbool.h>
bool check(char* usr_str, char* chk_str);
int main()
{
printf("WAP to check given string is Palindrome.n");
printf("nnn");
bool b_check;
char* chp_var = malloc(sizeof(char) * 1024);
char* chk_var = malloc(sizeof(char) * 1024);
char* temp = chp_var;
unsigned int ui_no_char = 0;
printf("Enter string to check palindrome: ");
while ((*chp_var = getchar())!='n')
{
*chk_var = *chp_var;
chk_var++;
chp_var++;
ui_no_char++;
}
*chp_var = '0';
chp_var = temp;
chk_var--;
b_check = check(chp_var, chk_var);
if (b_check)
printf("nResult: %s, is palindrome.n", chp_var);
else
printf("nResult: %s, isn't palindrome.n", chp_var);
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 39
40. Programming in C of College days
bool check(char* usr_str, char* chk_str)
{
unsigned int ui_count, ui_chk;
ui_chk = ui_count = 0;
while (*usr_str != '0')
{
ui_count++;
if (*usr_str != *chk_str)
{
return false;
}
else
{
ui_chk++;
}
usr_str++;
chk_str--;
}
if (ui_count == ui_chk)
return true;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 40
41. Programming in C of College days
12. WAP to store the information about book‟s Title, Author, Page, &
Price. Display the information by using pointer & structure with
following restriction :
a. Display elements by passing one element at time.
b. By passing all elements at time.
Program:
#include <stdio.h>
#include <stdbool.h>
#include <ctype.h>
#include <string.h>
#define HEAD_SIZE 9
#define DIGIT_SIZE 9
#define STRING_LEN 30
void get_choice(void);
bool store_info(void);
bool disp_one_elem(void);
bool disp_all_elem(void);
char* int_to_alpha(int i_num);
struct bk_detail
{
char* chp_stitle;
char* chp_sname;
int i_spage;
int i_sprice;
};
int main()
{
printf("WAP to store the information about book's Title,
Author, Page, & Price. nDisplay the information by using
pointer & structure with following restriction :");
printf("nt-> Display elements by passing one element at
time. nt-> By passing all elements at time.");
printf("nnn");
char ch_temp;
FILE* fp;
fp = fopen("book_idx_mgr.txt", "r+");
ch_temp = fgetc(fp);
fclose(fp);
if (ch_temp == -1)
M.Tech – CSE – Weekend (2012 – 2015) Page 41
42. Programming in C of College days
{
printf("No record inserted.n");
get_choice();
}
else
{
printf("nBook Index File is ready for use.n");
get_choice();
}
fclose(fp);
printf("nnn");
system("pause");
return 0;
}
char* int_to_alpha(int i_num)
{
int i_count, i_sign, i_rev_count;
char* chp_num = malloc(sizeof(char) * DIGIT_SIZE);
char* chp_rev_num = malloc(sizeof(char) * DIGIT_SIZE);
i_sign = 0;
i_count = i_rev_count = 0;
if (i_num == 0)
{
*(chp_num + i_count) = '0';
i_count++;
}
else if (i_num < 0)
{
i_sign = -1;
i_num *= -1;
}
while (i_num > 0)
{
*(chp_num + i_count) = i_num % 10 + '0';
i_count++;
i_num /= 10;
}
if (i_sign < 0)
{
*(chp_num + i_count) = '-';
i_count++;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 42
43. Programming in C of College days
*(chp_num + i_count) = '0';
i_count = 0;
i_rev_count = strlen(chp_num)-1;
while (*(chp_num + i_count) != '0')
{
*(chp_rev_num + i_count) = *(chp_num + i_rev_count);
i_count++;
i_rev_count--;
}
*(chp_rev_num + i_count) = '0';
return chp_rev_num;
}
void get_choice(void)
{
bool (*pfunc_seq[3])();
pfunc_seq[0] = store_info;
pfunc_seq[1] = disp_one_elem;
pfunc_seq[2] = disp_all_elem;
printf("nYour choices for operation:n");
printf("nt a. To insert record (press) - 1n");
printf("nt b. To display complete info of the nt book
(your selected name of book) (press) - 2n");
printf("nt a. To display all records (press) - 3n");
printf("nPlease Enter your choice: ");
char ch_choice;
if ((ch_choice = getchar()) == '1')
{
(*pfunc_seq[0])();
}
else if (ch_choice == '2')
{
(*pfunc_seq[1])();
}
else if (ch_choice == '3')
{
(*pfunc_seq[2])();
}
else
printf("nChoice is invalid.n");
}
M.Tech – CSE – Weekend (2012 – 2015) Page 43
45. Programming in C of College days
printf("nTo display the details of record as per your
choice.n");
struct bk_detail s_bk_detail;
s_bk_detail.chp_sname = malloc(sizeof(char) * STRING_LEN);
s_bk_detail.chp_stitle = malloc(sizeof(char) * STRING_LEN);
s_bk_detail.i_spage = 0;
s_bk_detail.i_sprice = 0;
char* chp_usr_book = malloc(sizeof(char) * STRING_LEN);
printf("Please Enter the title of the book: ");
scanf("%s", chp_usr_book);
FILE* fp;
fp = fopen("book_idx_mgr.txt", "r+");
char* chp_str = malloc(sizeof(char) * HEAD_SIZE);
char* chp_prev_str = malloc(sizeof(char) * HEAD_SIZE);
char ch_temp;
int i_ch_count = 0;
bool b_store = false;
bool b_assign = false;
while ((ch_temp = fgetc(fp))!= EOF)
{
if ((isalpha(ch_temp))||(isdigit(ch_temp))||(ch_temp
== '_'))
{
*(chp_str + i_ch_count) = ch_temp;
i_ch_count++;
}
else if ((ch_temp == ':')||(ch_temp == 'n'))
{
*(chp_str + i_ch_count) = '0';
i_ch_count = 0;
if (ch_temp == ':')
{
b_store = false;
}
else if (ch_temp == 'n')
b_store = true;
if (b_store)
{
if (strcmp(chp_str, chp_usr_book) == 0)
{
b_assign = true;
M.Tech – CSE – Weekend (2012 – 2015) Page 45
46. Programming in C of College days
}
if (b_assign)
{
if (strcmp(chp_prev_str, "Title") == 0)
{
s_bk_detail.chp_stitle =
strcpy(s_bk_detail.chp_stitle, chp_str);
printf("nTitle - %s",
s_bk_detail.chp_stitle);
}
else if (strcmp(chp_prev_str, "Author")
== 0)
{
s_bk_detail.chp_sname =
strcpy(s_bk_detail.chp_sname, chp_str);
printf("nAuthor - %s",
s_bk_detail.chp_sname);
}
else if (strcmp(chp_prev_str, "Page") ==
0)
{
int i_temp = atoi(chp_str);
s_bk_detail.i_spage = i_temp;
printf("nPage - %d",
s_bk_detail.i_spage);
}
else if (strcmp(chp_prev_str, "Price") ==
0)
{
int i_temp = atoi(chp_str);
s_bk_detail.i_sprice = i_temp;
printf("nPrice - %d",
s_bk_detail.i_sprice);
b_assign = false;
}
}
}
else
{
chp_prev_str = strcpy(chp_prev_str,
chp_str);
}
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 46
47. Programming in C of College days
fclose(fp);
return true;
}
bool disp_all_elem()
{
printf("nTo display the details of record.n");
FILE* fp;
fp = fopen("book_idx_mgr.txt", "r+");
char* chp_str = malloc(sizeof(char) * HEAD_SIZE);
char ch_temp;
int i_ch_count = 0;
while ((ch_temp = fgetc(fp))!= EOF)
{
if ((isalpha(ch_temp))||(isdigit(ch_temp))||(ch_temp
== ':')||(ch_temp == ' ')||(ch_temp == '_'))
{
*(chp_str + i_ch_count) = ch_temp;
i_ch_count++;
}
else if (ch_temp == 'n')
{
*(chp_str + i_ch_count) = '0';
i_ch_count = 0;
fputs(chp_str, stdout);
fputs("n", stdout);
}
}
fclose(fp);
return true;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 47
48. Programming in C of College days
13. WAP to display the sum of entered number by writing on & reading
from file.
Program:
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdbool.h>
#define DIGIT_SIZE 9
void write_file(FILE* fp);
void read_file(FILE* fp);
int main()
{
printf("WAP to write integer numbers to files, then separate
even & odd numbers among them & store & display them in separate
files.");
printf("nnn");
FILE* fp;
printf("Please Note: nt->Comma(','), nt->Blank-Space ('
'), nt->Tab ('t') nt->and Enter ('n') are separators");
printf("nt->whereas Dot ('.') is terminator, nLimitation:
Program will not accept any number more than 9 digits.");
printf("nPlease use any of spearator before terminator.");
printf("nnn");
printf("Please Enter numbers: ");
write_file(fp);
printf("nnn");
read_file(fp);
system("pause");
return 0;
}
void write_file(FILE* fp)
{
fp = fopen("Integer_data.txt", "w+");
int* ip_usr_data;
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50. Programming in C of College days
ip_usr_data = malloc(sizeof(int));
char* ch_num = malloc(sizeof(char) * DIGIT_SIZE);
int i_count = 0;
bool b_check = false;
char ch_temp_data;
while ((ch_temp_data = fgetc(fp)) != EOF)
{
if (((ch_temp_data == ',')||(ch_temp_data == '
')||(ch_temp_data == 't')||(ch_temp_data == 'n'))&&(b_check))
{
b_check = false;
*(ch_num + i_count) = '0';
i_count = 0;
*ip_usr_data = atoi(ch_num);
if (*ip_usr_data)
{
if ((*ip_usr_data % 2) == 0)
{
fputs(ch_num, fp_even);
fputs(", ", fp_even);
}
else
{
fputs(ch_num, fp_odd);
fputs(", ", fp_odd);
}
}
}
else if (isdigit(ch_temp_data))
{
b_check = true;
*(ch_num + i_count) = ch_temp_data;
i_count++;
}
}
if (fclose(fp_even) == 0)
if (fclose(fp_odd) == 0)
if (fclose(fp) == 0)
printf("Normal termination.n");
else
printf("Abnormal termination.n");
else
printf("Abnormal termination.n");
M.Tech – CSE – Weekend (2012 – 2015) Page 50
51. Programming in C of College days
else
printf("Abnormal termination.n");
}
M.Tech – CSE – Weekend (2012 – 2015) Page 51
52. Programming in C of College days
14. Write integer numbers to files, then separate even & odd numbers
among them & store & display them in separate files.
Program:
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdbool.h>
#define DIGIT_SIZE 9
char* int_to_alpha(int i_num);
void write_file(FILE* fp, int i_addend, int i_augend);
void read_file(FILE* fp);
int main()
{
printf("WAP to display the sum of entered number by writing
on & reading from file.");
printf("nnn");
printf("Limitation: Program will only accept intergral
number of size 4 bytes.");
printf("nnn");
int i_addend, i_augend;
printf("Please Enter numbers: ");
scanf("%d", &i_addend);
printf("Please Enter numbers: ");
scanf("%d", &i_augend);
FILE* fp;
write_file(fp, i_addend, i_augend);
read_file(fp);
system("pause");
return 0;
}
char* int_to_alpha(int i_num)
{
int i_count, i_sign, i_rev_count;
char* chp_num = malloc(sizeof(char) * DIGIT_SIZE);
char* chp_rev_num = malloc(sizeof(char) * DIGIT_SIZE);
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54. Programming in C of College days
char* chp_augend = int_to_alpha(i_augend);
fputs(chp_addend, fp);
fputs(" + ", fp);
fputs(chp_augend, fp);
fputs(" = ", fp);
fclose(fp);
}
void read_file(FILE* fp)
{
int i_addend, i_augend, i_result;
fp = fopen("Summation.txt", "r+");
int* ip_usr_data;
ip_usr_data = malloc(sizeof(int));
char* chp_result;
char* ch_num = malloc(sizeof(char) * DIGIT_SIZE);
int i_count = 0;
int i_sign = 0;
bool b_check = false;
bool b_flag = false;
char ch_temp_data;
while ((ch_temp_data = fgetc(fp)) != EOF)
{
if ((ch_temp_data == ' ')&&(b_check))
{
b_check = false;
*(ch_num + i_count) = '0';
i_count = 0;
*ip_usr_data = atoi(ch_num);
if (i_sign < 0)
{
*ip_usr_data *= -1;
i_sign = 0;
}
if (*ip_usr_data)
{
if (b_flag)
{
i_augend = *ip_usr_data;
b_flag = false;
M.Tech – CSE – Weekend (2012 – 2015) Page 54
55. Programming in C of College days
}
else if (!b_flag)
{
i_addend = *ip_usr_data;
}
}
}
else if (isdigit(ch_temp_data))
{
b_check = true;
*(ch_num + i_count) = ch_temp_data;
i_count++;
}
else if (ch_temp_data == '+')
{
b_flag = true;
}
else if (ch_temp_data == '-')
{
i_sign = -1;
}
else if (ch_temp_data == '=')
{
i_result = i_addend + i_augend;
printf("Addend: %dn", i_addend);
printf("Augend: %dn", i_augend);
chp_result = int_to_alpha(i_result);
printf("Summation-: %sn", chp_result);
}
}
fputs(chp_result, fp);
if (fclose(fp) == 0)
printf("Normal termination.n");
else
printf("Abnormal termination.n");
}
M.Tech – CSE – Weekend (2012 – 2015) Page 55
56. Programming in C of College days
15. WAP to draw the given pattern as per user value.
*
**
***
****
*****
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t*n");
printf("t**n");
printf("t***n");
printf("t****n");
printf("t*****n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
for(ui_col = 1; ui_col <= ui_row; ++ui_col)
printf("*");
}
printf("nnn");
}
M.Tech – CSE – Weekend (2012 – 2015) Page 56
57. Programming in C of College days
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 57
58. Programming in C of College days
16. WAP to draw the given pattern as per user value.
1
12
123
1234
12345
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t1n");
printf("t12n");
printf("t123n");
printf("t1234n");
printf("t12345n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
for(ui_col = 1; ui_col <= ui_row; ++ui_col)
printf("%d", ui_col);
}
}
int main()
{
set_argument();
M.Tech – CSE – Weekend (2012 – 2015) Page 58
59. Programming in C of College days
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 59
60. Programming in C of College days
17. WAP to draw the given pattern as per user value.
1
21
321
4321
54321
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t 1n");
printf("t 21n");
printf("t 321n");
printf("t 4321n");
printf("t54321n");
printf("n");
printf("Please Enter a single digit number to draw pattern:
");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col, ui_count;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
unsigned int ui_blank_count = (i_number - ui_row);
for(ui_col = 1; ui_col <= ui_blank_count; ++ui_col)
printf(" ");
unsigned int ui_num_count = (i_number - ui_blank_count);
for(ui_count = ui_num_count; ui_count >= 1; --ui_count)
printf("%d", ui_count);
M.Tech – CSE – Weekend (2012 – 2015) Page 60
61. Programming in C of College days
}
}
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 61
62. Programming in C of College days
18.WAP to draw the given pattern as per user value.
5
54
543
5432
54321
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t5n");
printf("t54n");
printf("t543n");
printf("t5432n");
printf("t54321n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
int i_count = i_number;
for(ui_col = 1; ui_col <= ui_row; ++ui_col, --i_count)
printf("%d", i_count);
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 62
63. Programming in C of College days
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 63
64. Programming in C of College days
19. WAP to draw the given pattern as per user value.
5
45
345
2345
12345
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t 5n");
printf("t 45n");
printf("t 345n");
printf("t 2345n");
printf("t12345n");
printf("n");
printf("Please Enter a single digit number to draw pattern:
");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col, ui_count;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
unsigned int ui_blank_count = (i_number - ui_row);
for(ui_col = 1; ui_col <= ui_blank_count; ++ui_col)
printf(" ");
int i_count = ui_blank_count;
for(ui_count = 1; ui_count <= ui_row; ++ui_count,
++i_count)
M.Tech – CSE – Weekend (2012 – 2015) Page 64
65. Programming in C of College days
printf("%d", (i_count+1));
}
}
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 65
66. Programming in C of College days
20. WAP to draw the given pattern as per user value.
54321
5432
543
54
5
Program:
#include <stdio.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t54321n");
printf("t5432n");
printf("t543n");
printf("t54n");
printf("t5n");
printf("n");
printf("Please Enter a single digit number to draw pattern:
");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col;
for(ui_row = 1; ui_row <= i_number; ++ui_row)
{
printf("nt");
for(ui_col = i_number; ui_col >= ui_row; --ui_col)
printf("%d", ui_col);
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 66
67. Programming in C of College days
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 67
68. Programming in C of College days
21. WAP to draw the given pattern as per user value.
5
545
54345
5432345
543212345
Program:
#include <stdio.h>
#include <stdbool.h>
int i_number;
void set_argument()
{
printf("***To Draw The given pattern as per user
value.***nnn");
printf("n");
printf("t 5n");
printf("t 545n");
printf("t 54345n");
printf("t 5432345n");
printf("t543212345n");
printf("n");
printf("Please Enter a number to draw pattern: ");
scanf("%d", &i_number);
printf("nnn");
}
void draw_pattern()
{
unsigned int ui_row, ui_col, ui_blank;
for(ui_row = 0; ui_row <= i_number; ++ui_row)
{
printf("nt");
unsigned int ui_blank_count = (i_number - ui_row);
for(ui_blank = 1; ui_blank <= ui_blank_count;
++ui_blank)
printf(" ");
bool b_flag_f = true;
bool b_flag_b = true;
M.Tech – CSE – Weekend (2012 – 2015) Page 68
69. Programming in C of College days
for(ui_col = (2*ui_row + 1); ui_col >= 1; --ui_col)
{
if (((ui_col%2)==0)&&(b_flag_f))
{
unsigned int ui_count;
int i_count = i_number;
for(ui_count = 1; ui_count <= (ui_col/2);
++ui_count, --i_count)
printf("%d", i_count);
b_flag_f = false;
}
else if(((ui_col%2)==0)&&(!b_flag_f)&&(b_flag_b))
{
unsigned int ui_count;
int i_count = i_number - (ui_col/2) +1;
for (ui_count = (ui_col/2); ui_count >= 1; --
ui_count, ++i_count)
printf("%d", i_count);
b_flag_b = false;
}
}
}
}
int main()
{
set_argument();
draw_pattern();
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 69
70. Programming in C of College days
22. WAP to pass array element one by one using pointer and
function.
Program:
#include <stdio.h>
#define SIZE_ARRAY 3
void print_item(int* item);
int main()
{
printf("WAP to pass array element one by one using pointer
and function.n");
printf("nnn");
int storage[SIZE_ARRAY][SIZE_ARRAY];
printf("Given order of array is %d * %dn", SIZE_ARRAY,
SIZE_ARRAY);
int i_loop_count, j_loop_count;
for (i_loop_count = 0; i_loop_count < SIZE_ARRAY;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < SIZE_ARRAY;
++j_loop_count)
{
printf("Enter item for array[%d][%d]:
",i_loop_count, j_loop_count);
scanf("%d", &storage[i_loop_count][j_loop_count]);
}
printf("nnn");
printf("Output as Array-element:n");
for (i_loop_count = 0; i_loop_count < SIZE_ARRAY;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < SIZE_ARRAY;
++j_loop_count)
print_item(&storage[i_loop_count][j_loop_count]);
printf("nnn");
system("pause");
return 0;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 70
71. Programming in C of College days
void print_item(int* i_item)
{
static int i_count = 1;
printf("%d ", *i_item);
if ((i_count%3)==0)
printf("n");
i_count++;
}
M.Tech – CSE – Weekend (2012 – 2015) Page 71
72. Programming in C of College days
23. WAP to find (+)ive, (-)ive, even, odd, prime element from array.
Program:
#include <stdio.h>
#include <stdbool.h>
#define SIZE_ARRAY 3
void print_pos_item(int** item, int i_row, int i_col);
void print_neg_item(int** item, int i_row, int i_col);
void print_evn_item(int** item, int i_row, int i_col);
void print_odd_item(int** item, int i_row, int i_col);
void print_prime_item(int** item, int i_row, int i_col);
int main()
{
printf("WAP to find (+)ive, (-)ive, even, odd, prime element
from array.n");
printf("nnn");
int i_row, i_col;
printf("Please enter the Order of Mtrix.");
printf("nEnter number of Rows: ");
scanf("%d", &i_row);
printf("nEnter number of Columns: ");
scanf("%d", &i_col);
int** ip_storage = malloc(sizeof(int) * i_row * i_col);
int i_count;
for (i_count = 0; i_count < i_row; ++i_count)
*(ip_storage + i_count) = malloc(sizeof(int) * i_col);
printf("Please enter %d items for corresponding rows and
columns of storage: nn", (i_row * i_col));
int i_loop_count, j_loop_count;
for (i_loop_count = 0; i_loop_count < i_row; ++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_col;
++j_loop_count)
{
printf("Enter item for array[%d][%d]:
",i_loop_count, j_loop_count);
scanf("%d", &(*(*(ip_storage + i_loop_count) +
j_loop_count)));
M.Tech – CSE – Weekend (2012 – 2015) Page 72
73. Programming in C of College days
}
printf("nnn");
print_pos_item(ip_storage, i_row, i_col);
printf("nnn");
print_neg_item(ip_storage, i_row, i_col);
printf("nnn");
print_evn_item(ip_storage, i_row, i_col);
printf("nnn");
print_odd_item(ip_storage, i_row, i_col);
printf("nnn");
print_prime_item(ip_storage, i_row, i_col);
printf("nnn");
system("pause");
return 0;
}
void print_pos_item(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of (+)ive items:n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
if ((*(*(ip_storage + i_loop_count) + j_loop_count)
>= 0))
printf("%d, ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
void print_neg_item(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of (-)ive items:n");
M.Tech – CSE – Weekend (2012 – 2015) Page 73
74. Programming in C of College days
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
if ((*(*(ip_storage + i_loop_count) + j_loop_count)
< 0))
printf("%d, ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
void print_evn_item(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of even items:n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
if (((*(*(ip_storage + i_loop_count) +
j_loop_count)%2) == 0))
printf("%d, ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
void print_odd_item(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of odd items:n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
if ((*(*(ip_storage + i_loop_count) +
j_loop_count)%2) != 0)
printf("%d, ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 74
75. Programming in C of College days
void print_prime_item(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
bool b_check;
printf("List of prime items:n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
int i_count;
for(i_count = 2; i_count <= (i_count/2);
++i_count)
{
if((*(*(ip_storage + i_loop_count) +
j_loop_count) % i_count) == 0)
{
b_check = true;
break;
}
else
b_check = false;
}
if(!b_check)
{
printf("%d, ", *(*(ip_storage +
i_loop_count) + j_loop_count));
}
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 75
76. Programming in C of College days
24. WAP to display array element in row-major and column-mjor
technique.
Program:
#include <stdio.h>
#include <stdbool.h>
void row_major_tech(int** item, int i_row, int i_col);
void col_major_tech(int** item, int i_row, int i_col);
int main()
{
printf("WAP to display array element in row-major and
column-mjor technique.n");
printf("nnn");
int i_row, i_col;
printf("Please enter the Order of Mtrix.");
printf("nEnter number of Rows: ");
scanf("%d", &i_row);
printf("nEnter number of Columns: ");
scanf("%d", &i_col);
int** ip_storage = malloc(sizeof(int) * i_row * i_col);
int i_count;
for (i_count = 0; i_count < i_row; ++i_count)
*(ip_storage + i_count) = malloc(sizeof(int) * i_col);
printf("Please enter %d items for corresponding rows and
columns of storage: nn", (i_row * i_col));
int i_loop_count, j_loop_count;
for (i_loop_count = 0; i_loop_count < i_row; ++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_col;
++j_loop_count)
{
printf("Enter item for array[%d][%d]:
",i_loop_count, j_loop_count);
scanf("%d", &(*(*(ip_storage + i_loop_count) +
j_loop_count)));
}
printf("nnn");
row_major_tech(ip_storage, i_row, i_col);
M.Tech – CSE – Weekend (2012 – 2015) Page 76
77. Programming in C of College days
printf("nnn");
col_major_tech(ip_storage, i_row, i_col);
printf("nnn");
system("pause");
return 0;
}
void row_major_tech(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of items as Row-Major technique:n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
{
printf("n");
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
printf("%d ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
}
void col_major_tech(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
printf("List of items as Column-Major technique:n");
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
printf("n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
{
printf("%d ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 77
78. Programming in C of College days
25. WAP to transpose a given matrix using pointer and function.
Program:
#include <stdio.h>
#include <stdbool.h>
#define SIZE_ARRAY 3
void print_trans_matrix(int** item, int i_row, int i_col);
int main()
{
printf("WAP to transpose a given using pointer and
function.n");
printf("nnn");
int i_row, i_col;
printf("Please enter the Order of Mtrix.");
printf("nEnter number of Rows: ");
scanf("%d", &i_row);
printf("nEnter number of Columns: ");
scanf("%d", &i_col);
int** ip_storage = malloc(sizeof(int) * i_row * i_col);
int i_count;
for (i_count = 0; i_count < i_row; ++i_count)
*(ip_storage + i_count) = malloc(sizeof(int) * i_col);
printf("Please enter %d items for corresponding rows and
columns of storage: nn", (i_row * i_col));
int i_loop_count, j_loop_count;
for (i_loop_count = 0; i_loop_count < i_row; ++i_loop_count)
for (j_loop_count = 0; j_loop_count < i_col;
++j_loop_count)
{
printf("Enter item for array[%d][%d]:
",i_loop_count, j_loop_count);
scanf("%d", &(*(*(ip_storage + i_loop_count) +
j_loop_count)));
}
printf("nnn");
M.Tech – CSE – Weekend (2012 – 2015) Page 78
79. Programming in C of College days
print_trans_matrix(ip_storage, i_row, i_col);
printf("nnn");
system("pause");
return 0;
}
void print_trans_matrix(int** ip_storage, int i_row, int i_col)
{
int i_loop_count, j_loop_count;
int** trans_mat = malloc(sizeof(int) * i_row * i_col);
int i_count;
for (i_count = 0; i_count < i_row; ++i_count)
*(trans_mat + i_count) = malloc(sizeof(int) * i_col);
printf("nMatrix You entered:");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
{
printf("n");
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
printf("%d ", *(*(ip_storage + i_loop_count) +
j_loop_count));
}
}
printf("nMatrix after Transpose:");
for (j_loop_count = 0; j_loop_count < i_row;
++j_loop_count)
{
printf("n");
for (i_loop_count = 0; i_loop_count < i_row;
++i_loop_count)
{
*(*(trans_mat + j_loop_count) + i_loop_count) =
*(*(ip_storage + i_loop_count) + j_loop_count);
printf("%d ", *(*(trans_mat + j_loop_count) +
i_loop_count));
}
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 79
80. Programming in C of College days
26. WAP to display the mathematical table of given number.
Program:
#include <stdio.h>
void disp_mult_table_range(int i_lr, int i_hr);
int main()
{
printf("WAP to display the mathematical table of given range
of numbers.n");
printf("nnn");
int i_lr, i_hr;
printf("Please Enter lower limit: ");
scanf("%d", &i_lr);
printf("Please Enter higher limit: ");
scanf("%d", &i_hr);
disp_mult_table_range(i_lr, i_hr);
printf("nnn");
system("pause");
return 0;
}
void disp_mult_table_range(int i_lr, int i_hr)
{
int i_multiplicand, i_multiplier;
for (i_multiplier = i_lr; i_multiplier <= i_hr;
++i_multiplier)
{
printf("nnn");
printf("Multiplication Table of %d:n", i_multiplier);
for (i_multiplicand = 1; i_multiplicand <= 10;
++i_multiplicand)
{
printf("t%d * %d = %dn", i_multiplier,
i_multiplicand, (i_multiplier * i_multiplicand));
}
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 80
81. Programming in C of College days
27. WAP to display the mathematical table of given number.
Program:
#include <stdio.h>
void disp_mult_table(int i_num);
int main()
{
printf("WAP to display the mathematical table of given
number.n");
printf("nnn");
int i_num;
printf("Please Enter number: ");
scanf("%d", &i_num);
disp_mult_table(i_num);
printf("nnn");
system("pause");
return 0;
}
void disp_mult_table(int i_num)
{
int i_multiplicand;
for (i_multiplicand = 1; i_multiplicand <= 10;
++i_multiplicand)
{
printf("t%d * %d = %dn", i_num, i_multiplicand,
(i_num * i_multiplicand));
}
}
M.Tech – CSE – Weekend (2012 – 2015) Page 81
82. Programming in C of College days
28. WAP to display alphabets „a‟ to „z‟ and “A” to “Z”
a. Using pointers.
b. Without using pointers.
Program:
a. Using pointers.
#include <stdio.h>
#include <stdbool.h>
void disp_lower_case_alphabets_wp(void);
void disp_upper_case_alphabets_wp(void);
int main()
{
printf("WAP to display a to z and A to Z by using
pointer.n");
printf("nnn");
disp_lower_case_alphabets_wp();
printf("nnn");
disp_upper_case_alphabets_wp();
printf("nnn");
system("pause");
return 0;
}
void disp_lower_case_alphabets_wp(void)
{
printf("Displaying lower - case alphabets:-n");
char* chp_var = "a";
unsigned int ui_loop_count;
for (ui_loop_count = 0; ui_loop_count < 26; ++ui_loop_count)
{
if (ui_loop_count%10 == 0)
printf("n");
printf("%ct", *chp_var + ui_loop_count);
}
}
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83. Programming in C of College days
void disp_upper_case_alphabets_wp(void)
{
printf("Displaying lower - case alphabets:-n");
char* chp_var = "A";
unsigned int ui_loop_count;
for (ui_loop_count = 0; ui_loop_count < 26;
++ui_loop_count)
{
if (ui_loop_count%10 == 0)
printf("n");
printf("%ct", *chp_var + ui_loop_count);
}
}
~~~~~~~~~~~~~~~~~~~~~************~~~~~~~~~~~~~~~~~~~~~
a. Without using pointers.
#include <stdio.h>
#include <stdbool.h>
void disp_lower_case_alphabets(void);
void disp_upper_case_alphabets(void);
int main()
{
printf("WAP to display a to z and A to Z by using
pointer.n");
printf("nnn");
disp_lower_case_alphabets();
printf("nnn");
disp_upper_case_alphabets();
printf("nnn");
system("pause");
return 0;
}
void disp_lower_case_alphabets(void)
{
printf("Displaying lower - case alphabets:-n");
char chp_var = 'a';
unsigned int ui_loop_count;
for (ui_loop_count = 0; ui_loop_count < 26; ++ui_loop_count)
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84. Programming in C of College days
{
if (ui_loop_count%10 == 0)
printf("n");
printf("%ct", chp_var + ui_loop_count);
}
}
void disp_upper_case_alphabets(void)
{
printf("Displaying lower - case alphabets:-n");
char chp_var = 'A';
unsigned int ui_loop_count;
for (ui_loop_count = 0; ui_loop_count < 26;
++ui_loop_count)
{
if (ui_loop_count%10 == 0)
printf("n");
printf("%ct", chp_var + ui_loop_count);
}
}
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85. Programming in C of College days
29. WAP to take character sequence (string) and diplay it, using
pointer and functions.
Program:
#include <stdio.h>
#include <stdbool.h>
#define MAX_SEQL_SIZE 1024
char* get_char_seql(void);
void disp_char_seql(char*);
int main()
{
printf("WAP to take character sequence (string) and diplay
it, using pointer and functions.n");
printf("nnn");
printf("Please press 'dot'(.) as terminating character.");
printf("nnn");
char* chp_seql;
chp_seql = get_char_seql();
printf("nnn");
disp_char_seql(chp_seql);
printf("nnn");
system("pause");
return 0;
}
char* get_char_seql(void)
{
printf("Enter your character sequel:- ");
char* chp_var = (char*)malloc(sizeof(char) * MAX_SEQL_SIZE);
char ch_temp;
unsigned int ui_count = 0;
while((ch_temp = getchar()) != '.')
{
*(chp_var + ui_count) = ch_temp;
ui_count++;
}
*(chp_var + ui_count) = '0';
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86. Programming in C of College days
return chp_var;
}
void disp_char_seql(char* chp_seql)
{
printf("Character sequel you entered:- %s", chp_seql);
}
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87. Programming in C of College days
Note:
For Visual Studio 2008 and Qt (version- 4.2) you need to format the code as, make
all the initialization throughout the function to very initial steps after opening
braces.
M.Tech – CSE – Weekend (2012 – 2015) Page 87