scratchyourbrain

#include <stdio.h>
int main()
{
      int num;
      printf("Enter an integer you want to check: ");
      scanf("%d",&num);
      if((num%2)==0)      /* Checking whether remainder is 0 or not. */
           printf("%d is even.",num);
      else
           printf("%d is odd.",num);

scratchyourbrain

#include <stdio.h>
int main()
{
      int a, b, temp;
      printf("Enter value of a: ");
      scanf("%d",&a);
      printf("Enter value of b: ");
      scanf("%d",&b);
      temp = a;    /* Value of a is stored in variable temp */
      a = b;       /* Value of b is stored in variable a */

scratchyourbrain

#include <stdio.h>
int main()
{
    int a;
    float b;
    double c;
    char d;
    printf("Size of int: %d bytes\n",sizeof(a));
    printf("Size of float: %d bytes\n",sizeof(b));
    printf("Size of double: %d bytes\n",sizeof(c));

scratchyourbrain

/* to find ASCII value of a character entered by user */

#include <stdio.h>
int main()
{
    char c;
    printf("Enter a character: ");
    scanf("%c",&c);
    printf("ASCII value of %c = %d\n",c,c);
    return 0;