FOCUS!!!!!
Did you see any hours * minutes ?
Does hours * minutes make any sense?
Code:
#include <stdio.h>
int main ( ) {
int hours;
int min;
int hours2;
int min2;
int diff;
int diff_hr;
int diff_mn;
printf("Give start time in form h min (example 12:34):");
scanf("%d:%d", &hours, &min);
printf("Give end time in form h min (example 12:34):");
scanf("%d:%d", &hours2, &min2);
diff = ( hours2 * 60 + min2 ) - ( hours * 60 + min );
diff_hr = diff / 60;
diff_mn = diff % 60;
printf("Difference is %d:%d\n", diff_hr, diff_mn);
return 0;
}