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Difference Between Two Time Periods

Write a program to calculate difference between two time periods

INPUT FORMAT:

Input 1 : hours,minutes and seconds

Input 2 : hours,minutes and seconds

OUTPUT FORMAT:

TIME DIFFERENCE

SAMPLE INPUT:

12 15 24 

8 15 23                                            

SAMPLE OUTPUT:                                                                        

4:0:1

CODE :-

#include <stdio.h>

struct TIME {

   int seconds;

   int minutes;

   int hours;

};

void differenceBetweenTimePeriod(struct TIME t1, struct TIME t2, struct TIME *diff);

int main() {

   struct TIME startTime, stopTime, diff;

   scanf("%d %d %d", &startTime.hours, &startTime.minutes, &startTime.seconds);

   scanf("%d %d %d", &stopTime.hours, &stopTime.minutes, &stopTime.seconds);

   differenceBetweenTimePeriod(startTime, stopTime, &diff);

   printf("%d:%d:%d\n", diff.hours, diff.minutes, diff.seconds);

   return 0;

}

void differenceBetweenTimePeriod(struct TIME start, struct TIME stop, struct TIME *diff) {

   while (stop.seconds > start.seconds) {

      --start.minutes;

      start.seconds += 60;

   }

   diff->seconds = start.seconds - stop.seconds;

   while (stop.minutes > start.minutes) {

      --start.hours;

      start.minutes += 60;

   }

   diff->minutes = start.minutes - stop.minutes;

   diff->hours = start.hours - stop.hours;

}