View Code of Problem 56

#include <stdio.h>
#include <math.h>
int main(){
	int sum,sum1,sum2,hour,hour1,hour2,min,min1,min2,sec,sec1,sec2;
	scanf("%d:%d:%d",&hour1,&min1,&sec1);
	sum1=hour1*3600+min1*60+sec1;
	scanf("%d:%d:%d",&hour2,&min2,&sec2);
	sum2=hour2*3600+min2*60+sec2;
	sum=fabs(sum1-sum2);
	hour=sum/3600;
	min=(sum-hour*3600)/60;
	sec=sum-hour*3600-min*60;
	printf("%d:%02d:%02d",hour,min,sec);
}