View Code of Problem 56

#define _CRT_SECURE_NO_DEPRECATE
#include <iostream>
#include<stdio.h>
#include<string>
#include<string.h>
using namespace std;
int main()
{
	int a, b, c;
	int d, e, f;
	scanf("%d:%d:%d", &a, &b, &c);
	scanf("%d:%d:%d", &d, &e, &f);
	int sum1, sum2, sum;
	sum1 = 3600 * a + 60 * b + c;
	sum2 = 3600 * d + 60 * e + f;
	sum = abs(sum1 - sum2);
	int x, y, z;
	x = sum / 3600;
	y = sum % 3600 / 60;
	z = sum % 60;
	printf("%d:%02d:%02d", x, y, z);
	
}