View Code of Problem 56

#include<stdio.h>
#include<math.h>
#include<stdlib.h>
int main()
{
	int s1,f1,m1,s2,f2,m2,c,h1,h2,s3,f3,m3;
	scanf("%d:%d:%d",&s1,&f1,&m1);
	scanf("%d:%d:%d",&s2,&f2,&m2);
	h1=s1*3600+f1*60+m1;
	h2=s2*3600+f2*60+m2;
	c=fabs(h1-h2);
	s3=c/3600;
	f3=(c-s3*3600)/60;
	m3=c%60;
	printf("%d:%d:%d",s3,f3,m3);
	return 0;
}

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