#include<stdio.h> #include<math.h> main() { int a1,a2,b1,b2,c1,c2,a,b,c,h,min,s,n,m1,m2; scanf("%d:%d:%d",&a1,&b1,&c1); scanf("%d:%d:%d",&a2,&b2,&c2); m1=a1*3600+b1*60+c1; m2=a2*3600+b2*60+c2; n=fabs(m1-m2); h=n/3600; min=(n-h*3600)/60; s=(n-h*3600-min*60); printf("%d:%02d:%02d",h,min,s); //两位前如何添加0?%02d } |
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