#include<stdio.h> int main(){ int h1,m1,s1; int h2,m2,s2; int x,y,z,h,m,s; scanf("%d:%d:%d",&h1,&m1,&s1); scanf("%d:%d:%d",&h2,&m2,&s2); x=h1*3600+m1*60+s1; y=h2*3600+m2*60+s2; if(x>=y) { z=x-y; } else{ z=y-x; } h=z/3600; m=z%3600/60; s=z%3600%60; printf("%d:%d:%d",h,m,s); return 0; } |
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