// // main.c // a // // Created by rex on 16/9/14. // Copyright © 2016年 rex. All rights reserved. // #include <stdio.h> #include <string.h> int main() { int h1, m1, s1, h2, m2, s2, sum1, sum2, res; scanf("%d:%d:%d%d:%d:%d", &h1, &m1, &s1, &h2, &m2, &s2); sum1 = h1 * 60 * 60 + m1 * 60 + s1; sum2 = h2 * 60 * 60 + m2 * 60 + s2; if(sum2 < sum1) { res = sum2; sum2 = sum1; sum1 = res; } res = sum2 - sum1; printf("%d:%02d:%02d", res / 60 / 60, (res % 3600)/60, (res%3600)%60); return 0; } |
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