HDU4510 模拟

腾讯马拉松

水~~

注意是12小时一周期！！！！！！！！！！！！！！！！！！！！！！！

View Code

 1 #include<stdio.h>

 2 #include<string.h>

 3 struct node{

 4     int h,m,s,all;

 5 };

 6 node now,pre,tmp;

 7 int main(){

 8     int n;

 9     scanf("%d",&n);

10     while( n-- ){

11         scanf("%d:%d:%d",&now.h,&now.m,&now.s);

12         now.all = now.h*3600+now.m*60+now.s;

13         scanf("%d:%d:%d",&tmp.h,&tmp.m,&tmp.s);

14         while( tmp.h>=12 ){

15             tmp.h -= 12;

16         }

17         tmp.all = tmp.h*3600+tmp.m*60+tmp.s;

18         int tot;

19         tot = now.all - tmp.all;

20         if( tot >=0 ){ 

21             pre.h = tot/3600,tot = tot - pre.h*3600;

22             pre.m = tot/60, tot = tot - pre.m*60;

23             pre.s = tot;

24             printf("%02d:%02d:%02d\n",pre.h,pre.m,pre.s);

25         }

26         else{

27             tot=-tot;

28             pre.h = tot/3600,tot = tot - pre.h*3600;

29             pre.m = tot/60, tot = tot - pre.m*60;

30             pre.s = tot;

31             now.h=12,now.m=0,now.s=0;

32             if( now.s<pre.s ){

33                 now.m = 59;

34                 now.h = 11;

35                 now.s = 60-pre.s;

36             }

37             else {}

38             if( now.m<pre.m ){

39                 now.m += 60;

40                 now.m -= pre.m;

41                 now.h --;

42             }

43             else{

44                 now.m-=pre.m;

45             }

46             now.h-=pre.h;

47 

48             printf("%02d:%02d:%02d\n",now.h,now.m,now.s);

49         }

50     }

51     return 0;

52 }