北大ACM poj3751

//3751#include<stdio.h>main(){int test,hour,h;char ye[5],mo[6],mi[6],ap;scanf("%d",&test);while(test--){scanf("%4s/%5s-%d:%s",ye,mo,&hour,mi);//输入日期时间 h=hour%12;ap=hour/12?'p':'a';printf("%s/%s-%02d:%s%cm\n",mo,ye,h?h:12,mi,ap);}}