> #include<stdio.h>
> #include<string.h>
> char abbre[32][5]={"UTC","GMT","BST","IST","WET","WEST","CET","CEST","EET",
> 				"EEST","MSK","MSD","AST","ADT","NST","NDT","EST","EDT",
> 				"CST","CDT","MST","MDT","PST","PDT","HST","AKST","AKDT",
> 				"AEST","AEDT","ACST","ACDT","AWST"};
> float abbtime[]={0,0,1,1,0,1,1,2,2,3,3,4,-4,-3,-3.5,-2.5,-5,-4,-6,-5,-7,
> 					-6,-8,-7,-10,-9,-8,10,11,9.5,10.5,8};
> int main()
> {
> 	int n;
> 	char c;
> 	scanf("%d",&n);
> 	c=getchar();
> 	while(n--)
> 	{
> 		char tmp[25],zone1[5],zone2[5],area[10]={'\0'};
> 		int hour,min,i,num1,num2;
> 		gets(tmp);
> 		switch(tmp[0])
> 		{
> 		case 'n':hour=12;min=0;sscanf(tmp,"%s %s %s",area,zone1,zone2);
> 			break;
> 		case 'm':hour=0;min=0;sscanf(tmp,"%s %s %s",area,zone1,zone2);
> 			break;
> 		default:sscanf(tmp,"%d:%d %s %s %s",&hour,&min,area,zone1,zone2);
> 			break;
> 		}
> 		if(strcmp(area,"p.m.")==0&&hour!=12)
> 			hour+=12;
> 		if(strcmp(area,"a.m.")==0&&hour==12)
> 			hour=0;
> 		min+=hour*60;
> 		for(i=0;i<32;i++)
> 		{
> 			if(strcmp(zone1,abbre[i])==0)
> 			{
> 				num1=i;
> 				break;
> 			}
> 		}
> 		min-=(int)abbtime[num1]*60;
> 		for(i=0;i<32;i++)
> 		{
> 			if(strcmp(zone2,abbre[i])==0)
> 			{
> 				num2=i;
> 				break;
> 			}
> 		}
> 		min+=(int)abbtime[num2]*60;
> 	    if(min>=0)
> 		{
> 			hour=min/60;
> 			min-=hour*60;
> 			while(hour>=24)
> 				hour-=24;
> 		}
> 		else if(min<0)
> 		{
> 			min+=24*60;
> 			hour=min/60;
> 			min-=hour*60;
> 		}
> 		if(hour>12)
> 		{
> 			printf("%d:%02d p.m.\n",hour-12,min);
> 		}
> 		else if(hour<12&&hour!=0&&!(hour==0&&min==0))
> 		{
> 			printf("%d:%02d a.m.\n",hour,min);
> 		}
> 		else if(min==0&&hour==0)
> 		{
> 			printf("midnight\n");
> 		}
> 		else if(hour==0)
> 		{
> 			printf("%d:%02d a.m.\n",hour+12,min);
> 		}
> 		else if(hour==12&&min==0)
> 		{
> 			printf("noon\n");
> 		}
> 		else if(hour==12&&min!=0)
> 		{
> 			printf("%d:%02d p.m.\n",hour,min);
> 		}
> 	}
> 	return 0;
> }
area那地方错了