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我的程序给---谁我看看!!!! why WA?

Posted by ync at 2005-08-01 15:28:57 on Problem 2501
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main()
{
	char ch[40];
	int h,m,s,speed,speed2,len,h1,m1,s1,h2,m2,s2;
    double dis,t;
	dis=0;  speed=speed2=0;
    while(gets(ch)!=NULL)
	{
	  len=strlen(ch);
	  if(len>10) 
	  {
         h2=(ch[0]-'0')*10+ch[1]-'0';
		 m2=(ch[3]-'0')*10+ch[4]-'0';
		 s2=(ch[6]-'0')*10+ch[7]-'0';
		 speed=atoi(ch+9); 
		if(speed2!=0)
   dis=dis+speed2*((h2-h)+(m2-m)/60.0+(s2-s)/3600.0);
		 h=h2; m=m2; s=s2;  speed2=speed;
		// printf("dis=%.2f\n",dis);
		 //printf("%d %d %d %d\n",h,m,s,speed);
	  }
	 else 
	 {

		h1=(ch[0]-'0')*10+ch[1]-'0';
		 m1=(ch[3]-'0')*10+ch[4]-'0';
		 s1=(ch[6]-'0')*10+ch[7]-'0';
         t=(h1-h)+(m1-m)/60.0+(s1-s)/3600.0;
		 dis=dis+t*speed; printf("%s %.2f km\n",ch,dis);
		 h=h1; m=m1; s=s1; 
		 
	 }
	}
	return 0;
}

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