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Re:各位同学请帮我看一下,什么地方出了问题

Posted by apolor at 2004-05-17 08:36:58 on Problem 1657
In Reply To:Re:各位同学请帮我看一下,什么地方出了问题 Posted by:apolor at 2004-05-15 21:56:24
> 算法错了,看下面的:
> 
> #include<iostream.h>
> #include<math.h>
> 
> void main(){
> 	char x[25][8],y[25][8];
> 	int n,i,ax,ay;
> 	cin>>n;
> 	for(i=0;i<n;i++)
> 		cin>>x[i]>>y[i];
> 	for(i=0;i<n;i++){
> 		ax=abs(x[i][0]-y[i][0]);
> 		ay=abs(x[i][1]-y[i][1]);
> 		if(ax>ay)
> 			cout<<ax<<" ";
> 		else cout<<ay<<" ";
> 
> 		if(ax==ay||ax==0||ay==0)
> 			cout<<"1 ";
> 		else cout<<"2 ";
> 
> 		if(ax==0||ay==0)
> 			cout<<"1 ";
> 		else cout<<"2 ";
> 		
> 		if((ax+ay)%2==0)
> 			if(ax==ay)
> 				cout<<"1 "<<endl;
> 			else 
> 				cout<<"2 "<<endl;
> 		else cout<<"Inf "<<endl;
> 	}
> }
> 
没有考虑到起点和终点在同一处的情况。如果是在同一点的话,跳的步数全为0,这样我的程序终于通过了。不过我有一个疑问,就是起点和终点到底能否在同一处,如果可以的话,那么某一方就可以不走,而让对方一直走下去,有这个规则吗?所以我认为如果起点和终点在同一处,王、后、车、象所需的最少步数皆为2。

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