POJ 1657 Distance on Chessboard 解题报告

POJ 1657 Distance on Chessboard 解题报告

编号:1657

 

考查点:简单计算题

 

思路:水题,有一点弯弯的就是象是如何走的,仔细观察可知:象只可以在横竖坐标之差为偶数的两点移动.看出来这点就相当easy

 

提交情况: 刷水题,一次AC.

 

Source Code

 


//POJ Grids 1657
#include <string>
#include 
<iostream>
using namespace std;

int main()
{
    
int t;cin>>t;
    
while (t--)
    {
        
string str1,str2;
        cin
>>str1>>str2;
        
int x = abs(str1[0]-str2[0]);
        
int y = abs(str1[1]-str2[1]);
        
if (x+y==0)
        {
            cout
<<"0 0 0 0"<<endl;
            
continue;
        }
        
if (x>y)
            cout
<<x<<" ";
        
else
            cout
<<y<<" ";
        
if (x==0||y==0||x==y)
            cout
<<1<<" ";
        
else
            cout
<<2<<" ";
        
if (x==0||y==0)
            cout
<<1<<" ";
        
else
            cout
<<2<<" ";
        
if (x==y)
            cout
<<1<<endl;
        
else
        {
            
if (abs(x-y)%2==0)
                cout
<<2<<endl;
            
else
                cout
<<"Inf"<<endl;
        }
    }
    
return 0;
}

总结:这道题我寒假刚开始的时候做过,现在再做一遍,感觉自己进步了很多,思路也开阔了,想当年这道题我用了四个小时,汗.

 

 

 

                                                       By   Ns517

                                                      Time 09.02.11

posted @ 2009-02-11 15:33  端木  阅读(812)  评论(0编辑  收藏  举报