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距离不需要浮点数，整数就可以了。浮点数判==0不行，要判断与0的差小于一个很小的数In Reply To:wrong answer!我受不了了！请大家帮我看看吧！ Posted by:00448122 at 2005-03-01 17:29:31 > #include <iostream>
> #include <cmath>
> using namespace std;
> int pace( char a[2], char b[2] )
> {
> int m = 1,n = 2;
> double p = static_cast<double>( b[0]-a[0] );
> double q = static_cast<double>( b[1]-a[1] );
> double x = fabs( p );
> double y = fabs( q );
> if( x==0&&y==0 )
> cout<<"0 "<<"0 "<<"0 "<<"0"<<endl;
> else if( x == y )
> cout<<x<<" "<<m<<" "<<n<<" "<<m<<endl;
> else if( x == 0 )
> cout<<y<<" "<<m<<" "<<m<<" Inf"<<endl;
> else if( y == 0 )
> cout<<x<<" "<<m<<" "<<m<<" Inf"<<endl;
> else cout<<( x>y?x:y )<<" "<<n<<" "<<n<<" Inf"<<endl;
> return 0;
> }
> int main()
> {
> int t;
> char a[2],b[2];
> cin>>t;
> for( int i=1; i<=t; i++ ){
> cin>>a>>b;
> pace( a,b );}
> return 0;
> }
>
>
>
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