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用别人的测试数据都正确,为何仍然WA?代码如下,请高人指点#include <iostream>
using namespace std;
int a[101][101],r,c,i,j,k;
int f(int x,int y)
{
if(x<1||x>r||y<1||y>c||a[x][y]==0)
return 0;
a[x][y]=0;
return 1+f(x-1,y)+f(x+1,y)+f(x,y-1)+f(x,y+1);
}
int main()
{
cin>>r>>c>>k;
while(k--){
//scanf("%d%d",&i,&j);
cin>>i>>j;
a[i][j]=1;
}
int max=-1,s;
for(i=1;i<=r;i++)
for(j=1;j<=c;j++){
if(a[i][j])
s=f(i,j);
if(max<s)
max=s;
}
cout<<max<<endl;
return 0;
}
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