独家题解

迷宫的前置题

#include<iostream>
using namespace std;
int dir[4][2]={{0,1},{1,0},{0,-1},{-1,0}};
int main(){
    int m,n,x,y,nx,ny;
    cin>>n>>m>>x>>y;
    for(int i=0;i<=3;i++){
    	nx=x+dir[i][0];ny=y+dir[i][1];
        if(nx>=1&&ny>=1&&nx<=n&&ny<=m) cout<<nx<<" "<<ny<<endl;
        else cout<<"NA"<<endl;
    }
    return 0;
}