A. DZY Loves Chessboard1200 / 思维

Posted 2023-02-16 幽殇默

https://codeforces.com/problemset/problem/445/A

#include<bits/stdc++.h>
using namespace std;
int n,m;
string s[110];
int main(void)

	cin>>n>>m;
	for(int i=0;i<n;i++) cin>>s[i];
	for(int i=0;i<n;i++)
	
		for(int j=0;j<m;j++)
		
			if(s[i][j]=='.')
			
				if((i+j)%2) cout<<"W";
				else cout<<"B";
			else cout<<"-";
		
		cout<<endl;
	
	return 0;