Problem B. Black and White

AC代码（我们用多的把少的包围起来）

Select Code

#include <bits/stdc++.h>
#include <iostream>
using namespace std;

int main()
{
    freopen("black.in", "r", stdin);
    freopen("black.out","w",stdout);
    int n ,m, i, t;
    scanf("%d %d",&n,&m);
    char c = '@', d = '.', t1;
    if(n>m)
    {
        t = n, n = m, m = t;
        t1 = c, c = d, d = t1;
    }
    printf("%d %d\n",2*m, 3);
    for(i = 0;i<(m-n);i++)
        printf("%c%c%c\n%c%c%c\n",c,c,c,c,d,c);
    for(i = 0;i<n;i++)
        printf("%c%c%c\n%c%c%c\n",c,c,c,d,d,d);
    return 0;
}