[C] 13240 - Chessboard

https://www.acmicpc.net/problem/13240

13240번: Chessboard

 

 

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
 
int main(void)
{
    int n, m;
    scanf("%d %d", &n, &m);
 
    for(int i = 0; i < n; ++i)
    {
        for(int j = 0;j < m; ++j)
        {
            if((i^j)&1) printf(".");
            else printf("*");
        }
        printf("\n");
    }
 
    return 0;
}