HOJ 2541 Merry Christmas

http://acm.hit.edu.cn/hoj/problem/view?id=2541

注意格式

#include<stdio.h>int main(){    int m, n, i, j;    while (scanf("%d %d", &m, &n) != EOF)    {        for (i = 1; i <= m; i++)        {            for (j = 0; j < m - i; j++)                putchar(' ');            for (j = 1; j <= 2 * i-1; j++)                printf(".");            printf("\n");        }        for (i = 1; i <= n; i++)        {            for(j = 0; j < m - 1; j++)                putchar(' ');            printf("|\n");        }    }    return 0;}