[求助]打了半小时的代码，结果爆0（本地可过）

RT

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

int len;
string s;
char ch[15][1005];

int read()
{
    int sum = 0, w = 1;
    char ch = getchar();
    while (ch != '-' && !isdigit(ch))  ch = getchar();
    if (ch == '-')  w = -1, ch = getchar();
    while(isdigit(ch))  sum = (sum << 3) + (sum << 1) + ch - '0', ch = getchar();
    return sum * w;
}

void draw(int sx, int sy, int goal)
{
    if (goal == 0)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy] = ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 1)
    {
        ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 2)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 3)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 4)
    {
        ch[sx][sy] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 5)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 6)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2]= 'X';
        ch[sx + 3][sy] = ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 7)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 8)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy] = ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
    if (goal == 9)
    {
        ch[sx][sy] = ch[sx][sy + 1] = ch[sx][sy + 2] = 'X';
        ch[sx + 1][sy] = ch[sx + 1][sy + 2] = 'X';
        ch[sx + 2][sy] = ch[sx + 2][sy + 1] = ch[sx + 2][sy + 2] = 'X';
        ch[sx + 3][sy + 2] = 'X';
        ch[sx + 4][sy] = ch[sx + 4][sy + 1] = ch[sx + 4][sy + 2] = 'X';
    }
}

int main()
{
    memset(ch, '.', sizeof(ch));
    len = read();
    getline(cin, s);
    s = " " + s;
    for (int i = 1, ty = 1; i <= len; i++, ty += 4)
        draw(1, ty, s[i] - '0');
    for (int i = 1; i <= 5; i++)
    {
        for (int j = 1; j <= len * 4 - 1; j++)
            printf("%c", ch[i][j]);
        printf("\n");
    }
    return 0;
}