矩形靶 蓝桥杯

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解题思路

这道题直接循环遍历处理数组元素即可。

代码

#include <iostream>
using namespace std;
int main()
{
    int m, n, a, b, i, j, x, y;
    cin >> m >> n >> a >> b;
    char c[600][600], d[600][600];
    for (i = 0; i < m; i++)
    {
        for (j = 0; j < n; j++)
        {
            cin >> c[i][j];
            d[i][j] = c[i][j];
        }
    }

    for (i = 0; i < m; i++)
    {
        for (j = 0; j < n; j++)
        {
            if (d[i][j] == '1')
            {
                for (x = i - a; x <= i + a; x++)
                {
                    for (y = j - b; y <= j + b; y++)
                    {
                        if (x == i && y == j || x < 0 || y < 0 || x >= m || y >= n)
                        {
                            continue;
                        }
                        c[x][y] = '1';
                    }
                }
            }
        }
    }
    for (i = 0; i < m; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << c[i][j];
        }
        cout << endl;
    }
    return 0;
}