魔法矩阵攻击效果模拟：C++实现字符矩阵修改

```cpp #include <iostream> #include <vector> using namespace std; int main() { int n, m; cin >> n >> m; vector<vector<char>> a(n, vector<char>(m)); // 输入矩阵 for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cin >> a[i][j]; } } int x, y; cin >> x >> y; // 调整为 0 索引 x--; y--; // 检查并修改上方三个位置 if (x > 0) { if (y > 0) a[x - 1][y - 1] = '0'; a[x - 1][y] = '0'; if (y < m - 1) a[x - 1][y + 1] = '0'; } // 输出修改后的矩阵 for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cout << a[i][j]; if (j < m - 1) cout << " "; } cout << endl; } return 0; } ``` ######[AI问答 | 336点数解答 | 2026-03-21 23:00:37]