#include <iostream> #include <iomanip> using namespace std; int main() { int N, i, j; cin >> N >> i >> j; // 1. 输出同一行的格子（行固定i，列1~N） for (int col = 1; col <= N; ++col) { cout << "(" << i << "," << col << ")"; } cout << endl; // 2. 输出同一列的格子（列固定j，行1~N） for (int row = 1; row <= N; ++row) { cout << "(" << row << "," << j << ")"; } cout << endl; // 3. 输出左上到右下对角线（行-列 = i-j，行升序） int diff = i - j; // 对角线的核心特征值 for (int row = 1; row <= N; ++row) { int col = row - diff; if (col >= 1 && col <= N) { // 列必须在合法范围 cout << "(" << row << "," << col << ")"; } } cout << endl; // 4. 输出左下到右上对角线（行+列 = i+j，行降序） int sum = i + j; // 对角线的核心特征值 for (int row = N; row >= 1; --row) { int col = sum - row; if (col >= 1 && col <= N) { // 列必须在合法范围 cout << "(" << row << "," << col << ")"; } } cout << endl; return 0; }