题解 | #蛇形矩阵#

#include <iostream>
#include <vector>
using std::cin;
using std::cout;
using std::endl;
using std::vector;

int main(int argc, char* argv[]) {
    vector<vector<int>> vec(100,vector<int>(100));

    // 初始化第一列
    vec[0][0] = 1;
    for (int i = 1; i < 100; i++) {
        vec[i][0] = vec[i - 1][0] + i;
    }

    //基于第一列初始化所有行
    for (int j = 0; j < 100; j++) {
        for (int k = 1; k < 100; k++) {
            vec[j][k] = vec[j][k - 1] + k + j + 1;
        }
    }
    int num = 0;
    cin >> num;
    int num1 = num;

    // 输出蛇形矩阵
    for (int i = 0; i < num; i++) {
        for (int j = 0; j < num1; j++) {
            cout << vec[i][j] << " ";
        }
        num1--;
        cout << endl;
    }
    return 0;
}