题解 | #打印乘法表#

#include <iostream>
using namespace std;

int main() {

    int n;
    cin >> n;
    if (n > 9 || n < 1) {
        cout << "输出错误";
    } 
    else 
    {
        for (int secondNum = 1; secondNum <= n; secondNum++) 
        {
            for (int firstNum = 1; firstNum <= n; firstNum++) {
                int j = secondNum * firstNum;
                if (secondNum >= firstNum) {
                    cout << firstNum << " * " << secondNum << " = " << j << "    ";
                }
            }
            cout << "\n";
        }
    }
    return 0;
    return 0;
}