整点C++来

#include<iostream>
using namespace std;

void matrix(int x) {
    int i = 1;
    for (; i <= x; i++) {
        int m = 1;
        int n = i;
        int j = 1;
        for (; j <= x; j++) {
            cout << m << "\t";
            if (--n > 0) { m++; }
        }
        cout << endl;
    }
}

int main() {
    int n;
    cin >> n;
    matrix(n);
    return 0;
}