粘墙三角形pta c语言

以下是粘墙三角形的两种实现方法，分别对应引用和引用的代码：

1. 引用的实现方法：

#include <iostream>
using namespace std;

int main() {
    int n;
    while (cin >> n) {
        for (int i = 1; i <= n; i++) {
            char a = 97;
            cout << a;
            for (int j = n - i; j >= 1; j--) {
                cout << " ";
            }
            char m = 97;
            for (int l = n - i + 1; l <= n; l++) {
                cout << m;
                m++;
            }
            cout << endl;
        }
    }
    return 0;
}

2. 引用的实现方法：

#include <iostream>
using namespace std;

int main() {
    int n;
    while (cin >> n) {
        for (int i = 1; i <= n; i++) {
            for (int j = n - i; j >= 1; j--) {
                cout << " ";
            }
            char m = 97;
            for (int l = n - i + 1; l <= n; l++) {
                cout << m;
                m++;
            }
            cout << endl;
        }
    }
    return 0;
}