编辑代码

#include <stdio.h>

void printNumbersRecursively(int n) {
    if (n > 0) {
        printNumbersRecursively(n - 1);
        for (int i = 0; i < n; ++i) {
            printf("%d ", n);
        }
        printf("\n");
    }
}

void printNumbersNonRecursively(int n) {
    for (int i = 1; i <= n; ++i) {
        for (int j = 0; j < i; ++j) {
            printf("%d ", i);
        }
        printf("\n");
    }
}

int main() {
    int n = 7;  //n
    printf("递归实现：\n");
    printNumbersRecursively(n);
    printf("\n非递归实现：\n");
    printNumbersNonRecursively(n);
    return 0;
}