编辑代码

//20052177黄晓纯
#include <stdio.h>

void print_pattern_iterative(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;
    printf("请输入目标行数：");
    scanf("%d", &n);
    print_pattern_iterative(n);
    return 0;
}