xdm，循环结构这个怎么打，c语言

Question

Answer 1

#include<stdio.h>
int main() {
    int n, num;
    scanf("%d", &n);
    for(int i = 0; i < n; ++i) {
        scanf("%d", &num);
        for(int j = 1; j <= num; ++j) {
            for(int k = 0; k < num - j; ++k)
                printf(" ");
            for(int k = 0; k < j * 2 - 1; ++k)
                printf("%d", j);
            if(j!=num) printf("\n"); 
        }
        if(i!=n-1) printf("\n"); 
    }
    return 0;
}