题解 | #数字三角形#

#include<stdio.h>
int main()
{
    int n;
     while (scanf("%d", &n) != EOF) {
        for (int i = 1; i <=n; i++) {
            for (int j = 1; j <= i; j++) {
                printf("%d ",j);
            }
            printf("\n");
        }
    }
    
}