题解 | #数字三角形#

#include <stdio.h>

int main() {
    int n;
    while(scanf("%d",&n)!=EOF){
        int i,j;
        for(i=1;i<=n;i++){
            for(j=1;j<=i;j++){
                printf("%d ",j);
            }
            printf("\n");
        }
    }
    return 0;
}