[2d] 2438 : 별찍기 - 1

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

https://www.acmicpc.net/problem/2438