백준 코딩테스트 3-9-2438 별 찍기 -1 코딩 문제 java로 푸는 방법

 

 

 

백준 코딩테스트 단계별로 풀어보기

3단계 반복문 9단계 2438 별 찍기 -1 문제입니다

 

 

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

2438번: 별 찍기 - 1

 

https://www.acmicpc.net/step

단계별로 풀어보기

 

 

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문제
첫째 줄에는 별 1개, 둘째 줄에는 별 2개, N번째 줄에는 별 N개를 찍는 문제

입력
첫째 줄에 N(1 ≤ N ≤ 100)이 주어진다.

출력
첫째 줄부터 N번째 줄까지 차례대로 별을 출력한다.

 

 

정답

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class Main {

 

public static void main(String[] args) throws IOException {

 

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

int N = Integer.parseInt(br.readLine());

br.close();

 

for (int i=1; i<=N; i++) {

for (int j=1; j<=i; j++) {

System.out.print("*");

}

System.out.println();

}

}

}

 

=>

이중for문으로 돌려주는데

i와 j값에 대한 범위가 원하는 바가 있다

 

 

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