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๐Ÿƒ‍โ™€๏ธprogrammers/Java

ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค - java n ๋ฒˆ์งธ ์›์†Œ๋ถ€ํ„ฐ

HYEJU01 2024. 5. 1. 09:42

๐Ÿ’ก ์ข‹์€ ์ฝ”๋“œ

๊ฐ„๋‹จํ•˜๊ฒŒ ๋ฉ”์†Œ๋“œ๋ฅผ ์ด์šฉํ•ด์„œ ์‹œ์ž‘ - ๋ ๊ฐ’์„ ์ง€์ •ํ•ด์ค˜์„œ ์ถœ๋ ฅํ•  ์ˆ˜ ์žˆ๋‹ค.

 

๐Ÿ’ฌ  Arrays.copyOfRange(๋ฐฐ์—ด , ์‹œ์ž‘, ๋); 

import java.util.*;
class Solution {
    public int[] solution(int[] num_list, int n) {
        int[] a= Arrays.copyOfRange(num_list, n-1, num_list.length);
        return a;
    }
}

 

๐Ÿ’ก for ๋ฌธ์„ ์ด์šฉํ•ด์„œ ๋™์ ๋ฐฐ์—ด์— ์‚ฝ์ž…ํ•ด์ค€๋‹ค. 

n ์„ ์ธ๋ฑ์Šค ๊ฐ’์œผ๋กœ ์ธ์‹์‹œ์ผœ์ฃผ๋ ค๋ฉด n - 1 ์„ ํ•ด์ค˜์•ผ ํ•œ๋‹ค !!

import java.util.Arrays;
import java.util.ArrayList;

class Solution {
    public ArrayList <Integer> solution(int[] num_list, int n) {
        ArrayList <Integer> answer = new ArrayList <Integer>();
        
        for (int i = n-1; i < num_list.length; i++){
                answer.add(num_list[i]);
            }
        
        return answer;
    }
}