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๐Ÿƒ‍โ™€๏ธprogrammers/Java

หšโ‚Šโœฉโ€งโ‚Š ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค java - ๊ณต ๋˜์ง€๊ธฐ หšโ‚Šโœฉโ€งโ‚Š

HYEJU01 2024. 5. 16. 16:23
์ฒด๊ฐ Level : โ˜… โ˜… โ˜†
Review:  ๋ฐฐ์—ด ๊ธธ์ด๋ฅผ ๋‚˜๋จธ์ง€ ์—ฐ์‚ฐ์„ ํ†ตํ•ด ์กฐ์ ˆํ•˜๋Š” ๋ฐฉ๋ฒ•
๋‚˜๋จธ์ง€ ์—ฐ์‚ฐ ํ™œ์šฉํ•˜๋Š”๊ฒŒ ์•„์ง๋„ ๋งŽ์ด ์–ด๋ ต๋‹ค ๐Ÿฅน๐Ÿฅน

 

๐Ÿ’ก ๋ฐฐ์—ด์—์„œ ํ•œ๋ช…์”ฉ ๊ฑด๋„ˆ๋›ฐ๋ฉฐ ๊ณต์„ ๋˜์งˆ ๋•Œ ์ฒ˜๋ฆฌํ•˜๋Š” ๋ฐฉ๋ฒ• (๋ฐฐ์—ด ์ฒ˜์Œ๊ณผ ๋์ด ๊ณ„์† ์ด์–ด์ ธ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•œ๋‹ค)

 

๋ฐฐ์—ด ๊ธธ์ด๋ฅผ ๋„˜์–ด๊ฐ€๋Š” ๊ฒฝ์šฐ

index ๊ฐ’์„ ์–ด๋–ป๊ฒŒ ์ฒ˜๋ฆฌํ•ด์•ผ๋˜๋‚˜ ๊ณ ๋ฏผํ–ˆ๋Š”๋ฐ 

๋‚˜๋จธ์ง€ ์—ฐ์‚ฐ์„ ํ•ด์ฃผ๋ฉด ๋˜๋Š”๊ฑฐ์˜€๋‹ค..!!! 

 

index ๊ธธ์ด๋ฅผ ๋ฐฐ์—ด ๊ธธ์ด๋กœ ๋‚˜๋ˆˆ ๋‚˜๋จธ์ง€๋ฅผ

๋‹ค์‹œ ์ธ๋ฑ์Šค์— ๋„ฃ์–ด์ฃผ๋ฉด์„œ k ๋ฒˆ๊นŒ์ง€ ์—ฐ์‚ฐํ•˜๋Š” ์‰ฌ์šด ๋ฌธ์ œ์˜€๋‹ค..!!!

 

 

class Solution {
    public int solution(int[] numbers, int k) {
        int answer = 0;
        int cnt = 0;
        int index = 0;
       
        while (cnt < k){
            if (index >= numbers.length){
                index %= numbers.length;
            }
            answer = numbers[index];
            index += 2;
            cnt ++;
        
        }
        
        
        return answer;
    }
}

[์‹คํŒจ]  1์ฐจ ์‹œ๋„ ใ… ใ… 

ํ…Œ์ŠคํŠธ ์ผ€์ด์Šค๋Š” ๋งž์ง€๋งŒ ์‹คํ–‰ํ•˜๋ฉด ๋‹ค ํ‹€๋ฆฐ๋‹ค ...

class Solution {
    public int solution(int[] numbers, int k) {
        int answer = 0;
        int cnt = 0;
        int i = 0;
        
        while(true) { 
            // ๋ฐฐ์—ด๊ธธ์ด๋ณด๋‹ค ๊ธธ์–ด์ง€๋Š” ๊ฒฝ์šฐ ์ดˆ๊ธฐํ™”
            if (i + 2 >= numbers.length-1) { 
               if (numbers.length % 2 == 0) { //์ง์ˆ˜๋ฉด
                   i = 0;
               }else { // ํ™€์ˆ˜๋ฉด
                    i = -1;
               }
            }

            i += 2; // ๋‹ค์Œ๋ฒˆํ˜ธ๋กœ
            cnt ++; // k๋ฒˆ ์ฆ๊ฐ€ 

            if (k == cnt){ 
                answer = i+1;
                break;
            }
        }
        
        return answer;
    }
}