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gyoogle avatar gyoogle commented on May 2, 2024

안녕하세요. 해당 코드가 조금 문제도 있는 것 같고, 이분 탐색으로 학습하기에 적절한 코드가 아닌 것 같아 좀 더 쉬운 코드로 수정하겠습니다. 감사합니다:)

public static int solution(int[] arr, int M) { // arr 배열에서 M을 찾자
	
    Arrays.sort(arr); // 정렬
	
    int start = 0;
    int end = arr.length - 1;
    int mid = 0;

    while (start <= end) {
        mid = (start + end) / 2;
        if (M == arr[mid]) {
            return mid;
        }else if (arr[mid] < M) {
            start = mid + 1;
        }else if (M < arr[mid]) {
            end = mid - 1;
        }
    }
    throw new NoSuchElementException("타겟 존재하지 않음");
}

from tech-interview-for-developer.

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