Search in Rotated Sorted Array 2021-04-18 04:36

Problem Description

public int search(int[] nums, int target) {
    int left = 0;
    int right = nums.length - 1;
    while (left <= right) {
        int midIndex = (left + right) / 2;
        if (nums[midIndex] == target) {
            return midIndex;
        }
        if (nums[midIndex] < nums[right]) {
            if (nums[midIndex] < target && nums[right] >= target) {
                left = midIndex + 1;
            } else {
                right = midIndex - 1;
            }
        } else {
            if (nums[left] <= target && nums[midIndex] > target) {
                right = midIndex - 1;
            } else {
                left = midIndex + 1;
            }
        }
    }
    return -1;
}
Runtime Memory
0 ms 38.4 MB

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