/Java/Search in rotated sorted array leetcode

Search in rotated sorted array leetcode

class Solution {
    public int search(int[] nums, int target) {
        int pivot = FindPivot(nums);
        int a_pointer = 0;
        int b_pointer = nums.length-1;
        if (target >= nums[pivot] && target <= nums[b_pointer] ){
            a_pointer = pivot;
        }else{
            b_pointer = pivot;
        }
        if (nums[a_pointer] == target) return a_pointer;
        if (nums[b_pointer] == target) return b_pointer;
        while(a_pointer <= b_pointer){
            int midpoint = a_pointer + (b_pointer - a_pointer) / 2;
            if (nums[midpoint] == target) return midpoint;
            if (nums[midpoint] < target) a_pointer = midpoint + 1;
            if (nums[midpoint] > target) b_pointer = midpoint - 1;
        }
        return -1;
    }
    
    public static int FindPivot(int[] nums){

        int start = 0;
        int end = nums.length-1;

        while (start < end){
            int mid = start + (end-start)/2;
            if (nums[mid] > nums[end]){
                start = mid+1;
            }else end = mid;
        }
        return start;
    }
}

Similar codes

4 votes339 views2 answers
How to add to a file in java
Java
0 vote323 views1 answer
How to convert string hashcode to color in java android
Java
0 vote346 views1 answer
What are construtcor java
Java
10 votes472 views3 answers
How to change default port in spring boot
Java Spring
0 vote383 views1 answer
How to find the angle of 2 coordinates java
Java
0 vote377 views1 answer
Java remove non numbers from string
Java
0 vote317 views1 answer
Java launch exe
Java
0 vote329 views1 answer
Java reverse loop
Java
0 vote294 views2 answers
We would like to make a member of a class can access in all subclasses regardless of what package the subclass is in. Which one of the following keywords would achieve this?
Java
0 vote365 views1 answer
How to make popupwindow background blur in android
Java