34.Find First and Last Position of Element in Sorted Array

# Medium

Find the first postion and last position separately

Java iteration

class Solution {
    public int[] searchRange(int[] nums, int target) {
        int[] res = {-1, -1};
        int left = 0;
        int right = nums.length - 1;
        while(left <= right) {
            int mid = left + (right - left)/2;
            if(nums[mid] >= target) {
                res[0] = mid;
                right = mid - 1;
            } else {
                left = mid + 1;
            }
        }
        
        left = 0;
        right = nums.length - 1;
        while(left <= right) {
            int mid = left + (right - left)/2;
            if(nums[mid] <= target) {
                res[1] = mid;
                left = mid + 1;
            } else {
                right = mid - 1;
            }
        }
        
        return res;
    }
}