Leetcode 4 Median of Two Sorted Arrays Java Solution

There are two sorted arrays nums1 and nums2 of size m and n respectively.

Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).

You may assume nums1 and nums2 cannot be both empty.

Example 1:

nums1 = [1, 3]
nums2 = [2]
The median is 2.0

Example 2:

nums1 = [1, 2]
nums2 = [3, 4]
The median is (2 + 3)/2 = 2.5

Solution 1:

class Solution {
    public double findMedianSortedArrays(int[] nums1, int[] nums2) {
        int totalLength = nums1.length+nums2.length;
        int[] helper = new int[totalLength];
        int count = 0;
        int left = 0;
        int right = 0;
        
        while(left<nums1.length && right<nums2.length && count<=((totalLength/2)+1)){
            if(nums1[left]<=nums2[right]){
                helper[count] = nums1[left];
                left++;
            }else{
                 helper[count] = nums2[right];
                right++;
            }
            count++;
        }
        
        while(count<=(totalLength/2)+1){
            if(left<nums1.length){
                   helper[count] = nums1[left];
                left++; 
            }else if(right<nums2.length){
                helper[count] = nums2[right];
                right++;
            }
            count++;
        }
        double median;
        int mid = totalLength/2;
        if(totalLength%2==0) {
            //System.out.println(helper[mid-1]+" "+helper[mid]);
             median = (double)(helper[mid-1]+helper[mid])/2;
        }else{
            median = (double)helper[mid];
        }
        return median;
    }
}