Merge Sorted Array

Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.

The number of elements initialized in nums1 and nums2 are m and n respectively. You may assume that nums1 has enough space (size that is equal to m + n) to hold additional elements from nums2.

Example 1: 

Input: nums1 = [1,2,3,0,0,0], m = 3, nums2 = [2,5,6], n = 3
Output: [1,2,2,3,5,6]

Example 2: 

Input: nums1 = [1], m = 1, nums2 = [], n = 0
Output: [1]


Constraints:

  • 0 <= n, m <= 200
  • 1 <= n + m <= 200
  • nums1.length == m + n
  • nums2.length == n
  • -109 <= nums1[i], nums2[i] <= 109
Solution :

class Solution {
    public void merge(int[] nums1, int m, int[] nums2, int n) {
        int i;
        for(i=0;i<n;i++){
            nums1[m+i] = nums2[i];
        }
        Arrays.sort(nums1);
    }
}


Here, we provided you the most easiest approach using Java. In the problem, it is clearly mentioned that nums1 has enough spaces to store nums2 array. So, just store all elements of nums2 array to nums1. Finally sort the nums1 array.

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