88. Merge Sorted Array
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.
Note:
You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2. The number of elements initialized in nums1 and nums2 are m and n respectively.
合并两个有序数组到nums1里,不需要去重
C++(3ms):
1 class Solution { 2 public: 3 void merge(vector<int>& nums1, int m, vector<int>& nums2, int n) { 4 int i = m-1 ; 5 int j = n-1 ; 6 int k = m+n-1 ; 7 while(j >= 0){ 8 if (i >=0 && nums1[i] > nums2[j] ){ 9 nums1[k--] = nums1[i--] ; 10 }else{ 11 nums1[k--] = nums2[j--] ; 12 } 13 } 14 } 15 };
java(0ms):
1 class Solution { 2 public void merge(int[] nums1, int m, int[] nums2, int n) { 3 int i = m - 1 ; 4 int j = n - 1 ; 5 int k = m + n - 1 ; 6 while(j >= 0){ 7 if (i >= 0 && nums1[i] > nums2[j]) 8 nums1[k--] = nums1[i--] ; 9 else 10 nums1[k--] = nums2[j--] ; 11 } 12 } 13 }