88. Merge Sorted Array(js)
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88. Merge Sorted Array
Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1as one sorted array.
Note:
- The number of elements initialized in nums1 and nums2 are m and nrespectively.
- You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2.
Example:
Input: nums1 = [1,2,3,0,0,0], m = 3 nums2 = [2,5,6], n = 3 Output: [1,2,2,3,5,6]
题意:合并两个有序数组,将nums2各项往nums1中合并,nums1长度足够
代码如下:
var merge = function(nums1, m, nums2, n) { var i=m-1; var j=n-1; var k=m+n-1; while(i>=0 && j>=0){ if(nums1[i]>nums2[j]) nums1[k--]=nums1[i--]; else nums1[k--]=nums2[j--]; } while(j>=0){ nums1[k--]=nums2[j--] } };
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