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26. Remove Duplicates from Sorted Array

时间:2017-10-18 13:15:39      阅读:165      评论:0      收藏:0      [点我收藏+]

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26. Remove Duplicates from Sorted Array

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.

Do not allocate extra space for another array, you must do this in place with constant memory.

For example,
Given input array nums = [1,1,2],

Your function should return length = 2, with the first two elements of nums being 1 and 2 respectively. It doesn‘t matter what you leave beyond the new length.

 

 

 
 1 /**
 2  * @param {number[]} nums
 3  * @return {number}
 4  */
 5 var removeDuplicates = function(nums) {
 6 
 7       if(nums.length === 0 || nums.length === 1){
 8           return nums;
 9       }
10     
11   
12      var pre = nums[0];
13      var i = 1;
14      while(i < nums.length){       
15          if(pre === nums[i]){
16              nums.splice(i,1);
17          }else{
18              
19              pre = nums[i++]; 
20          }    
21      }
22         
23     return nums.length;
24    
25 };

 

26. Remove Duplicates from Sorted Array

标签:function   script   spec   only   amp   elements   hat   oca   should   

原文地址:http://www.cnblogs.com/huenchao/p/7686013.html

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