217. Contains Duplicate
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题目:https://leetcode.com/problems/contains-duplicate/
代码:
public class Solution { public boolean containsDuplicate(int[] nums) { Arrays.sort(nums); for(int i=0;i<nums.length-1;i++) { if(nums[i]==nums[i+1]) return true; } return false; }}用来sort,所以时间有点长是6ms
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