Leetcode 217. Contains Duplicate

文章作者：Tyan
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1. Description

Contains Duplicate

2. Solution

class Solution {
public:
    bool containsDuplicate(vector<int>& nums) {
        set<int> s(nums.begin(), nums.end());
        return s.size() != nums.size();
    }
};

Reference

1. https://leetcode.com/problems/contains-duplicate/description/