Leetcode 219. Contains Duplicate II | | Leetcode 219. Contains Duplicate II 文章作者:Tyan博客:noahsnail.com | CSDN | 简书 1. Description 2. Solution12345678910111213class Solution {public: bool containsNearbyDuplicate(vector<int>& nums, int k) { unordered_map<int, int> m; for(int i = 0; i < nums.size(); i++) { if(m.find(nums[i]) != m.end() && (i - m[nums[i]] <= k)) { return true; } m[nums[i]] = i; } return false; }}; Reference https://leetcode.com/problems/contains-duplicate-ii/description/ 如果有收获,可以请我喝杯咖啡! 赏 微信打赏 支付宝打赏