文章作者：Tyan
博客：noahsnail.com | CSDN | 简书
Contains Duplicate II
class 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;
}
};
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本文标题：Leetcode 219. Contains Duplicate
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