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25 lines
445 B
C++
25 lines
445 B
C++
#ifndef LEECODE_C_Q1346_H
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#define LEECODE_C_Q1346_H
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#include <map>
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using namespace std;
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class Q1346 {
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public:
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bool checkIfExist(vector<int>& arr) {
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unordered_map<int,int> m;
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for(auto i:arr){
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m[i] = 1;
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}
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for(auto [key,value]:m){
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if (m[key*2] == 1)
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{
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return true;
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}
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}
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return false;
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}
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};
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#endif LEECODE_C_Q1346_H |