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  1.     #include <unordered_set>
  2.     #include <vector>
  3.     #include <iostream>
  4.  
  5.     int main()
  6.     {
  7.        std::unordered_set<int> tempSet;
  8.        std::vector<int> vec { 55, 55, 55, 1, 23, 45 };
  9.        for ( auto& val : vec )
  10.        {
  11.           if (!tempSet.count(val)) 
  12.              std::cout << val << " "; 
  13.           tempSet.insert(val); 
  14.        }
  15.     }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin 
Standard input is empty
stdout 
55 1 23 45
https://ideone.com/bBkbmp
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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