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  1. #include <vector>
  2. #include <iostream>
  3.  
  4. void replace2(std::vector <int>& a, int n){
  5.    for (int i = n-1; i >= 0; --i){
  6.       if (a[i] == 2){
  7.          a.erase(a.begin() + i);
  8.          for(int j = 0; j < 4; ++j){
  9.             a.insert(a.begin() + i, 5);
  10.          }
  11.       }
  12.    }
  13. }
  14.  
  15. int main()
  16. {
  17.    std::vector<int> a{2, 2, 2};
  18.    replace2(a, 3);
  19.  
  20.    for(auto item : a )
  21.    {
  22.       std::cout << item;
  23.    }
  24.  
  25.    std::cout << std::endl;
  26. }
  27.  
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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555555555555
https://ideone.com/0Lip5j
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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