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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	std::vector<int> v;
  7. 	v.push_back(5);
  8. 	v.emplace_back(v[0]);
  9.  
  10. 	std::cout << "sz: " << v.size() << " v[0]:" << v[0] << " v[1]:" << v[1];
  11. 	std::cout << std::endl;
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
stdout
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sz: 2 v[0]:5 v[1]:5
https://ideone.com/lyvMmw
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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