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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	std::string s("sfsfsgsdshhdfjj");
  7. 	s.reserve(s.length()*3/2);
  8. 	for (size_t i = 2; i < s.length(); i+=2)
  9. 		s.insert(i++, 1, '-');
  10.  
  11. 	cout << s << endl;
  12.  
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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sf-sf-sg-sd-sh-hd-fj-j
https://ideone.com/SAQCkz
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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