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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     string s1 = "brick";
  9.     string s2 = "block";
  10.     string s;
  11.  
  12.     s1.swap(s2);
  13.     s2.swap(s);
  14.     s.swap(s2);
  15.     cout << s1;
  16. }
  17.  
  18.  
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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block
https://ideone.com/dVW8Ub
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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