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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. void rek()
  4. {
  5.     char a;
  6.     if(cin>>a)
  7.     {
  8.     rek();
  9.     cout << a;
  10.     }
  11. }
  12. int main(){
  13.  
  14.     rek();
  15.  
  16. return 0;
  17. }
Success #stdin #stdout 0s 4172KB
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https://ideone.com/QxJUEy
language:
C++14 (clang 8.0)
created:
5 years ago
visibility:
public

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