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  1. #include <string>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. string reverse(string& s,int length,int start=0){
  6.  
  7.     if (start>=length){
  8.         return s;
  9.     }
  10.     else{
  11.         char temp=s[length];
  12.         s[length]=s[start];
  13.         s[start]=temp;
  14.         reverse(s,--length,++start);
  15.     }return s;
  16. }
  17.  
  18. int main(void) {
  19.  
  20.     string a = "This is a long string";
  21.     cout<<reverse(a,a.length()-1,0);
  22. }
Success #stdin #stdout 0s 3228KB
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Standard input is empty
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gnirts gnol a si sihT
https://ideone.com/pJ3G9l
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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