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  1. #include <cstring>
  2. #include <iostream>
  3. #include <algorithm>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	string a="qwertyboy",b="";
  8. 	/*3 line method*/
  9. 	for(int i=a.size();i>=0;i--)
  10.         b+=a[i];
  11. 	a=b;
  12. 	cout<<a<<'\n';
  13. 	a="qwertyboy";
  14.  
  15. 	//	2- line method
  16.  
  17. 	for(int i=0,j=a.size()-1;i<j;i++,j--){
  18.       swap(a[i],a[j]); 
  19.      }
  20.   cout<<a<<'\n';
  21.   a="qwertyboy";
  22.   //	1-line method
  23.   reverse(a.begin(),a.end());
  24.   cout<<a<<'\n';
  25.  
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 3472KB
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stdin 
Standard input is empty
stdout 
yobytrewq
yobytrewq
yobytrewq
https://ideone.com/cnbl1G
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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