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  1.  
  2. #include <iostream>
  3. #include<bits/stdc++.h>
  4.  
  5. using namespace std;
  6.  
  7. void permute(string s,int l,int r)
  8. {
  9.  
  10.     if(l==r)
  11.     {
  12.     cout<<s<<"  ";
  13.     return;
  14.  
  15.     }
  16.     else
  17.     for(int i=l;i<r;i++)
  18.     {
  19.         swap(s[i],s[l]);
  20.         permute(s,l+1,r);
  21.         swap(s[i],s[l]);
  22.     }
  23. }
  24.  
  25. int main()
  26. {
  27.     permute("abc",0,3);
  28.     return 0;
  29. }
Success #stdin #stdout 0s 5548KB
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stdin
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45
stdout
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abc  acb  bac  bca  cba  cab
https://ideone.com/AlgWqq
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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