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Re: Best way to print all possible permutations of a string

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On 11/29/11 02:46 PM, sanket wrote:
> Hi all.
>
> I wrote a program to print all permutations of the letters of a
> string. Here are my two implementations

<snip>

> 2.
>
> #include<iostream>
> #include<algorithm>
> #include<cstdlib>
> using namespace std;
>
> int main(int argc, char ** argv)
> {
>          if(argc<  2) {cout<<  "Usage:\na.out<string>"<<
> endl;abort();}

Calling abort is rather drastic, why not just "return EXIT_FAILURE"?

>          string s(argv[1]);
>          sort(s.begin(), s.end());
>          cout<<  s<<  endl;
>          while(next_permutation(s.begin(), s.end())){cout<<  s<<
> endl;}
>          return 0;
> }
>
> They seem to be working well, but I was wondering if there was a
> better way to implement the same without using the STL function
> next_permutation.

s/STL/standard library/

Why would you want to avoid a library function that does what you want 
to do?

-- 
Ian Collins

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Thread

Best way to print all possible permutations of a string sanket <sanketsharma09@gmail.com> - 2011-11-28 17:46 -0800
  Re: Best way to print all possible permutations of a string Ian Collins <ian-news@hotmail.com> - 2011-11-29 15:01 +1300
    Re: Best way to print all possible permutations of a string sanket <sanketsharma09@gmail.com> - 2011-11-29 00:24 -0800
      Re: Best way to print all possible permutations of a string DDD <1983ddd@gmail.com> - 2011-11-29 20:55 -0800

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