How to generate all permutations of an array in sorted order?

by

In C++ you can use std::next_permutation to go through permutations one by one. You need to sort the characters alphabetically before calling std::next_permutation for the first time:

cin>>anagrama;
int len = strlen(anagrama);
sort(anagrama, anagrama+len);
do {
    cout << anagrama << endl;
} while (next_permutation(anagrama, anagrama+len));

Here is a demo on ideone.

If you must implement permutations yourself, you could borrow the source code of next_permutation, or choose a simpler way of implementing a permutation algorithm recursively.

More Related Contents:

  1. Algorithm (especially for c++) to show Every Permutation
  2. std::next_permutation Implementation Explanation
  3. Are there any better methods to do permutation of string?
  4. Implementation of Permutation, Combinations and PowerSet in C++ [duplicate]
  5. Why is '#' symbol used in C language's header ? Why not any other symbol ? [closed]
  6. Error while using if statements [closed]
  7. does cout before return statement of recursive function stops it?
  8. Why does C++ code for testing the Collatz conjecture run faster than hand-written assembly?
  9. Why can’t I make a vector of references?
  10. Why can’t C++ be parsed with a LR(1) parser?
  11. Generating random integer from a range
  12. Static linking vs dynamic linking
  13. Using custom std::set comparator
  14. How do I pass a unique_ptr argument to a constructor or a function?
  15. Creating a 3D sphere in Opengl using Visual C++
  16. Function pointers casting in C++
  17. What’s the meaning of * and & when applied to variable names?
  18. Parsing strings of user input using the cparse library from git
  19. error C2679: binary ‘
  20. C++ templates specialization syntax
  21. Why are some functions in not in the std namespace?
  22. How to read entire stream into a std::string?
  23. How do I load a shared object in C++?
  24. What does ‘const static’ mean in C and C++?
  25. What is the performance cost of having a virtual method in a C++ class?
  26. Returning to beginning of file after getline
  27. Do function pointers need an ampersand [duplicate]
  28. signal handler function in multithreaded environment
  29. Why does (i|o)fstream take a const char* parameter for a file name?
  30. Is it possible to have a pointer literal?

Leave a Comment