fork download
copy 
  1. def choose(m)
  2.     self.factorial / (m.factorial * (self - m).factorial)
  3.   end
  4.   def fact(n)
  5.     (2..n).inject(1) { |f, n| f * n }
  6.   end
  7.  
  8. t = gets.to_i
  9. while t > 0 
  10.  
  11. s = gets.chomp
  12. n = s.length
  13. count = []
  14. (1..n).each { |i|
  15. count << s.count(s[i])
  16. }
  17. deno = 1
  18. (1..n).each{ |i|
  19. deno = deno * fact(count[i])
  20. }
  21. puts "#{fact(n)/deno}"
  22. t= t - 1
  23. end
Runtime error #stdin #stdout 0s 4760KB
comments (?)
stdin
copy 
4
ab
aa
aA
AAbaz
stdout
copy 
Standard output is empty
https://ideone.com/zL90V
language:
Ruby (ruby 2.5.5)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!