You are not logged in. Please login at to post your questions!


Help in solving "Counting permutations" problem from hackerearth?

Anyone please help me in solving THIS PROBLME based on counting no. of permutations.


Please don't propose the dp (coin change) problem, I have already solved it using that, I suspect there might be some trick to solve this question.

asked 22 Jul '17, 16:19

arpit728's gravatar image

accept rate: 10%

toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported
  • mathemetical formulas in Latex between $ symbol

Question tags:


question asked: 22 Jul '17, 16:19

question was seen: 354 times

last updated: 23 Jul '17, 09:26