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5votes
1answer
273views

Hackerrank: Breaking the records

I'm learning Clojure and am a rank n00b at it, trying to learn from books and online tutorials (but I'm sometimes concerned that I am picking up bad habits or at least not all the good habits). For ...
frIT's user avatar
  • 153
7votes
2answers
1kviews

Letter Combinations of a phone number using a Dictionary

Problem statement (online source) Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone ...
Shahin's user avatar
15votes
3answers
3kviews

Project Euler Problem #8: Largest product in a series

The four adjacent digits in the 1000-digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832. ...
user avatar
3votes
1answer
278views

Parsing n lines to count vowels - HackerEarth

I have written a haskell program for the following 'Code Monk' Challenge at HackerEarth. Here is the challenge description. Basically, we are looking for the number of vowels in a string. The first ...
Jonathan Chouraki's user avatar
5votes
3answers
5kviews

Using recursion to count substrings (with exceptions to the rule) in Java

I am going through the CodingBat exercises for Java. Here is the one I have just finished: Given a string, compute recursively the number of times lowercase hi ...
alanbuchanan's user avatar
2votes
1answer
1kviews

Cutting stock recursion

This problem is identical to the one here: Suppose that you have been assigned the job of buying the plumbing pipes for a construction project. Your foreman gives you a list of the varying ...
Abdoelrhman's user avatar

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