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Learn Something New Everyday

01 January 2018 / by André Maré


HackerRank is a technology company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications. HackerRank’s programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, JavaScript) and span multiple computer science domains.

I have completed a number of the HackerRank challenges and have listed my solutions below. There are many ways to solve these challenges as is with any programming challenge, hence I decided to list my solutions.

HackerRank Solution

The following section contains all the solutions for the HackerRank challenges.



  • Solve me first
  • Simple Array Sum
  • Staircase
  • Diagonal Difference
  • A Very Big Sum
  • Plus Minus
  • Time Conversion
  • Compare The Triples
  • Circular Array Rotation
  • Birthday Cake Candles