Link challenge :
- https://www.hackerrank.com/challenges/circular-palindromes/problem
- https://www.hackerrank.com/challenges/making-candies/problem
- https://www.hackerrank.com/challenges/string-reduction/problem
- https://www.hackerrank.com/challenges/maximum-subarray-sum/problem
- https://www.hackerrank.com/challenges/chief-hopper/problem