Monthly Archives: September 2014

Halloween Party Problem Solution in Lisp

The problem: Alex is attending a Halloween party with his girlfriend Silvia. At the party, Silvia spots a giant chocolate bar. If the chocolate can be served as only 1 x 1 sized pieces and Alex can cut the chocolate bar exactly K times, what is the maximum number of chocolate pieces Alex can cut […]

Solution to Gem Stones Problem Using Lisp

The problem: John has discovered various rocks. Each rock is composed of various elements, and each element is represented by a lowercase latin letter from ‘a’ to ‘z’. An element can be present multiple times in a rock. An element is called a ‘gem-element’ if it occurs at least once in each of the rocks. […]

Utopian Tree Solution Using Lisp

The following problem comes from HackerRank: —– The Utopian tree goes through 2 cycles of growth every year. The first growth cycle of the tree occurs during the monsoon, when it doubles in height. The second growth cycle of the tree occurs during the summer, when its height increases by 1 meter. Now, a new […]