Solution /* Solution to HackerRank: Vowels in the Back * URL: https://www.

Solution /* Solution to HackerRank: Balanced Strings * URL: https://www.hackerrank.com/contests/regular-expresso/challenges/balanced-strings */ "^(ab|ba)+$" possible strings: ababab abba babaab but not: a bab abbaaba

Solution /* Solution to HackerRank: Winning Tic Tac Toe * URL: https://www.

Solution Iterate through each city and check if it is already under range of previous tower.

Solution Sort the array of numbers Find the minimum difference between ith and (i+K-1)th element in each iteration.

Solution Iterate the sides in descending order Check if sides make a triangle by checking if sum of two sides is greater than third side .

Solution Parse input and build the tree by maintaining an index HashMap.

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Solution #1 Keep indexes of all numbers in a HashMap. Check if current maximum number is already at desired index i.

Solution Iterate through each house in a sorted order. Check if current house is in range of last transmitter.