A monotonic array is an array whose elements, from left to right, are entirely non-increasing, or entirely non-decreasing. Return true if the given array is monotonic.

Monotonic Arrays

Given a string of alphabets (from a to z), Print the count of the character appearing in the string right next to it. This is also called Run Length Encoding or String Compression.

String Compression

Given an array of integers, find three integers in the array that sum to a specific target number.

Three Number Sum

Given an array of sorted integers in ascending order, and a target integer, write a function to search target in nums array. If target exists, return the index of the target in the array, otherwise return -1.


Binary Search

Construct a Binary Search Tree and implement that implements insert, search, traverse and delete methods.

searching

Monotonic Arrays

String Compression

Three Number Sum

Binary Search

BST Construction

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Algochurn

Frontend Churn

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