Computing the Longest Recurring Cycle in its Decimal Fraction Part
A unit fraction contains 1 in the numerator. The decimal representation of the unit fractions with denominators 2 to 10 are given: 1/2 = 0.5 1/3 = 0.(3) 1/4 …
Tag: hash map
Algorithms to Group Words by Anagrams
Given an array of strings, group anagrams together. Example: Input: , Output: , , ] Note: All inputs will be in lowercase. The order of your output does not …
How to Remove Zero Sum Consecutive Nodes from Linked List using Prefix Sum?
Given the head of a linked list, we repeatedly delete consecutive sequences of nodes that sum to 0 until there are no such sequences. After doing so, return the …
How to Design a Two-Sum Data Structure?
Design and implement a TwoSum class. It should support the following operations: add and find. add – Add the number to an internal data structure. find – Find if …
Algorithms to Check If Four Points can Make a Valid Square (C++ and Java)?
Given the coordinates of four points in 2D space, return whether the four points could construct a square. The coordinate (x,y) of a point is represented by an integer …