Hackerrank
Two cats and a mouse are at various positions on a line. You will be given their starting positions. Your task is to determine which cat will reach the mouse first, assuming the mouse doesn't move and the cats travel at equal speed. If the cats arrive at
Hackerrank
Monica wants to buy a keyboard and a USB drive from her favorite electronics store. The store has several models of each. Monica wants to spend as much as possible for the items, given her budget. Given the price lists for the store's keyboards and USB drives, and
Hackerrank
You are given a number of sticks of varying lengths. You will iteratively cut the sticks into smaller sticks, discarding the shortest pieces until there are none left. At each iteration you will determine the length of the shortest stick remaining, cut that length from each of the longer sticks
Hackerrank
Your local library needs your help! Given the expected and actual return dates for a library book, create a program that calculates the fine (if any). The fee structure is as follows: 1. If the book is returned on or before the expected return date, no fine will be charged
Hackerrank
Brie’s Drawing teacher asks her class to open their books to a page number. Brie can either start turning pages from the front of the book or from the back of the book. She always turns pages one at a time. When she opens the book, page is always
Hackerrank
John works at a clothing store. He has a large pile of socks that he must pair by color for sale. Given an array of integers representing the color of each sock, determine how many pairs of socks with matching colors there are. For example, there are socks with colors
Hackerrank
Anna and Brian are sharing a meal at a restaurant and they agree to split the bill equally. Brian wants to order something that Anna is allergic to though, and they agree that Anna won't pay for that item. Brian gets the check and calculates Anna's
Hackerrank
A strange grid has been recovered from an old book. It has columns and infinite number of rows. The bottom row is considered as the first row. First few rows of the grid are like this: .............. .............. 20 22 24 26 28 11 13 15 17 19 10 12 14 16
Hackerrank
You have been asked to help study the population of birds migrating across the continent. Each type of bird you are interested in will be identified by an integer value. Each time a particular kind of bird is spotted, its id number will be added to your array of sightings.
Hackerrank
Lily has a chocolate bar that she wants to share it with Ron for his birthday. Each of the squares has an integer on it. She decides to share a contiguous segment of the bar selected such that the length of the segment matches Ron's birth month and
Hackerrank
Maria plays college basketball and wants to go pro. Each season she maintains a record of her play. She tabulates the number of times she breaks her season record for most points and least points in a game. Points scored in the first game establish her record for the season,
Hackerrank
HackerLand University has the following grading policy: * Every student receives a in the inclusive range from to . * Any less than is a failing grade. Sam is a professor at the university and likes to round each student's according to these rules: * If the difference between the and the