Cerinta completa Hackerland is a one-dimensional city with houses aligned at integral locations along a road. The Mayor wants to install radio transmitters on the roofs of the city’s houses. Each transmitter has a fixed range meaning it can transmit
HackerRank in a String!
Cerinta completa We say that a string contains the word hackerrank if a subsequence of its characters spell the word hackerrank. Remeber that a subsequence maintains the order of characters selected from a sequence. More formally, let be the respective
Grid Walking
Cerinta completa You are situated in an dimensional grid at position . The dimensions of the grid are . In one step, you can walk one step ahead or behind in any one of the dimensions. This implies that there
Gridland Provinces
Cerinta completa The Kingdom of Gridland contains provinces. Each province is defined as a grid where each cell in the grid represents a city. Every cell in the grid contains a single lowercase character denoting the first character of the
Goodland Electricity
Cerinta completa Goodland is a country with a number of evenly spaced cities along a line. The distance between adjacent cities is unit. There is an energy infrastructure project planning meeting, and the government needs to know the fewest number
GCD Matrix
Cerinta completa Alex has two arrays defined as and . He created an matrix, , where for each in . Recall that is the greatest common divisor of and . For example, if and , he builds like so: Alex’s
Gena Playing Hanoi
Cerinta completa The Tower of Hanoi is a famous game consisting of rods and a number of discs of incrementally different diameters. The puzzle starts with the discs neatly stacked on one rod, ordered by ascending size with the smallest
Floyd : City of Blinding Lights
Cerinta completa Given a directed weighted graph where weight indicates distance, for each query, determine the length of the shortest path between nodes. There may be many queries, so efficiency counts. For example, your graph consists of nodes as in
Fraudulent Activity Notifications
Cerinta completa HackerLand National Bank has a simple policy for warning clients about possible fraudulent account activity. If the amount spent by a client on a particular day is greater than or equal to the client’s median spending for a
Funny String
Cerinta completa In this challenge, you will determine whether a string is funny or not. To determine whether a string is funny, create a copy of the string in reverse e.g. . Iterating through each string, compare the absolute difference