Dan is playing a video game in which his character competes in The Hurdle Race. Hurdles are of varying heights, and Dan has a maximum height he can jump. There is a magic potion he can take that will increase his maximum height by 1 unit for each dose. How many doses of the potion must he take to be able to jump all of the hurdles? Given an array of hurdle heights h, and an initial maximum height Dan …

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We define a magic square to be a matrix of distinct positive integers from 1 to n2 where the sum of any row, column, or diagonal of length n is always equal to the same number: the magic constant.You will be given a 3 X 3 matrix s of integers in the inclusive range [1,9]. We can convert any digit a to any other digit b in the range [1,9] at cost of |a-b|. For this Problem Forming a Magic Square Given s, convert it into a magic square at minimal cost. Print this cost on a new line.Note: The …

Ice Cream Parlor Hackerrank Each time Sunny and Johnny take a trip to the Ice Cream Parlor, they pool together m dollars for ice cream. On any given day, the parlor offers a line of n flavors. Each flavor, i, is numbered sequentially with a unique ID number from 1 to n and has a cost, ci, associated with it. Given the value of m and the cost of each flavor for t trips to the Ice Cream Parlor, help …

Given N integers, count the number of pairs of integers whose difference is K. Input Format The first line contains N and K. The second line contains N numbers of the set. All the N numbers are unique. Constraints 2<=N<=105 0<=K<=109 Each integer will be greater than 0 and at least K smaller than 231-1. Output Format An integer that tells the number of pairs of integers whose difference is K. <strong>Sample Input</strong> 5 2 1 5 3 4 2 …

At HackerLand University, a passing grade is any grade 40 points or higher on a 100 point scale. Sam is a professor at the university and likes to round each student’s grade according to the following rules: If the difference between the grade and the next higher multiple of 5 is less than 3, round to the next higher multiple of 5 If the grade is less than 38, don’t bother as it’s still a failing grade Automate the rounding …

Birthday Cake Candles Hackerrank problem solution -coderInme You are in-charge of the cake for your niece’s birthday and have decided the cake will have one candle for each year of her total age. When she blows out the candles, she’ll only be able to blow out the tallest ones. Your task is to find out how many candles she can successfully blow out. For example, if your niece is turning 4 years old, and the cake will have 4 candles of height 3, 2, 1, 3, she …

Angry Professor Hackerrank A Discrete Mathematics professor has a class of N students. Frustrated with their lack of discipline, he decides to cancel class if fewer than K students are present when class starts. Given the arrival time of each student, determine if the class is canceled. Input Format The first line of input contains T, the number of test cases. Each test case consists of two lines. The first line has two space-separated integers, N(students in the class) and …