Arrays: Left Rotation

A left rotation operation on an array of size n shifts each of the array's elements 1 unit to the left. Given an integer, d, rotate the array that many steps left and return the result. Example: d=2 arr=[1,2,3,4,5] After 2 rotations, arr'=[3,4,5,1,2]. Function Description: Complete the rotateLeft function in the editor below. rotateLeft has the following parameters: 1. int d: the amount to rotate by 2. int arr[n]: the array to rotate Returns 1. int[n]: the rota

New Year Chaos

It is New Year's Day and people are in line for the Wonderland rollercoaster ride. Each person wears a sticker indicating their initial position in the queue from 1 to n. Any person can bribe the person directly in front of them to swap positions, but they still wear their original sticker. One person can bribe at most two others. Determine the minimum number of bribes that took place to get to a given queue order. Print the number of bribes, or, if anyone has bribed more than two people, pri

Minimum Swaps 2

You are given an unordered array consisting of consecutive integers [1, 2, 3, ..., n] without any duplicates. You are allowed to swap any two elements. Find the minimum number of swaps required to sort the array in ascending order. Example arr = [ 7 , 1 , 3 , 2, 4 , 5, 6 ] Perform the following steps: i arr swap (indices) 0 [7, 1, 3, 2, 4, 5, 6] swap (0,3) 1 [2, 1, 3, 7, 4, 5, 6] swap (0,1) 2 [1, 2, 3, 7, 4, 5, 6] swap (3,4) 3 [1, 2, 3, 4

Array Manipulation

Starting with a 1-indexed array of zeros and a list of operations, for each operation add a value to each of the array element between two given indices, inclusive. Once all operations have been performed, return the maximum value in the array. Example: n=10 queries=[[1,5,3], [4,8,7], [6,9,1]] Queries are interpreted as follows: a b k 1 5 3 4 8 7 6 9 1 Add the values of k between the indices a and b inclusive: index-> 1 2 3 4 5 6 7 8 9 10 [0,0,0, 0, 0,0,0

Super Reduced String

Reduce a string of lowercase characters in range ascii[‘a’..’z’]by doing a series of operations. In each operation, select a pair of adjacent letters that match, and delete them. Delete as many characters as possible using this method and return the resulting string. If the final string is empty, return Empty String Function Description Complete the superReducedString function in the editor below. superReducedString has the following parameter(s): string s: a string to reduce R