codestudio

Data Structure

[Solved] Additive Number Contest Problem

Additive Number: Ninja developed his own coding platform and he wants all the questions of string to be uploaded on his platform. So he wants to create test cases of the string but as usual, he uses his own ninja…

Saurav Hathi
June 20, 2022

Data Structure

[Solved] Strobogrammatic Number ll Contest Problem

Strobogrammatic Number ll: Given a length ‘N’, you need to find all the strobogrammatic numbers of length ‘N’. A strobogrammatic number is a number that looks the same when rotated by 180. In other words, a number that on rotating…

Saurav Hathi
June 20, 2022

Data Structure

[Solved] K-th Symbol in Grammar Contest Problem

K-th Symbol in Grammar: You are given two integers, ‘N’ and ‘K’. Your task is to return the ‘K-th’ bit in row ‘N’ of the given sequence. Sequence: The first row contains a single bit ‘1’. In each subsequent row,…

Saurav Hathi
June 20, 2022

Data Structure

[Solved] Basketball Players Contest Problem

Basketball Players: There are ‘N’ basketball players, where ‘ith’ players have height ‘H[i]’. There is an array of pairs’ A’ where a pair (‘X’, ‘Y’) (where ‘X’ and ‘Y’ are not the same) denotes that player ‘X’ has won against…

Saurav Hathi
June 17, 2022

Data Structure

[Solved] Major Count Contest Problem

Major Count: Ninja A and Ninja B want to play a game on a graph. They have an undirected graph with ‘N’ vertices and each pair of vertices is connected by atmost one edge and there are no self-loops. There…

Saurav Hathi
June 17, 2022

Data Structure

[Solved] Reverse String Contest Problem

Reverse String: You are given a string ‘S’. You are also given ‘M’ integers in an array ‘A’. You perform ‘M’ operations on this string. The operations are given in an array ‘A’ of size ‘M’. You perform the operations…

Saurav Hathi
June 17, 2022

Data Structure

[Solved] Sunrise Contest Problem

Sunrise: Ninja is given an array ‘A’ of size ‘N’. Each element of the array represents the height of the ‘ith’ building (from left to right). He can choose any of the buildings. From that building, he wants to see…

Saurav Hathi
June 17, 2022

Data Structure

[Solved] Print Series Contest Problem

Print Series: You have given two positive integers N and K. Your task is to print a series of numbers i.e subtract K from N until it becomes 0 or negative then add K until it becomes N. You need…

Saurav Hathi
June 17, 2022

How To

[Solved] Create Sequence Contest Problem

Create Sequence: Ninja is good at numbers. So today his friend gave him a task that required him to find out numbers made of 2 and 5 only less than a given limit. Given an integer N, you need to…

Saurav Hathi
June 17, 2022

Data Structure

[Solved] Langford Pairing Contest Problem

Langford Pairing: You are given a positive integer N. Return a list of integers of size 2N containing all the integers from 1 to N (both inclusive) twice arranged according to Langford pairing. If no such pairing exists return -1 is…

Saurav Hathi
June 17, 2022