Riello Power India Interview Questions and Answers

Q1. Car Pooling Capacity Problem

You are a cab driver with a car that initially has 'C' empty seats. The car moves in a straight line towards the forward direction only. Your job is to determine if it is possible t...read more

Q2. Convert BST to Greater Sum Tree

Given a Binary Search Tree (BST) of integers, your task is to convert it into a greater sum tree. In the greater sum tree, each node's value should be replaced with the sum of al...read more

Q3. Optimal Strategy for a Coin Game

You and your friend Ninjax are engaged in a strategic game involving coins. Ninjax arranges 'N' coins in a linear sequence.

The rules of the game are as follows:

1. Each coin ha...read more

Q4. K-th Ugly Ninja Problem Statement

Ninja is looking to hire 'ugly ninjas' whose numbers have all prime factors from a given list. Your task is to help him find the K-th ugly ninja.

You will be given an array PRI...read more

Q5. Distance To Nearest 1 in a Binary Matrix Problem

Given a binary matrix MAT containing only 0s and 1s of size N x M, find the distance of the nearest cell containing 1 for each cell in the matrix.

The distance i...read more

Q6. Count Pairs Divisible by K

You are given an array ARR and a positive integer K. Your task is to count the total number of pairs within the array whose sum is divisible by K.

Example:

Input:

ARR = [4, 3, 5, 1, 4...read more