Maximum CPU Load Problem

Given a list of n Jobs with start time, end time and CPU load when it is active at any moment. If all the jobs are running at the same machine then find the maximum CPU load at any time, Also print the time at which the load was maximum. Input: Given a list of … Read more

Student Attendance Reward

In school a student gets rewarded if he has an attendance record without being absent for more than once or being late for 3 times continuously.  Given a student’s attendance record represented by a string. The record only contains the following three characters: ‘A’ : Absent. ‘L’ : Late. ‘O’ : On-Time. Check whether the … Read more

Count Maximum overlaps in a given list of time intervals

Interval is defined as [start, end]- the start of the interval to the end of the interval. Given the list of Intervals write an algorithm to find the maximum number of intervals overlapping at any point in time. Example: Given Intervals: [[0,2], [3,7], [1,5], [7,8], [4,6]] Maximum overlapping: 3 Explanation: Interval (4, 5) is overlapping … Read more

Remove Duplicates from Sorted Array

Given a sorted array of integers, write a program to remove duplicates in-place by modifying the given array such that all unique integers will be at the beginning of the array, and do not worry about other indexes after the new length. Example: Given Input: [1, 1, 2, 3, 3] Output: [1, 2, 3, 3, … Read more

Replace Elements with Greatest Element on Right

Given an array of numbers nums[], write ment a function to replace each element of the array with the greatest element present to its right side. Replace the last element with -1.  Example: Input: [4, 5, 2, 25, 13, 16, 8] Output: [25, 25, 25, 16, 16, 8, -1] Input: [4, 5, 2, 25, 13, … Read more

Count number of pairs which has sum equal to K

Given an array of integers and number K, write a program to find the number of pairs which has sum equal to K. Example: int input [] = {6, 3, 2, 9, 2, 2, 2, 1} int K = 4 Output: 7 int input [] = {5, 5, 5, 5} int K = 10 Output: … Read more

Count similar words in a given array

Given an array of strings, write a program to count all the similar words.  Similar words: Two words are similar if Has spaces in-between or at the end. Ex: “Apple” and ” A pp le” are similar. Has upper or lower cases. Ex: “APPle” and “apple” are similar. Has special characters. Ex: “app%^L&e” and “@@apple” … Read more

Maximum distance from the nearest person.

Given a bench with n seats and few people sitting, You are going to sit on a vacant seat such that the distance between you and the nearest person to you is maximum. On the beach, the occupied seats are represented by 1 and vacant seats are represented by 0. Example: Input: [1, 0, 1, … Read more

Sort 0’s, the 1’s and 2’s in the given array – Dutch National Flag algorithm | Set – 2

Given an array of numbers, that consists only of three types of integers, which are 0, 1, and 2. Write an algorithm to sort the given array. Example: Input: {2, 1, 2, 0, 1, 0} Output: {0, 0, 1, 1, 2, 2} Input: [0, 0, 2, 0, 2, 1, 0, 1, 2] Output: [0, 0, … Read more

Candidate Voting Problem

Given candidates standing for an election, design a data structure that can support the following modules –  1. voteCandidate (candidateName) – Add one vote for the candidate. 2. getTopK ( k ) – This will return top K candidates at that time. It can return more than k candidates if more candidates have the same … Read more