Zoho

210+ posts

Last Updated: 14 November 2024

Given an array of positive integers arr[] of size n, the task is to find second largest distinct element in the array.Note: If the second la...read more

Arrays

Order-Statistics

Accolite

Zoho

Longest Palindromic Substring

Last Updated: 01 September 2024

Given a string str, the task is to find the longest substring which is a palindrome. If there are multiple answers, then return the first ap...read more

Subarray with Given Sum

Last Updated: 16 October 2024

Given a 1-based indexing array arr[] of integers and an integer sum. You mainly need to return the left and right indexes(1-based indexing) ...read more

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0/1 Knapsack Problem

Last Updated: 05 August 2024

Prerequisites: Introduction to Knapsack Problem, its Types and How to solve themGiven N items where each item has some weight and profit ass...read more

Print a given matrix in spiral form

Last Updated: 01 November 2024

Given an m x n matrix, the task is to print all elements of the matrix in spiral form.Examples: Input:matrix = {{1, 2, 3, 4}, ...read more

Basic Coding Problems

Longest Increasing Subsequence (LIS)

Last Updated: 24 October 2024

Given an array arr[] of size N, the task is to find the length of the Longest Increasing Subsequence (LIS) i.e., the longest possible subseq...read more

Find duplicates in O(n) time and O(n) extra space | Set 1

Last Updated: 14 October 2024

Given an array of n elements that contains elements from 0 to n-1, with any of these numbers appearing any number of times. Find these repea ...read more

Merge two sorted linked lists

Last Updated: 17 August 2024

Given two sorted linked lists consisting of N and Mnodes respectively. The task is to merge both of the lists (in place) and return the head ...read more

Reverse words in a string

Last Updated: 26 September 2024

Given a string str, the task is to reverse the order of the words in the given string. Notethatstrmay contain leading or trailing dots(.) or...read more

Valid Parentheses in an Expression

Last Updated: 16 September 2024

Given an expression string s, write a program to examine whether the pairs and the orders of "{", "}", "(", ")", "[", "]" are correct in the...read more

Reverse a Linked List

Last Updated: 26 August 2024

Given a linked list, the task is to reverse the linked list by changing the links between nodes.Examples:Input: Linked List = 1 - 2 - 3 - 4 ...read more

Find Middle of the Linked List

Last Updated: 04 September 2024

Given a singly linked list, the task is to find the middle of the linked list. If the number of nodes are even, then there would be two midd...read more

Maximum Depth or Height of Binary Tree

Last Updated: 27 September 2024

Given a binary tree, the task is to find the maximum depth or height of the tree. The height of the tree is the number of vertices in the tr...read more

Maximum Subarray Sum - Kadane's Algorithm

Last Updated: 11 September 2024

Given an array arr[], the task is to find the subarray that has the maximum sum and return its sum.Examples:Input: arr[] = {2, 3, -8, 7, -1,...read more

Pair with given Sum (Two Sum)

Last Updated: 22 October 2024

Given an array arr[] of n integers and a target value, the task is to find whether there is a pair of elements in the array whose sum is equ...read more

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