Intersection of Two Arrays-II - Leet Code Solution
Problem Statement Given two arrays, write a function to compute their…
Explore Posts for Coding Interview
Single Number - Leet Code Solution
Problem Statement Given a non-empty array of integers, every element appears…
Find if Array contains Duplicate Number - Leet Code Solution
Problem Statement Given an array of integers, find if the array contains any…
Maximum Length of Subarray With Positive Product - Leet Code Solution
Problem Statement Maximum Length of Subarray With Positive Product. Given an…
Rotate Array - Leet Code Solution
Problem Statement Given an array, rotate the array to the right by k steps…
Calculate Max Profit - Buy and Sell Stocks Multiple Times - Leet Code Solution
Problem Statement Say you have an array prices for which the ith element is the…
Remove Duplicates from Sorted Array - Leet Code Solution
Problem Statement Given a sorted array nums, remove the duplicates in-place such…
Binary Search Tree (BST) Data Structure
A Binary Search tree (BST) is a data structure which has two children nodes…
Binary Tree Data Structure
A Binary tree is a data structure which has two children nodes attached to it…
How to calculate First Common Ancestor of two Nodes in Binary Tree
First try to understand question. Its a binary tree, not a binary search tree…
What FAANG companies expect in their interview from candidates
Its every software engineer’s dream to work with the big FAANG companies…
Magical usage of Bitwise operators - Get optimized solutions for many arithmatic problems
Introduction I will list some of the interesting usage of bitwise operators…
Swap Nodes Pairs in Link List - Leet Code Solution
Problem Statement Given a linked list, swap every two adjacent nodes and return…
Three Sum Closest - Leet Code Solution
Problem Statement Given an array nums of n integers and an integer target, find…
Three Sum - Leet Code Solution
Problem Statement Given an array nums of n integers, are there elements a, b, c…
Convert Roman to Integer number - Leet Code Solution
Problem Statement Roman numerals are represented by seven different symbols: I…
Integer to Roman conversion - Leet Code Solution
Problem Statement Roman numerals are represented by seven different symbols: I…
Longest Common Prefix - Leet Code Solution
Problem Statement Write a function to find the longest common prefix string…
Container with Most Water - Leet Code Solution
Problem Statement Given n non-negative integers a1, a2, …, an , where each…
Check whether an integer number given is palindrome or not - Leet Code Solution
Problem Statement Determine whether an integer is a palindrome. An integer is a…
Remove nth Node from Last - Leet Code Solution
Problem Statement Given a linked list, remove the n-th node from the end of list…