Company Wise Interview Questions

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Two Sum

Add Two Numbers

Longest Substring Without Repeating Characters

Median Of Two Sorted Arrays

Longest Palindromic Substring

Zigzag Conversion

Reverse Integer

String To Integer Atoi

Palindrome Number

Regular Expression Matching

Container With Most Water

Integer To Roman

Roman To Integer

Longest Common Prefix

3sum

Letter Combinations Of A Phone Number

4sum

Remove Nth Node From End Of List

Valid Parentheses

Merge Two Sorted Lists

Generate Parentheses

Merge K Sorted Lists

Swap Nodes In Pairs

Reverse Nodes In K Group

Remove Duplicates From Sorted Array

Remove Element

Find The Index Of The First Occurrence In A String

Divide Two Integers

Next Permutation

Longest Valid Parentheses

Search In Rotated Sorted Array

Find First And Last Position Of Element In Sorted Array

Search Insert Position

First Missing Positive

Minimum Window Substring

Subsets

Word Search

Remove Duplicates From Sorted Array Ii

Remove Duplicates From Sorted List Ii

Remove Duplicates From Sorted List

Largest Rectangle In Histogram

Reverse Linked List Ii

Binary Tree Inorder Traversal

Unique Binary Search Trees Ii

Validate Binary Search Tree

Same Tree

Symmetric Tree

Binary Tree Level Order Traversal

Binary Tree Zigzag Level Order Traversal

Maximum Depth Of Binary Tree

Construct Binary Tree From Preorder And Inorder Traversal

Construct Binary Tree From Inorder And Postorder Traversal

Balanced Binary Tree

Path Sum

Flatten Binary Tree To Linked List

Distinct Subsequences

Populating Next Right Pointers In Each Node

Pascals Triangle

Triangle

Best Time To Buy And Sell Stock

Best Time To Buy And Sell Stock Ii

Best Time To Buy And Sell Stock Iii

Binary Tree Maximum Path Sum

Valid Palindrome

Word Ladder

Longest Consecutive Sequence

Palindrome Partitioning

Palindrome Partitioning Ii

Copy List With Random Pointer

Binary Tree Preorder Traversal

Binary Tree Postorder Traversal

Lru Cache

Sort List

Max Points On A Line

Evaluate Reverse Polish Notation

Reverse Words In A String

Maximum Product Subarray

Find Minimum In Rotated Sorted Array

Min Stack

Intersection Of Two Linked Lists

Find Peak Element

Compare Version Numbers

Two Sum Ii Input Array Is Sorted

Majority Element

Excel Sheet Column Number

Consecutive Numbers

Employees Earning More Than Their Managers

Duplicate Emails

Department Highest Salary

Rotate Array

Number Of 1 Bits

House Robber

Binary Tree Right Side View

Number Of Islands

Bitwise And Of Numbers Range

Implement Trie Prefix Tree

Course Schedule Ii

Word Search Ii

House Robber Ii

Kth Largest Element In An Array

Contains Duplicate

Contains Duplicate Ii

Basic Calculator

Implement Stack Using Queues

Invert Binary Tree

Basic Calculator Ii

Majority Element Ii

Kth Smallest Element In A Bst

Power Of Two

Implement Queue Using Stacks

Number Of Digit One

Palindrome Linked List

Lowest Common Ancestor Of A Binary Search Tree

Lowest Common Ancestor Of A Binary Tree

Delete Node In A Linked List

Product Of Array Except Self

Sliding Window Maximum

Search A 2d Matrix Ii

Integer To English Words

H Index

Perfect Squares

Move Zeroes

Find The Duplicate Number

Game Of Life

Word Pattern

Find Median From Data Stream

Serialize And Deserialize Binary Tree

Longest Increasing Subsequence

Range Sum Query Immutable

Burst Balloons

Binary Tree Vertical Order Traversal

Remove Duplicate Letters

Coin Change

Odd Even Linked List

Reconstruct Itinerary

Counting Bits

Flatten Nested List Iterator

Integer Break

Reverse Vowels Of A String

Top K Frequent Elements

Design Tic Tac Toe

Intersection Of Two Arrays

Intersection Of Two Arrays Ii

Logger Rate Limiter

Largest Divisible Subset

Sum Of Two Integers

Guess Number Higher Or Lower

Insert Delete Getrandom O1

Ransom Note

Lexicographical Numbers

First Unique Character In A String

Split Array Largest Sum

Fizz Buzz

Add Strings

Maximum Xor Of Two Numbers In An Array

Longest Repeating Character Replacement

Non Overlapping Intervals

Path Sum Iii

Find All Duplicates In An Array

String Compression

Add Two Numbers Ii

Arithmetic Slices Ii Subsequence

Delete Node In A Bst

Sort Characters By Frequency

Next Greater Element I

Find Mode In Binary Search Tree

Next Greater Element Ii

Find Largest Value In Each Tree Row

Longest Palindromic Subsequence

Coin Change Ii

Continuous Subarray Sum

K Diff Pairs In An Array

Single Element In A Sorted Array

01 Matrix

Diameter Of Binary Tree

Boundary Of Binary Tree

Number Of Provinces

Next Greater Element Iii

Subarray Sum Equals K

Permutation In String

Managers With At Least 5 Direct Reports

Subtree Of Another Tree

Kill Process

Find Customer Referee

Erect The Fence

Design In Memory File System

Big Countries

Can Place Flowers

Construct String From Binary Tree

Maximum Product Of Three Numbers

Smallest Range Covering Elements From K Lists

Sum Of Square Numbers

Maximum Average Subarray I

Set Mismatch

Palindromic Substrings

Find K Closest Elements

Image Smoother

Valid Parenthesis String

Valid Palindrome Ii

Max Area Of Island

Subarray Product Less Than K

Find K Th Smallest Pair Distance

Accounts Merge

Find Pivot Index

Split Linked List In Parts

Min Cost Climbing Stairs

Reorganize String

Basic Calculator Iii

Kth Largest Element In A Stream

Binary Search

Swim In Rising Water

K Th Symbol In Grammar

Is Graph Bipartite

Cheapest Flights Within K Stops

Domino And Tromino Tiling

Custom Sort String

Rotate String

All Paths From Source To Target

Champagne Tower

Largest Triangle Area

Bus Routes

Race Car

Design Circular Queue

Flipping An Image

Shortest Path Visiting All Nodes

Maximize Distance To Closest Person

Peak Index In A Mountain Array

Car Fleet

All Nodes Distance K In Binary Tree

Middle Of The Linked List

Decoded String At Index

Fair Candy Swap

Fruit Into Baskets

Sort Array By Parity

Sum Of Subarray Minimums

Snakes And Ladders

Sort An Array

Maximum Sum Circular Subarray

Shortest Bridge

Knight Dialer

Fibonacci Number

K Closest Points To Origin

Subarray Sums Divisible By K

Squares Of A Sorted Array

Time Based Key Value Store

Minimum Cost For Tickets

Vertical Order Traversal Of A Binary Tree

Subarrays With K Different Integers

Cousins In Binary Tree

Rotting Oranges

Find The Town Judge

Find Common Characters

Check If Word Is Valid After Substitutions

Max Consecutive Ones Iii

Construct Binary Search Tree From Preorder Traversal

Pairs Of Songs With Total Durations Divisible By 60

Number Of Valid Subarrays

Number Of Enclaves

Remove Outermost Parentheses

Maximum Difference Between Node And Ancestor

Uncrossed Lines

Analyze User Website Visit Pattern

Robot Bounded In Circle

Partition Array For Maximum Sum

Last Stone Weight

Remove All Adjacent Duplicates In String

Longest String Chain

Greatest Common Divisor Of Strings

Project Employees I

Duplicate Zeros

Shortest Common Supersequence

Find In Mountain Array

Corporate Flight Bookings

Sequential Digits

Relative Sort Array

Element Appearing More Than 25 In Sorted Array

Longest Common Subsequence

Deepest Leaves Sum

Article Views I

Number Of Dice Rolls With Target Sum

Validate Binary Tree Nodes

Balance A Binary Search Tree

Constrained Subsequence Sum

Number Of Visible People In A Queue

Unique Number Of Occurrences

Remove All Adjacent Duplicates In String Ii

Last Person To Fit In The Bus

Longest Arithmetic Subsequence Of Given Difference

Count Vowels Permutation

Queries Quality And Percentage

Maximum Profit In Job Scheduling

Find Players With Zero Or One Losses

Maximum Length Of A Concatenated String With Unique Characters

Average Selling Price

Search Suggestions System

Minimum Number Of Taps To Open To Water A Garden

Find The City With The Smallest Number Of Neighbors At A Threshold Distance

Minimum Difficulty Of A Job Schedule

Count All Valid Pickup And Delivery Options

Minimum Number Of Steps To Make Two Strings Anagram

Longest Zigzag Path In A Binary Tree

Count Negative Numbers In A Sorted Matrix

Maximum Number Of Events That Can Be Attended

Kids With The Greatest Number Of Candies

Build Array Where You Can Find The Maximum Exactly K Comparisons

Maximum Number Of Vowels In A Substring Of Given Length

Pseudo Palindromic Paths In A Binary Tree

Maximum Product Of Two Elements In An Array

Shuffle The Array

The Kth Factor Of N

Longest Subarray Of 1s After Deleting One Element

Running Sum Of 1d Array

Minimum Number Of Days To Make M Bouquets

Path Crossing

Check If Array Pairs Are Divisible By K

Number Of Good Pairs

String Compression Ii

Minimum Suffix Flips

Matrix Diagonal Sum

Maximum Length Of Subarray With Positive Product

Make Sum Divisible By P

Minimum Time To Make Rope Colorful

Min Cost To Connect All Points

Customer Who Visited But Did Not Make Any Transactions

Special Array With X Elements Greater Than Or Equal X

Furthest Building You Can Reach

Minimum Deletions To Make Character Frequencies Unique

Minimum Operations To Reduce X To Zero

Determine If Two Strings Are Close

Check If Two String Arrays Are Equivalent

Average Time Of Process Per Machine

Count Of Matches In Tournament

Maximum Erasure Value

Calculate Money In Leetcode Bank

Invalid Tweets

Largest Submatrix With Rearrangements

Check If Array Is Sorted And Rotated

The Number Of Employees Which Report To Each Employee

Merge Strings Alternately

Recyclable And Low Fat Products

Check If One String Swap Can Make Strings Equal

Maximum Score Of A Good Subarray

Count Nice Pairs In An Array

Maximum Element After Decreasing And Rearranging

Frequency Of The Most Frequent Element

Sorting The Sentence

Minimize Maximum Pair Sum In Array

Remove All Occurrences Of A Substring

Redistribute Characters To Make All Strings Equal

Largest Odd Number In String

Nearest Exit From Entrance In Maze

Maximum Product Difference Between Two Pairs

Build Array From Permutation

Concatenation Of Array

Confirmation Rate

Remove Colored Pieces If Both Neighbors Are The Same Color

Partition Array Into Two Arrays To Minimize Sum Difference

Plates Between Candles

Rearrange Array Elements By Sign

Count Array Pairs Divisible By K

Number Of Ways To Select Buildings

Number Of Flowers In Full Bloom

Sum Of Total Strength Of Wizards

Add Two Integers

Design A Food Rating System

Make Array Zero By Subtracting Equal Amounts

Minimum Replacements To Sort The Array

Amount Of Time For Binary Tree To Be Infected

Minimum Amount Of Time To Collect Garbage

Minimum Adjacent Swaps To Make A Valid Array

Meeting Rooms Iii

Optimal Partition Of String

Maximum Number Of Books You Can Take

Maximum Sum Of Distinct Subarrays With Length K

Convert The Temperature

Minimum Penalty For A Shop

Difference Between Ones And Zeros In Row And Column

Maximum Count Of Positive Integer And Negative Integer

Count The Number Of Good Subarrays

Count The Number Of K Big Indices

Take Gifts From The Richest Pile

Counter

Extra Characters In A String

Buy Two Chocolates

Counter Ii

Allow One Function Call

Painting The Walls

Create Hello World Function

To Be Or Not To Be

Return Length Of Arguments Passed

Length Of The Longest Valid Substring

Count Pairs Whose Sum Is Less Than Target

Count Symmetric Integers

Make String A Subsequence Using Cyclic Increments

Furthest Point From Origin

Create A Dataframe From List

Minimum Number Of Operations To Make Array Empty

Maximum Number Of Alloys

Shortest And Lexicographically Smallest Beautiful String

Maximum Strong Pair Xor I

Find Words Containing Character

Minimum Number Of Pushes To Type Word I