prius / learning

Leetcode solutions, contests and some other algorithm-related stuff

Grind tracking

This is the repo where I store every solved problem I encountered during my CS learning process. It has hundreds of solved leetcode tasks as well as tasks from some online competitions. You'll find the list below. Also there are some implemented algorithms from CLRS.

AdventOfCode

Task	Solution
2021 Day 1	Part 1 Python Part 2 Python
2022 Day 1	Part 1 Golang Part 2 Golang
2022 Day 2	Part 1 Golang Part 2 Golang
2022 Day 4	Python
2022 Day 5	Python
2022 Day 6	Golang
2022 Day 7	Golang
2022 Day 8	Golang

BinarySearch

Task	Solution
Nearest Bus Stop From a House	Python
Non-Adjacent Combination Sum	Python
Sublist with Largest Min-Length Product	Python
Smallest Number With No Adjacent Duplicates	Python

Google Codejam

Task	Solution
Qualification Round 2020: Vestigium	Python
Qualification Round 2020: Nesting Depth	Python
Qualification Round 2020: Parenting Partnering Returns	Python
Qualification Round 2020: ESAb ATAd	Python
Qualification Round 2020: Indicium	Python
Round 1B: 2020: Expogo	Python
Qualification Round 2020: Punched Cards	Python

Facebook Hacker Cup

Task	Solution
Qualification Round 2020: Travel Restrictions	Python
Qualification Round 2020: Alchemy	Python
Qualification Round 2020: Timber	Python
Qualification Round 2020: Running on Fumes - Chapter 1	Python
Qualification Round 2020: Running on Fumes - Chapter 2	Python

CLRS

• Binary search
• Binary tree
• Deque
• Heap
• KMP algorithm
• Linear search
• Linked List
• Merge Sort
• Object array representation
• Helper to print binary tree
• Queue
• Two stacks queue
• Really simple sort
• Selection sort
• Stack
• Two queues stack
• Tree
• 22.1-3
• 32.3-1

Pramp

• Array index and element equality
• Array of array products
• Busiest time in the mall
• Largest smaller BST key

Hackerrank

Task	Solution
2D Array - DS	Python
Climbing the Leaderboard	Python
Counting Valleys	Python
Arrays: Left Rotation	Python
Sorting: Bubble Sort	Python
Merge Sort	Python
Jumping on the Clouds	Python
Forming a Magic Square	Python
Repeated String	Python
Sales by Match	Python

C++ (Yandex course on coursera)

• Week 1
• Week 2

Desing patterns

• Decorator
• Observer

Yandex mentor qualification competition

Отборочное задание для наставников курса "Алгоритмы для разработчиков"

Task	Solution
A. Палиндромная конкатенация	Python Golang
B. Расстановка скобок	Python Golang
C. Путь по компонентам	Python Golang

Codeforces

Task	Solution
103715: A	Python
103715: B	Python
103715: C	Python
103715: D	Python

Presentations (drafts)

• Quicksort

Leetcode

Task	Solution
Reorganize String	Python Golang
Sequence Reconstruction	Python
Reduce Array Size to The Half	Python
Maximum Repeating Substring	Python
Distribute Repeating Integers	Python
Best Time to Buy and Sell Stock with Cooldown	Python
Pairs of Songs With Total Durations Divisible by 60	Python
4Sum II	Python
Partition Array for Maximum Sum	Python
K-th Symbol in Grammar	Python
Detect Capital	Python
3Sum With Multiplicity	Python
Insert Delete GetRandom O(1) - Duplicates allowed	Python
Construct K Palindrome Strings	Python
Mean of Array After Removing Some Elements	Python
Verifying an Alien Dictionary	Python
Add Bold Tag in String	Python
Counting Bits	Python
Rabbits in Forest	Golang
Reordered Power of 2	Python
Vowel Spellchecker	Python
Count and Say	Python
Occurrences After Bigram	Python
Evaluate Division	Python
Element Appearing More Than 25% In Sorted Array	Python
Number of Recent Calls	Python
Largest Divisible Subset	Python
Number of Sets of K Non-Overlapping Line Segments	Python
Candy	Python
Contiguous Array	Python
Remove Linked List Elements	Python
Search in Rotated Sorted Array II	Python
Best Time to Buy and Sell Stock II	Python
The Most Similar Path in a Graph	Python
Stone Game	Python
Cheapest Flights Within K Stops	Python
Maximum Product of Splitted Binary Tree	Python
Remove Nth Node From End of List	Python
Longest Arithmetic Subsequence	Python
Longest Palindromic Subsequence	Python
Tiling a Rectangle with the Fewest Squares	Python
Minimum Cost Tree From Leaf Values	Python
Number of Connected Components in an Undirected Graph	Python Golang
Sliding Window Maximum	Python
Dota2 Senate	Python
Count of Range Sum	Python
Letter Tile Possibilities	Python
Reconstruct Itinerary	Python
Maximum Length of Repeated Subarray	Python
Sequential Digits	Python
Nested List Weight Sum	Python
Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Python
Online Stock Span	Python Golang
Minimum Depth of Binary Tree	Python
Strong Password Checker	Python
Number Complement	Golang
Palindrome Partitioning II	Python
Contains Duplicate III	Python
3Sum	Python
Maximize Distance to Closest Person	Python
Binary Search Tree Iterator	Python
Reverse Words in a String	Python
Minimum Value to Get Positive Step by Step Sum	Python
Circle and Rectangle Overlapping	Python
Synonymous Sentences	Python
4 Keys Keyboard	Python
The Maze II	Python
Check If a String Contains All Binary Codes of Size K	Python
Best Sightseeing Pair	Python
First Bad Version	Python
Reveal Cards In Increasing Order	Python
Moving Average from Data Stream	Python
String to Integer (atoi)	Python
Backspace String Compare	Python
Invert Binary Tree	Python Golang
To Lower Case	Python
Number of Distinct Islands II	Python
Divide Two Integers	Python
Subarray Product Less Than K	Python
N-Queens	Python Golang
Asteroid Collision	Python
Keys and Rooms	Python Golang
Advantage Shuffle	Python
Average Waiting Time	Python
Pacific Atlantic Water Flow	Python
Get Maximum in Generated Array	Python
Maximum Gap	Python
Valid Parentheses	Python
All Paths From Source to Target	Python Golang
Coordinate With Maximum Network Quality	Python
Diagonal Traverse	Python
Binary Search	Python
Determine if Two Strings Are Close	Python Golang
3Sum Closest	Python
Next Greater Node In Linked List	Python
Sqrt(x)	Python
4Sum	Python
Reach a Number	Python
Best Time to Buy and Sell Stock with Transaction Fee	Python
Swapping Nodes in a Linked List	Python
Maximum Sum BST in Binary Tree	Python
Valid Boomerang	Python
Sum of Distances in Tree	Python
Check Completeness of a Binary Tree	Python
Combinations	Python
Array Nesting	Python
Combination Sum III	Python
Longest Palindrome	Python
Linked List Cycle II	Python
String Transforms Into Another String	Python
Single Number	Python
Generate Parentheses	Python Golang
Distribute Candies	Python
Word Pattern	Python
Design Search Autocomplete System	Python
Median of Two Sorted Arrays	Python
Paint House II	Python
Find And Replace in String	Python
Summary Ranges	Python
Implement strStr()	Python
Tallest Billboard	Python
Length of Longest Fibonacci Subsequence	Python
Valid Palindrome II	Python
Beautiful Arrangement	Python
Flood Fill	Python
Maximum Binary String After Change	Python
Sum Root to Leaf Numbers	Python
Create Sorted Array through Instructions	Python
Odd Even Jump	Python
Largest Number	Python
Reverse String II	Python
Peak Index in a Mountain Array	Python
Longest Increasing Path in a Matrix	Python
Minimum Height Trees	Python
Sort Integers by The Power Value	Python
Numbers At Most N Given Digit Set	Python
Filling Bookcase Shelves	Python
Minimum Domino Rotations For Equal Row	Python
Minimum ASCII Delete Sum for Two Strings	Python
Consecutive Numbers Sum	Python
Binary Tree Zigzag Level Order Traversal	Python
Sudoku Solver	Python
Moving Stones Until Consecutive II	Python
Longest Duplicate Substring	Python
Product of Array Except Self	Python
Minimum Falling Path Sum	Python
Valid Palindrome	Python
Longest Happy String	Python
One Edit Distance	Python
Minimum Window Substring	Python
Longest ZigZag Path in a Binary Tree	Python
Longest Arithmetic Subsequence of Given Difference	Python
Squirrel Simulation	Python
Random Point in Non-overlapping Rectangles	Python
Compare Version Numbers	Python
Longest Harmonious Subsequence	Python
N-Queens II	Golang
Search a 2D Matrix	Python
Roman to Integer	Python
Reverse Words in a String II	Python
Closest Binary Search Tree Value	Python
Longest Common Subsequence	Python
Can Convert String in K Moves	Python
Vertical Order Traversal of a Binary Tree	Python
Path With Maximum Minimum Value	Python
Populating Next Right Pointers in Each Node	Python
Minimum Difficulty of a Job Schedule	Python
Concatenation of Consecutive Binary Numbers	Python
Minimum Cost For Tickets	Python
Fancy Sequence	Python
Robot Room Cleaner	Python
Guess Number Higher or Lower	Python
Count of Smaller Numbers After Self	Python
Longest Increasing Subsequence	Python
Shortest Word Distance	Python
Toeplitz Matrix	Python
Rotate List	Python
Swap Nodes in Pairs	Python
Insert Delete GetRandom O(1)	Python
Smallest Common Region	Python
Minimum Cost to Hire K Workers	Python
Unique Morse Code Words	Python
Find Median from Data Stream	Python
Copy List with Random Pointer	Python
Generate Random Point in a Circle	Python
Maximum Average Subarray II	Python
Count Number of Teams	Golang
Broken Calculator	Python
Koko Eating Bananas	Python
Word Subsets	Python
Critical Connections in a Network	Python
Add Two Numbers II	Python
Lowest Common Ancestor of a Binary Tree	Python
Pascal's Triangle II	Python
Walking Robot Simulation	Python
First Unique Number	Python
Ransom Note	Golang
Maximum Number of Balloons	Python
Encode Number	Python
K-Concatenation Maximum Sum	Python
Leftmost Column with at Least a One	Python
Insert Interval	Python
Queue Reconstruction by Height	Python Golang
Find in Mountain Array	Python
Rotate Image	Python
Stone Game II	Python
Missing Number	Python
Add Two Numbers	Python
Buddy Strings	Python
Minesweeper	Python
Redundant Connection II	Python
Best Time to Buy and Sell Stock IV	Python
Flatten Nested List Iterator	Python
Squares of a Sorted Array	Python
Leaf-Similar Trees	Python Golang
Plus One	Python Golang
Distinct Subsequences	Python
Parallel Courses II	Python
Set Matrix Zeroes	Python
Majority Element	Golang
Unique Paths	Python
Find All Anagrams in a String	Golang
H-Index II	Golang
Number of Islands	Python
Fibonacci Number	Python
Design Underground System	Python
Sum of Root To Leaf Binary Numbers	Python
Validate IP Address	Python
Possible Bipartition	Python Golang
Insertion Sort List	Python Golang
Minimum Path Sum	Python
Camelcase Matching	Python
Sort List	Python
Range Sum of BST	Python
Split Array Largest Sum	Python
Insert into a Binary Search Tree	Python
Boats to Save People	Python
Circular Array Loop	Python
Find Right Interval	Python
Single Number III	Python
Word Squares	Python
Intersection of Two Linked Lists	Python
Balanced Binary Tree	Python
Binary Tree Vertical Order Traversal	Python
Time Needed to Inform All Employees	Python
Print Immutable Linked List in Reverse	Python Golang
Maximum Length of Pair Chain	Python
Find Minimum in Rotated Sorted Array II	Python
Remove Element	Python
Two Sum III - Data structure design	Python
Flatten a Multilevel Doubly Linked List	Python
Minimum Swaps to Group All 1's Together	Python
Single Number II	Python
Stream of Characters	Python
Maximum Points You Can Obtain from Cards	Python
Maximum Difference Between Node and Ancestor	Python
Decode Ways II	Python
Binary Tree Coloring Game	Python
Pow(x, n)	Python Golang
Kth Missing Positive Number	Python
Maximum Level Sum of a Binary Tree	Python
Count Complete Tree Nodes	Python
Rotting Oranges	Python
Simplify Path	Python
Search in a Binary Search Tree	Python
Reverse Nodes in k-Group	Python
Longest Turbulent Subarray	Python
Thousand Separator	Python
Maximum Binary Tree	Python
Remove Outermost Parentheses	Python
House Robber III	Python
Remove Duplicates from Sorted List	Python
Repeated Substring Pattern	Python
Find Elements in a Contaminated Binary Tree	Python
Substring with Concatenation of All Words	Python
Trim a Binary Search Tree	Python
Count Servers that Communicate	Python
Running Sum of 1d Array	Python
Pascal's Triangle	Python
Kth Largest Element in an Array	Python
Interleaving String	Python
Find Minimum in Rotated Sorted Array	Python
The K Weakest Rows in a Matrix	Python
Find Nearest Right Node in Binary Tree	Python
Min Stack	Python
Partition Equal Subset Sum	Python
Binary Search Tree to Greater Sum Tree	Python
Make Array Strictly Increasing	Python
Find Peak Element	Python
Campus Bikes	Python
Check If All 1's Are at Least Length K Places Away	Python
Palindrome Pairs	Python
Shortest Way to Form String	Python
Surrounded Regions	Python
Recover Binary Search Tree	Python
Count Numbers with Unique Digits	Python
Peeking Iterator	Python
Two Sum Less Than K	Python
Serialize and Deserialize Binary Tree	Python
Maximum Distance in Arrays	Python
Sort Characters By Frequency	Python
Integer to English Words	Python
Design Circular Queue	Python
Find Duplicate Subtrees	Python
Find K Closest Elements	Python
Longest Substring Without Repeating Characters	Python
Combination Sum	Python
Student Attendance Record I	Python
Burst Balloons	Python
Accounts Merge	Python
Shortest Distance from All Buildings	Python
The Maze	Python
Find Mode in Binary Search Tree	Python
Path Sum IV	Golang
Longest Absolute File Path	Python
Isomorphic Strings	Python
Remove Duplicate Letters	Python
Scramble String	Python
Network Delay Time	Python
Valid Palindrome III	Python
Minimize Deviation in Array	Python
Power of Two	Golang
Meeting Rooms	Python
Can Place Flowers	Python
Mirror Reflection	Python
Triangle	Python
Detect Cycles in 2D Grid	Python
Brace Expansion	Python
All Paths from Source Lead to Destination	Python
Find Root of N-Ary Tree	Python
Similar String Groups	Python
Merge k Sorted Lists	Python
Longest Mountain in Array	Python
Palindrome Number	Python
Score of Parentheses	Python
Student Attendance Record II	Python
Binary Tree Pruning	Golang
Find Leaves of Binary Tree	Python
Lowest Common Ancestor of a Binary Search Tree	Python
Construct Binary Tree from String	Python
Largest Sum of Averages	Python
Largest Plus Sign	Python
Number of Good Ways to Split a String	Python
Robot Bounded In Circle	Python
Predict the Winner	Python
Design Phone Directory	Python
Trapping Rain Water	Python
Serialize and Deserialize BST	Python
Subarray Sum Equals K	Python
Longest Palindromic Substring	Python Golang
Frog Jump	Python
Subsets	Python Golang
Daily Temperatures	Python
Defuse the Bomb	Python
Combination Sum IV	Python
Divisor Game	Python
Range Sum Query 2D - Mutable	Python
Remove K Digits	Python Golang
Increasing Triplet Subsequence	Python
Exam Room	Python
Smallest Sufficient Team	Python
Paint Fence	Python
Single Element in a Sorted Array	Python
Word Ladder II	Python
Flower Planting With No Adjacent	Python
Length of Last Word	Python
Linked List Random Node	Python
Remove Duplicates from Sorted Array II	Python
Coin Change	Python
Read N Characters Given Read4	Python
Non-decreasing Array	Python
Champagne Tower	Python
Jewels and Stones	Python
Find and Replace Pattern	Golang
Sliding Window Median	Python
Course Schedule II	Python
Maximum Product of Three Numbers	Python
Permutation in String	Python
Find K Pairs with Smallest Sums	Python
Convert BST to Greater Tree	Python
Power of Four	Golang
Valid Mountain Array	Python
Smallest Range II	Python
Uncrossed Lines	Python
Path With Minimum Effort	Python
Prison Cells After N Days	Python
Set Mismatch	Python
Permutation Sequence	Python
Top K Frequent Words	Python
Minimum Score Triangulation of Polygon	Python
Reverse Linked List	Python
Jump Game IV	Python
Subarray Sums Divisible by K	Python
House Robber II	Python
Find Two Non-overlapping Sub-arrays Each With Target Sum	Python
Longest Valid Parentheses	Python
Complement of Base 10 Integer	Python
Count Square Submatrices with All Ones	Golang
Spiral Matrix	Python
Shortest Unsorted Continuous Subarray	Python
Reverse String	Python
Grumpy Bookstore Owner	Python
Clumsy Factorial	Python
License Key Formatting	Python
Inorder Successor in BST II	Python
Minimum Number of Removals to Make Mountain Array	Python
Number of Steps to Reduce a Number to Zero	Python
Is Subsequence	Golang
Populating Next Right Pointers in Each Node II	Python
Short Encoding of Words	Python
Find Longest Awesome Substring	Python
132 Pattern	Python
Decode String	Python
N-Repeated Element in Size 2N Array	Python
Dot Product of Two Sparse Vectors	Python
Palindrome Partitioning	Python
Minimum Number of Arrows to Burst Balloons	Python
Battleships in a Board	Golang
First Missing Positive	Python
Island Perimeter	Python
Hamming Distance	Python
Encode and Decode TinyURL	Python
Score After Flipping Matrix	Python Golang
Sort Array by Increasing Frequency	Python
Maximum Depth of Binary Tree	Python
Count Sorted Vowel Strings	Python
Word Ladder	Python
Flipping an Image	Python
Paint House	Golang
Gas Station	Python
Design Browser History	Python
Print Binary Tree	Python
Unique Binary Search Trees	Python Golang
Remove Covered Intervals	Python
Sentence Screen Fitting	Python
Minimum Window Subsequence	Python
Palindromic Substrings	Python
Remove Interval	Python
Pseudo-Palindromic Paths in a Binary Tree	Python
Word Search II	Python
Knight Probability in Chessboard	Python
Fizz Buzz	Python
Graph Valid Tree	Python
Maximum Average Subtree	Python
Range Sum Query - Immutable	Python
Check If Two String Arrays are Equivalent	Python
Integer to Roman	Python
Binary Prefix Divisible By 5	Python
Inorder Successor in BST	Python
Couples Holding Hands	Python
Consecutive Characters	Python
Minimum Adjacent Swaps for K Consecutive Ones	Python
Longest Repeating Substring	Python
Unique Paths II	Python
Best Meeting Point	Python
Angle Between Hands of a Clock	Python
Binary Tree Level Order Traversal	Python
Poor Pigs	Python
Split Linked List in Parts	Python
Distribute Coins in Binary Tree	Python
Delete Node in a BST	Python
Ones and Zeroes	Python
Add Digits	Python
Design Hit Counter	Python
Path Sum	Python
Minimum Moves to Equal Array Elements II	Python
Previous Permutation With One Swap	Python
Remove Duplicates from Sorted Array	Python
Design Front Middle Back Queue	Python
Balance a Binary Search Tree	Python
Search a 2D Matrix II	Python
Combination Sum II	Python
Text Justification	Python
Encode and Decode Strings	Python
Add Binary	Python
Find the Town Judge	Golang
Binary Tree Maximum Path Sum	Python
Unique Binary Search Trees II	Python
Cousins in Binary Tree	Golang
Sort Array By Parity II	Python
House Robber	Python
01 Matrix	Python
Video Stitching	Python
Matrix Block Sum	Python
24 Game	Python
Bag of Tokens	Python
Majority Element II	Python
Increasing Order Search Tree	Python
Minimum Numbers of Function Calls to Make Target Array	Python
Count Submatrices With All Ones	Python
Ambiguous Coordinates	Python
First Unique Character in a String	Golang
Strobogrammatic Number	Python
Slowest Key	Python
Bitwise ORs of Subarrays	Python
Evaluate Reverse Polish Notation	Python Golang
Maximum Subarray	Python
Repeated DNA Sequences	Python
Two City Scheduling	Python
Permutations II	Python
Integer Break	Python
Merge Two Sorted Lists	Python
Partition to K Equal Sum Subsets	Python
Reverse Linked List II	Python
Maximum Frequency Stack	Python
Sort Array By Parity	Python
Dice Roll Simulation	Python
Palindrome Permutation	Python
Check If It Is a Straight Line	Golang
LFU Cache	Python
Max Consecutive Ones III	Python
LRU Cache	Python
Image Overlap	Python
Group the People Given the Group Size They Belong To	Golang
Design In-Memory File System	Python
Knight Dialer	Python
Number Of Corner Rectangles	Python
Walls and Gates	Python
Range Addition	Python
Height Checker	Python
Longest Substring with At Most Two Distinct Characters	Python
Guess the Word	Python
Jump Game II	Python
Design Parking System	Python
Maximal Square	Python
Pancake Sorting	Python
Valid Anagram	Python
Valid Triangle Number	Python
Range Sum Query - Mutable	Python
Last Stone Weight II	Python
Min Cost to Connect All Points	Python
Partition Array Into Three Parts With Equal Sum	Python
Delete Node in a Linked List	Golang
Subdomain Visit Count	Python
Permutations	Python
Numbers With Same Consecutive Differences	Python
Partition Labels	Python Golang
Binary Tree Preorder Traversal	Python
Task Scheduler	Python
Encode N-ary Tree to Binary Tree	Python
Maximum Sum Circular Subarray	Golang
Is Graph Bipartite?	Python
Jump Game	Python Golang
Excel Sheet Column Number	Python
Regions Cut By Slashes	Python
Can I Win	Python
Alien Dictionary	Python
Number of Islands II	Python
Meeting Rooms II	Python
Iterator for Combination	Python
Minimum Difference Between Largest and Smallest Value in Three Moves	Python
Merge Sorted Array	Python
Bulls and Cows	Python
Continuous Subarray Sum	Python
Construct Binary Tree from Inorder and Postorder Traversal	Python
Binary Tree Right Side View	Python
Min Cost Climbing Stairs	Python
ZigZag Conversion	Python
Reformat Date	Python
Find K-Length Substrings With No Repeated Characters	Python
Number of 1 Bits	Python
Wiggle Sort	Python
Gray Code	Python
Wiggle Subsequence	Python
Count Substrings That Differ by One Character	Python
Campus Bikes II	Python
Maximum Performance of a Team	Python
Reorder List	Python
Minimize Max Distance to Gas Station	Python
Maximal Rectangle	Python
2 Keys Keyboard	Python
Remove Palindromic Subsequences	Python
Arithmetic Slices	Python
Sort Items by Groups Respecting Dependencies	Python
Range Sum of Sorted Subarray Sums	Python
Bitwise AND of Numbers Range	Python
Maximum XOR of Two Numbers in an Array	Python
Linked List Cycle	Python
Increasing Decreasing String	Python
Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree	Python
Longest Substring with At Least K Repeating Characters	Python
Shortest Word Distance II	Python
Check Array Formation Through Concatenation	Python
Valid Perfect Square	Python
Toss Strange Coins	Python
Longest Common Prefix	Python
Maximum Number of Vowels in a Substring of Given Length	Python
Interval List Intersections	Python
Goat Latin	Python
Construct Binary Search Tree from Preorder Traversal	Python
Longest Substring with At Most K Distinct Characters	Python
Flip Equivalent Binary Trees	Python
Smallest Integer Divisible by K	Python
Find All Duplicates in an Array	Golang
Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree	Python
Number of Enclaves	Python
Middle of the Linked List	Python Golang
Number of Longest Increasing Subsequence	Python
Longest Happy Prefix	Python
Find the Most Competitive Subsequence	Python
Word Break	Python
Car Fleet	Python
Arranging Coins	Python
Teemo Attacking	Python
Ugly Number II	Python
Number of Sub-arrays With Odd Sum	Python
Validate Binary Search Tree	Python
Random Pick with Weight	Python
Missing Ranges	Python
Last Stone Weight	Python
Next Permutation	Python
Maximum Length of a Concatenated String with Unique Characters	Python
Binary String With Substrings Representing 1 To N	Python
Minimum Cost to Move Chips to The Same Position	Python
Basic Calculator	Python
Flatten Binary Tree to Linked List	Python
Multiply Strings	Python
Wildcard Matching	Python
Minimum Jumps to Reach Home	Python
Max Points on a Line	Python
Target Sum	Python Golang
Minimum Number of Increments on Subarrays to Form a Target Array	Python
Sum of Left Leaves	Python
Binary Tree Tilt	Python
Distribute Candies to People	Python
Perform String Shifts	Python
Largest Time for Given Digits	Python
Max Number of K-Sum Pairs	Python
Find Common Characters	Python
Decoded String at Index	Python
Minimum Number of Vertices to Reach All Nodes	Python
All Elements in Two Binary Search Trees	Python
Swap For Longest Repeated Character Substring	Python
Diameter of Binary Tree	Python
Linked List in Binary Tree	Python
Delete Tree Nodes	Python
Search Insert Position	Python Golang
Binary Tree Inorder Traversal	Python
Insert into a Sorted Circular Linked List	Python
The Skyline Problem	Python
Find Smallest Common Element in All Rows	Python
Total Hamming Distance	Python
Plus One Linked List	Python C++
Valid Sudoku	Python
Find the Celebrity	Python
Delete Columns to Make Sorted	Python
Best Time to Buy and Sell Stock	Python
Single-Row Keyboard	Python Golang
Minimum Falling Path Sum II	Python
Search in a Sorted Array of Unknown Size	Python
Next Greater Element III	Python
Minimum Remove to Make Valid Parentheses	Python
Implement Trie (Prefix Tree)	Python
Game of Life	Python
Minimum Operations to Reduce X to Zero	Python
Valid Square	Python
Two Sum II - Input array is sorted	Python
Word Search	Python Golang
Convert Binary Number in a Linked List to Integer	Python
Valid Parenthesis String	Python
Insufficient Nodes in Root to Leaf Paths	Python
Letter Combinations of a Phone Number	Python
Clone Graph	Python
Max Increase to Keep City Skyline	Python
Number of Squareful Arrays	Python
Implement Rand10() Using Rand7()	Python
Cherry Pickup II	Python
Course Schedule	Python
Find the Smallest Divisor Given a Threshold	Python
Deepest Leaves Sum	Golang
Second Minimum Node In a Binary Tree	Python
Minimum Add to Make Parentheses Valid	Python
Maximize Sum Of Array After K Negations	Python
Two Sum IV - Input is a BST	Python
Count Odd Numbers in an Interval Range	Python
The kth Factor of n	Python
Spiral Matrix II	Python
Zigzag Iterator	Python
Reverse Bits	Python
Shortest Palindrome	Python
Non-overlapping Intervals	Python
Design an Expression Tree With Evaluate Function	Python
Minimum Swaps To Make Sequences Increasing	Python Golang
Open the Lock	Python
Binary Tree Postorder Traversal	Python
Output Contest Matches	Golang
Coin Change 2	Golang
Happy Number	Python
Symmetric Tree	Python
Alert Using Same Key-Card Three or More Times in a One Hour Period	Python
Design HashSet	Python
Number of Students Unable to Eat Lunch	Python
Sort the Matrix Diagonally	Python
Dungeon Game	Python
Greatest Sum Divisible by Three	Python
Remove All Adjacent Duplicates In String	Python
Airplane Seat Assignment Probability	Python
Widest Vertical Area Between Two Points Containing No Points	Python
Arithmetic Slices II - Subsequence	Python
Add One Row to Tree	Python
Decode Ways	Python
Find the Duplicate Number	Golang
Container With Most Water	Python
Best Time to Buy and Sell Stock III	Python
Largest Rectangle in Histogram	Python
Find the Longest Substring Containing Vowels in Even Counts	Python
Design Add and Search Words Data Structure	Python
Minimum Deletions to Make String Balanced	Python
Android Unlock Patterns	Python
Domino and Tromino Tiling	Python
Push Dominoes	Python
Minimum Insertions to Balance a Parentheses String	Python
Basic Calculator II	Python
Meeting Scheduler	Python
Kth Smallest Element in a BST	Python
Same Tree	Python Golang
Number of Ways to Form a Target String Given a Dictionary	Python
Maximum Profit in Job Scheduling	Python
Longest Subarray of 1's After Deleting One Element	Python
Partition List	Python
Last Substring in Lexicographical Order	Python
Regular Expression Matching	Python
Range Sum Query 2D - Immutable	Python
Path Sum III	Python
Remove Duplicates from Sorted List II	Python
Climbing Stairs	Python
Fruit Into Baskets	Python
Maximum Width of Binary Tree	Python Golang
Find the Difference	Python
Pizza With 3n Slices	Python
Top K Frequent Elements	Python
Number of Distinct Islands	Python
Stone Game IV	Python
Heaters	Python
K Closest Points to Origin	Python
Perfect Squares	Python
Longest Line of Consecutive One in Matrix	Python
Count Largest Group	Python
Shopping Offers	Python
Jump Game III	Python
Average of Levels in Binary Tree	Python
Maximum Product Subarray	Python
Longest String Chain	Python
Reaching Points	Python
H-Index	Python
K-diff Pairs in an Array	Python
Find Permutation	Python
Find First and Last Position of Element in Sorted Array	Python
Group Anagrams	Python
Word Break II	Python
Two Sum	Python
Number of Students Doing Homework at a Given Time	Python
Shortest Distance to a Character	Python
Merge Intervals	Python
Car Pooling	Python
Letter Case Permutation	Python
Find the Minimum Number of Fibonacci Numbers Whose Sum Is K	Python
Move Zeroes	Python
Binary Tree Level Order Traversal II	Python
Unique Email Addresses	Python
Sort Colors	Python
Logger Rate Limiter	Python
Read N Characters Given Read4 II - Call multiple times	Python
Sum of Nodes with Even-Valued Grandparent	Golang
Hexspeak	Python
Odd Even Linked List	Golang
Smallest Subtree with all the Deepest Nodes	Python
Shortest Path in Binary Matrix	Python
Rotate Array	Python
Longest Consecutive Sequence	Python
Capacity To Ship Packages Within D Days	Python Golang
Number of Dice Rolls With Target Sum	Python
Unique Paths III	Python
Monotonic Array	Python
Edit Distance	Python
Search in Rotated Sorted Array	Python
Delete Nodes And Return Forest	Python
Kill Process	Python
N-th Tribonacci Number	Python
Shortest Path in a Grid with Obstacles Elimination	Python
Making A Large Island	Python
Check If It Is a Good Array	Python
Lowest Common Ancestor of Deepest Leaves	Python
Jump Game VI	Python
Next Greater Element I	Python
Kth Ancestor of a Tree Node	Python
Buildings With an Ocean View	Python
Divide Chocolate	Python
Number of Valid Words for Each Puzzle	Python
Kth Smallest Number in Multiplication Table	Python
Employee Free Time	Python
Richest Customer Wealth	Python
Longest Repeating Character Replacement	Python
Count Sub Islands	Python
Sort an Array	Python
Number of Ways to Split a String	Python
Maximum White Tiles Covered by a Carpet	Python
Evaluate the Bracket Pairs of a String	Python
Valid Number	Python
Sequentially Ordinal Rank Tracker	Python
Recyclable and Low Fat Products	SQL
Managers with at Least 5 Direct Reports	SQL
Count of Range Sum	Python
Expression Add Operators	Python
Best Position for a Service Centre	Python
Subsets II	Python
Restore IP Addresses	Python
Count Ways to Make Array With Product	Python
Add to Array-Form of Integer	Python
Redundant Connection	Python
Subarray With Elements Greater Than Varying Threshold	Python
Number of Ways to Buy Pens and Pencils	Python
Closest Binary Search Tree Value II	Python
Split Array into Consecutive Subsequences	Python
Minimum Number of Refueling Stops	Python
Binary Tree Longest Consecutive Sequence II	Python
Maximum Length of Subarray With Positive Product	Python
Finding the Number of Visible Mountains	Python
Minimum Replacements to Sort the Array	Python
Count Number of Bad Pairs	Python
Closest Node to Path in Tree	Python
Move Pieces to Obtain a String	Python
Count Integers in Intervals	Python
Count Good Nodes in Binary Tree	Python
Minimum Flips in Binary Tree to Get Result	Python
Design Video Sharing Platform	Python
Construct String from Binary Tree	Python
Earliest Possible Day of Full Bloom	Golang
Repeated String Match	Python
The Maze III	Python
Design Excel Sum Formula	Python
Find Players With Zero or One Losses	Golang
Unique Number of Occurrences	Golang
Determine if String Halves Are Alike	Golang
Minimum Average Difference	Golang
Implement Queue using Stacks	Golang
Find if Path Exists in Graph	Golang
Maximum Bags With Full Capacity of Rocks	Golang
Remove Stones to Minimize the Total	Python