LeetCode Solutions

A collection of my solutions to some LeetCode Problems

Author

Nilaksh Agarwal

• Website: nilax97.github.io
• Github: @nilax97
• LinkedIn: @nilaksh97

License

MIT License

Copyright (c) 2021 Nilaksh Agarwal

Table of Contents

Problem Name	Solution Link	Language	Runtime	Memory used
1-bit and 2-bit Characters	Solution	Python	76 ms	17.3 MB
24 Game	Solution	Python	180 ms	14.1 MB
3Sum	Solution	Python	1824 ms	15.9 MB
3Sum With Multiplicity	Solution	Python	76 ms	14.6 MB
Add Binary	Solution	Python	40 ms	14.2 MB
Add One Row to Tree	Solution	Python	60 ms	17.5 MB
Add to Array-Form of Integer	Solution	Python	288 ms	14.9 MB
Add Two Numbers	Solution	Python	68 ms	14.1 MB
Add Two Numbers II	Solution	python3	76 ms	14.4 MB
Advantage Shuffle	Solution	Python	344 ms	17.6 MB
All Elements in Two Binary Search Trees	Solution	Python	448 ms	21.8 MB
Ambiguous Coordinates	Solution	Python	48 ms	14.5 MB
Arithmetic Slices	Solution	Python	28 ms	14.5 MB
Arranging Coins	Solution	Python	2020 ms	13.8 MB
Array Partition I	Solution	Python	272 ms	16.9 MB
Average of Levels in Binary Tree	Solution	Python	40 ms	16.4 MB
Backspace String Compare	Solution	Python	40 ms	13.9 MB
Beautiful Arrangement	Solution	Python	44 ms	15.1 MB
Beautiful Arrangement II	Solution	Python	52 ms	15.1 MB
Best Time to Buy and Sell Stock	Solution	Python	68 ms	15 MB
Best Time to Buy and Sell Stock II	Solution	Python	88 ms	15.1 MB
Best Time to Buy and Sell Stock with Transaction Fee	Solution	Python	580 ms	21.2 MB
Big Countries	Solution	MySQL	248 ms	0B
Binary Search Tree to Greater Sum Tree	Solution	C++	4 ms	9.2 MB
Binary String With Substrings Representing 1 To N	Solution	Python	32 ms	14.2 MB
Binary Tree Cameras	Solution	Python	44 ms	14.6 MB
Binary Tree Inorder Traversal	Solution	Python	28 ms	12.7 MB
Binary Tree Level Order Traversal	Solution	Python	32 ms	15.1 MB
Binary Tree Maximum Path Sum	Solution	Python	100 ms	21.6 MB
Binary Tree Pruning	Solution	Python	32 ms	14.1 MB
Binary Tree Right Side View	Solution	Python	20 ms	14.3 MB
Binary Trees With Factors	Solution	Python	1088 ms	14.3 MB
Bitwise AND of Numbers Range	Solution	Python	72 ms	13.8 MB
Boats to Save People	Solution	Python	1364 ms	22.2 MB
Brick Wall	Solution	Python	164 ms	19.2 MB
Broken Calculator	Solution	Python	28 ms	14.4 MB
Bulb Switcher	Solution	Python	28 ms	14.1 MB
Bulls and Cows	Solution	Python	44 ms	13.6 MB
Car Pooling	Solution	Python	272 ms	14.2 MB
Check Array Formation Through Concatenation	Solution	Python	36 ms	14.2 MB
Check If a String Contains All Binary Codes of Size K	Solution	Python	336 ms	27.3 MB
Check If All 1's Are at Least Length K Places Away	Solution	Python	560 ms	16.9 MB
Check If Two String Arrays are Equivalent	Solution	Python	64 ms	14.3 MB
Climbing Stairs	Solution	Python	28 ms	12.7 MB
Coin Change	Solution	Python	1088 ms	14.4 MB
Combination Sum III	Solution	Python	32 ms	13.6 MB
Combination Sum IV	Solution	Python	32 ms	14 MB
Compare Version Numbers	Solution	Python	32 ms	14.1 MB
Concatenation of Consecutive Binary Numbers	Solution	Python	1756 ms	14.4 MB
Construct Binary Search Tree from Preorder Traversal	Solution	Python	40 ms	13.8 MB
Construct Binary Tree from Preorder and Inorder Traversal	Solution	Python	248 ms	89.9 MB
Construct Target Array With Multiple Sums	Solution	Python	236 ms	20.2 MB
Container With Most Water	Solution	Python	180 ms	16.4 MB
Contains Duplicate	Solution	Python	128 ms	19.1 MB
Contains Duplicate III	Solution	Python	704 ms	15.6 MB
Contiguous Array	Solution	Python	920 ms	18.2 MB
Convert BST to Greater Tree	Solution	Python	84 ms	16.9 MB
Convert Sorted Array to Binary Search Tree	Solution	Python	64 ms	15.6 MB
Convert Sorted List to Binary Search Tree	Solution	Python	140 ms	20.3 MB
Copy List with Random Pointer	Solution	Python	40 ms	14.8 MB
Count and Say	Solution	Python	36 ms	12.8 MB
Count Binary Substrings	Solution	Python	164 ms	14.5 MB
Count Primes	Solution	Python	2472 ms	52.8 MB
Count Sorted Vowel Strings	Solution	Python	32 ms	14.2 MB
Count Submatrices With All Ones	Solution	Python	252 ms	14.5 MB
Counting Elements	Solution	Python	64 ms	13.8 MB
Course Schedule	Solution	Python	364 ms	15.4 MB
Course Schedule II	Solution	Python	372 ms	15.6 MB
Course Schedule III	Solution	Python	676 ms	19.3 MB
Create Sorted Array through Instructions	Solution	Python	7912 ms	29.5 MB
Critical Connections in a Network	Solution	Python	2108 ms	82.7 MB
Custom Sort String	Solution	Python	32 ms	14.4 MB
Decode Ways	Solution	Python	60 ms	15.7 MB
Deepest Leaves Sum	Solution	Python	92 ms	17.7 MB
Defanging an IP Address	Solution	Python	36 ms	13.8 MB
Delete Node in a Linked List	Solution	Python	48 ms	14.9 MB
Delete Nodes And Return Forest	Solution	Python	64 ms	14.9 MB
Delete Operation for Two Strings	Solution	Python	324 ms	16 MB
Design Circular Queue	Solution	Python	68 ms	14.7 MB
Design HashMap	Solution	Python	216 ms	17.4 MB
Design Underground System	Solution	Python	236 ms	24.8 MB
Determine if String Halves Are Alike	Solution	Python	44 ms	14.4 MB
Determine if Two Strings Are Close	Solution	Python	196 ms	15.1 MB
Diameter of Binary Tree	Solution	Python	48 ms	16 MB
Distribute Candies	Solution	Python	864 ms	16 MB
Divide Two Integers	Solution	Python	32 ms	14.3 MB
Divisor Game	Solution	Python	28 ms	14.2 MB
Encode and Decode TinyURL	Solution	C++	0 ms	8.7 MB
Evaluate Division	Solution	Python	32 ms	14.1 MB
Evaluate Reverse Polish Notation	Solution	Python	68 ms	14.5 MB
Excel Sheet Column Title	Solution	Python	20 ms	14.1 MB
Fibonacci Number	Solution	Python	940 ms	14 MB
Filling Bookcase Shelves	Solution	Python	52 ms	14.6 MB
Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Solution	Python	636 ms	24.1 MB
Find a Corresponding Node of a Binary Tree in a Clone of That Tree	Solution	Python	616 ms	24 MB
Find And Replace in String	Solution	Python	40 ms	14.4 MB
Find and Replace Pattern	Solution	Python	44 ms	14.3 MB
Find Duplicate File in System	Solution	Python	80 ms	25.8 MB
Find First and Last Position of Element in Sorted Array	Solution	Python	88 ms	15.6 MB
Find Largest Value in Each Tree Row	Solution	Python	52 ms	17.3 MB
Find Positive Integer Solution for a Given Equation	Solution	Python	60 ms	14.3 MB
Find the Difference	Solution	Python	40 ms	13.8 MB
Find the Most Competitive Subsequence	Solution	Python	1380 ms	27.7 MB
Find the Shortest Superstring	Solution	Python	704 ms	15.3 MB
First Bad Version	Solution	Python	20 ms	12.7 MB
First Missing Positive	Solution	Python	32 ms	14 MB
First Unique Character in a String	Solution	Python	208 ms	14 MB
First Unique Number	Solution	Python	8392 ms	55.5 MB
Flatten Binary Tree to Linked List	Solution	Python	40 ms	15.3 MB
Flatten Nested List Iterator	Solution	Python	68 ms	17.8 MB
Flip Binary Tree To Match Preorder Traversal	Solution	Python	32 ms	14.2 MB
Flipping an Image	Solution	C++	12 ms	9.3 MB
Flood Fill	Solution	Python	80 ms	14.5 MB
Flower Planting With No Adjacent	Solution	Python	452 ms	19 MB
Furthest Building You Can Reach	Solution	Python	604 ms	28.7 MB
Gas Station	Solution	Python	2292 ms	14.6 MB
Generate Random Point in a Circle	Solution	Python	148 ms	24.4 MB
Get Maximum in Generated Array	Solution	Python	32 ms	14.2 MB
Global and Local Inversions	Solution	Python	344 ms	15.1 MB
Group Anagrams	Solution	Python	144 ms	16.6 MB
Guess Number Higher or Lower	Solution	Python	32 ms	14.3 MB
Hamming Distance	Solution	Java	12 ms	37.7 MB
Happy Number	Solution	Python	32 ms	13.6 MB
House Robber	Solution	Python	40 ms	13.7 MB
How Many Numbers Are Smaller Than the Current Number	Solution	Python	52 ms	14.4 MB
Image Overlap	Solution	Python	192 ms	37.8 MB
Implement strStr()	Solution	Python	36 ms	12.8 MB
Inorder Successor in BST	Solution	Python	180 ms	16.7 MB
Insert Interval	Solution	Python	132 ms	17.3 MB
Insert into a Binary Search Tree	Solution	C++	92 ms	32.8 MB
Integer to Roman	Solution	Python	44 ms	14.2 MB
Interleaving String	Solution	Python	40 ms	14.4 MB
Intersection of Two Arrays	Solution	Python	44 ms	14.3 MB
Intersection of Two Arrays II	Solution	Python	48 ms	12.9 MB
Intersection of Two Linked Lists	Solution	Python	172 ms	29.4 MB
Interval List Intersections	Solution	Python	260 ms	14.5 MB
Is Graph Bipartite?	Solution	Python	176 ms	14.9 MB
Isomorphic Strings	Solution	Python	40 ms	13.9 MB
Jewels and Stones	Solution	Python	32 ms	14.2 MB
Jump Game	Solution	Python	88 ms	15.9 MB
Jump Game II	Solution	Python	28 ms	14.2 MB
Keys and Rooms	Solution	Python	56 ms	14.9 MB
Kids With the Greatest Number of Candies	Solution	Python	40 ms	14.2 MB
Knight Probability in Chessboard	Solution	Python	192 ms	23.2 MB
Kth Largest Element in a Stream	Solution	Python	6360 ms	18.5 MB
Kth Largest Element in an Array	Solution	Python	64 ms	15.1 MB
Kth Missing Positive Number	Solution	Python	52 ms	14.4 MB
Kth Smallest Element in a BST	Solution	Python	52 ms	16.7 MB
Largest Number	Solution	Python	36 ms	14.2 MB
Largest Rectangle in Histogram	Solution	Python	792 ms	27.1 MB
Largest Time for Given Digits	Solution	Python	40 ms	14 MB
Largest Values From Labels	Solution	Python	116 ms	17.8 MB
Last Stone Weight	Solution	Python	28 ms	13.8 MB
Leaf-Similar Trees	Solution	Python	32 ms	14.1 MB
Leftmost Column with at Least a One	Solution	Python	116 ms	14.1 MB
Length of Last Word	Solution	Python	48 ms	13.8 MB
Letter Case Permutation	Solution	Python	52 ms	14.8 MB
Letter Combinations of a Phone Number	Solution	Python	28 ms	12.8 MB
Letter Tile Possibilities	Solution	Python	64 ms	14.6 MB
Linked List Cycle	Solution	Python	60 ms	17.1 MB
Linked List Random Node	Solution	Python	84 ms	17.5 MB
Longest Common Prefix	Solution	Python	32 ms	12.8 MB
Longest Common Subsequence	Solution	Python	1928 ms	640.6 MB
Longest Consecutive Sequence	Solution	Python	360 ms	25.9 MB
Longest Continuous Increasing Subsequence	Solution	Python	80 ms	15.5 MB
Longest Harmonious Subsequence	Solution	Python	368 ms	16 MB
Longest Increasing Path in a Matrix	Solution	Python	352 ms	14.8 MB
Longest Palindromic Substring	Solution	Python	936 ms	13.7 MB
Longest String Chain	Solution	Python	128 ms	14.7 MB
Longest Substring Without Repeating Characters	Solution	Python	72 ms	14.4 MB
Longest Valid Parentheses	Solution	Python	44 ms	14.8 MB
Longest Word in Dictionary through Deleting	Solution	Python	72 ms	17.6 MB
Lowest Common Ancestor of a Binary Tree	Solution	Python	916 ms	27.3 MB
LRU Cache	Solution	Python	216 ms	23.4 MB
Majority Element II	Solution	Python	124 ms	15.4 MB
Max Area of Island	Solution	Python	172 ms	14.3 MB
Max Increase to Keep City Skyline	Solution	Java	8 ms	38.8 MB
Max Number of K-Sum Pairs	Solution	Python	1156 ms	27.6 MB
Maximal Square	Solution	Python	208 ms	14.6 MB
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	Solution	Python	400 ms	27.2 MB
Maximum Binary Tree	Solution	C++	100 ms	39 MB
Maximum Candies You Can Get from Boxes	Solution	Python	852 ms	26.4 MB
Maximum Depth of Binary Tree	Solution	Python	40 ms	14.9 MB
Maximum Erasure Value	Solution	Python	1216 ms	28.4 MB
Maximum Frequency Stack	Solution	Python	300 ms	22.4 MB
Maximum Gap	Solution	Python	56 ms	15.3 MB
Maximum Performance of a Team	Solution	Python	448 ms	30.7 MB
Maximum Points You Can Obtain from Cards	Solution	Python	644 ms	27.4 MB
Maximum Product of Word Lengths	Solution	Python	168 ms	14.7 MB
Maximum Product Subarray	Solution	Python	68 ms	14 MB
Maximum Subarray	Solution	Python	124 ms	14.5 MB
Maximum XOR of Two Numbers in an Array	Solution	Python	504 ms	99.5 MB
Median of Two Sorted Arrays	Solution	Python	88 ms	14.6 MB
Merge Intervals	Solution	Python	80 ms	16.2 MB
Merge k Sorted Lists	Solution	Python	92 ms	18.4 MB
Merge Sorted Array	Solution	Python	32 ms	14.3 MB
Merge Two Sorted Lists	Solution	Python	40 ms	14.4 MB
Middle of the Linked List	Solution	Python	32 ms	13.8 MB
Min Cost Climbing Stairs	Solution	Python	64 ms	14.4 MB
Min Stack	Solution	Python	56 ms	17.5 MB
Minimize Deviation in Array	Solution	Python	1000 ms	32 MB
Minimum Depth of Binary Tree	Solution	Python	644 ms	55.5 MB
Minimum Moves to Equal Array Elements II	Solution	Python	76 ms	15.4 MB
Minimum Operations to Make Array Equal	Solution	Python	144 ms	14.3 MB
Minimum Operations to Reduce X to Zero	Solution	Python	1268 ms	36.3 MB
Minimum Path Sum	Solution	Python	104 ms	15.6 MB
Minimum Remove to Make Valid Parentheses	Solution	Python	92 ms	16 MB
Missing Number	Solution	Python	124 ms	15.2 MB
Missing Ranges	Solution	Python	28 ms	12.7 MB
Monotonic Array	Solution	Python	920 ms	19.7 MB
Move Zeroes	Solution	Python	48 ms	15.1 MB
Multiply Strings	Solution	Python	24 ms	14.3 MB
N-ary Tree Preorder Traversal	Solution	Python	60 ms	16.1 MB
N-Queens	Solution	Python	56 ms	14.8 MB
N-Queens II	Solution	Python	52 ms	14.1 MB
Network Delay Time	Solution	Python	456 ms	16 MB
Next Permutation	Solution	Python	56 ms	14.2 MB
Non-decreasing Array	Solution	Python	180 ms	15.3 MB
Number of 1 Bits	Solution	Python	80 ms	14.2 MB
Number of Dice Rolls With Target Sum	Solution	Python	572 ms	19.2 MB
Number of Different Integers in a String	Solution	Python	32 ms	14.3 MB
Number of Islands	Solution	Python	132 ms	13.6 MB
Number of Recent Calls	Solution	Python	4744 ms	19.3 MB
Number of Steps to Reduce a Number to Zero	Solution	Python	32 ms	14.4 MB
Number of Students Unable to Eat Lunch	Solution	Python	36 ms	14.3 MB
Number of Submatrices That Sum to Target	Solution	Python	964 ms	15.2 MB
Numbers With Same Consecutive Differences	Solution	Python	60 ms	14.1 MB
Occurrences After Bigram	Solution	Python	28 ms	14.3 MB
Odd Even Linked List	Solution	Python	40 ms	14.4 MB
Ones and Zeroes	Solution	Python	3712 ms	14.2 MB
Open the Lock	Solution	Python	3772 ms	15.2 MB
Pacific Atlantic Water Flow	Solution	Python	280 ms	15.7 MB
Palindrome Linked List	Solution	Python	856 ms	47.5 MB
Palindromic Substrings	Solution	Python	120 ms	14.4 MB
Partition Labels	Solution	Python	44 ms	13.8 MB
Partition List	Solution	Python	36 ms	14.3 MB
Partitioning Into Minimum Number Of Deci-Binary Numbers	Solution	Python	196 ms	16.1 MB
Pascal's Triangle	Solution	Python	32 ms	13.8 MB
Path Sum	Solution	Python	44 ms	14.7 MB
Path Sum III	Solution	Python	268 ms	13.8 MB
Path With Minimum Effort	Solution	Python	744 ms	16.9 MB
Peeking Iterator	Solution	Python	32 ms	14.5 MB
Perform String Shifts	Solution	Python	28 ms	13.9 MB
Permutation in String	Solution	Python	72 ms	14.6 MB
Plus One	Solution	Python	28 ms	12.7 MB
Populating Next Right Pointers in Each Node	Solution	Python	76 ms	14.3 MB
Pow(x-n)	Solution	Python	28 ms	14.3 MB
Power of Three	Solution	Python	56 ms	14.3 MB
Powerful Integers	Solution	Python	28 ms	14.4 MB
Prefix and Suffix Search	Solution	Python	864 ms	60.9 MB
Product of Array Except Self	Solution	Python	228 ms	21.1 MB
Random Pick Index	Solution	Python	332 ms	23.1 MB
Range Sum of BST	Solution	C++	164 ms	41 MB
Range Sum Query 2D - Immutable	Solution	Python	116 ms	17.5 MB
Reconstruct Original Digits from English	Solution	Python	32 ms	14.1 MB
Regions Cut By Slashes	Solution	Python	96 ms	15.7 MB
Regular Expression Matching	Solution	Python	52 ms	14.4 MB
Remove All Adjacent Duplicates in String II	Solution	Python	36 ms	15.2 MB
Remove Comments	Solution	Python	32 ms	14.3 MB
Remove Duplicates from Sorted Array	Solution	Python	92 ms	14.4 MB
Remove Nth Node From End of List	Solution	Python	36 ms	13.9 MB
Remove Outermost Parentheses	Solution	Python	40 ms	14.4 MB
Remove Palindromic Subsequences	Solution	Python	28 ms	14.1 MB
Reorder Routes to Make All Paths Lead to the City Zero	Solution	Python	944 ms	46 MB
Reordered Power of 2	Solution	Python	32 ms	14.3 MB
Repeated Substring Pattern	Solution	Python	288 ms	13.9 MB
Restore IP Addresses	Solution	Python	44 ms	13.8 MB
Reverse Integer	Solution	Python	32 ms	12.8 MB
Reverse Only Letters	Solution	Python	28 ms	14.3 MB
Reverse String	Solution	Python	224 ms	17.3 MB
Reverse String II	Solution	Python	28 ms	14.5 MB
Reverse Vowels of a String	Solution	Python	72 ms	16.1 MB
Reverse Words in a String	Solution	Python	36 ms	14.3 MB
Richest Customer Wealth	Solution	Python	60 ms	14.3 MB
Robot Bounded In Circle	Solution	Python	60 ms	13.9 MB
Robot Return to Origin	Solution	Java	20 ms	41.5 MB
Roman to Integer	Solution	Python	44 ms	14.5 MB
Rotate Array	Solution	Python	64 ms	13.9 MB
Rotate Image	Solution	Python	28 ms	12.7 MB
Rotate String	Solution	Python	32 ms	14.1 MB
Running Sum of 1d Array	Solution	Python	36 ms	14.4 MB
Russian Doll Envelopes	Solution	Python	140 ms	16.5 MB
Same Tree	Solution	Python	28 ms	14.4 MB
Score of Parentheses	Solution	Python	24 ms	14.3 MB
Search a 2D Matrix II	Solution	Python	188 ms	20.5 MB
Search in Rotated Sorted Array	Solution	Python	44 ms	13.8 MB
Search Suggestions System	Solution	Python	228 ms	21.1 MB
Second Minimum Node In a Binary Tree	Solution	Python	28 ms	14.1 MB
Self Dividing Numbers	Solution	Python	32 ms	14 MB
Sequential Digits	Solution	Python	32 ms	13.8 MB
Serialize and Deserialize Binary Tree	Solution	Python	116 ms	18.9 MB
Set Matrix Zeroes	Solution	Python	140 ms	13.3 MB
Set Mismatch	Solution	Python	168 ms	16.1 MB
Short Encoding of Words	Solution	Python	7340 ms	14.8 MB
Shortest Distance to a Character	Solution	Python	36 ms	14.3 MB
Shortest Path in Binary Matrix	Solution	Python	576 ms	15 MB
Shortest Unsorted Continuous Subarray	Solution	Python	204 ms	15.1 MB
Shuffle an Array	Solution	Python	276 ms	19.4 MB
Shuffle the Array	Solution	Python	52 ms	14.1 MB
Simplify Path	Solution	Python	24 ms	14.4 MB
Single Number	Solution	Python	76 ms	16.4 MB
Smallest String With A Given Numeric Value	Solution	Python	288 ms	15.4 MB
Smallest Subtree with all the Deepest Nodes	Solution	Python	28 ms	14.5 MB
Sort the Matrix Diagonally	Solution	Python	84 ms	14.4 MB
Spiral Matrix	Solution	Python	28 ms	14.4 MB
Squares of a Sorted Array	Solution	Python	236 ms	16.4 MB
Stamping The Sequence	Solution	Python	196 ms	14.5 MB
String to Integer (atoi)	Solution	Python	36 ms	12.9 MB
Student Attendance Record I	Solution	Python	20 ms	14.1 MB
Subarray Product Less Than K	Solution	Python	1304 ms	18.3 MB
Subarray Sum Equals K	Solution	Python	120 ms	18.3 MB
Subrectangle Queries	Solution	Python	264 ms	18 MB
Subsets	Solution	Python	32 ms	14.5 MB
Sum of Root To Leaf Binary Numbers	Solution	Python	36 ms	14.2 MB
Sum of Unique Elements	Solution	Python	36 ms	14.4 MB
Super Palindromes	Solution	Python	1072 ms	14.4 MB
Swapping Nodes in a Linked List	Solution	Python	1296 ms	49 MB
Swim in Rising Water	Solution	Python	88 ms	15 MB
Symmetric Tree	Solution	Python	36 ms	13 MB
Task Scheduler	Solution	Python	372 ms	15 MB
Teemo Attacking	Solution	Python	260 ms	15.5 MB
The K Weakest Rows in a Matrix	Solution	Python	144 ms	14.6 MB
The k-th Lexicographical String of All Happy Strings of Length n	Solution	Python	80 ms	13.9 MB
To Lower Case	Solution	Python	28 ms	14.3 MB
Triangle	Solution	Python	56 ms	15.1 MB
Trim a Binary Search Tree	Solution	Python	80 ms	18.3 MB
Two Sum	Solution	Python	48 ms	14.3 MB
Ugly Number	Solution	Python	40 ms	14 MB
Uncrossed Lines	Solution	Python	368 ms	17.3 MB
Unique Morse Code Words	Solution	Python	44 ms	13.8 MB
Unique Paths II	Solution	Python	44 ms	14.3 MB
Unique Paths III	Solution	Python	60 ms	13.8 MB
Valid Anagram	Solution	Python	40 ms	14.5 MB
Valid Number	Solution	Python	32 ms	14.1 MB
Valid Palindrome	Solution	Python	100 ms	13.4 MB
Valid Parentheses	Solution	Python	28 ms	13.9 MB
Valid Parenthesis String	Solution	Python	24 ms	13.7 MB
Valid Sudoku	Solution	Python	144 ms	12.6 MB
Validate Binary Search Tree	Solution	Python	60 ms	17.2 MB
Validate Stack Sequences	Solution	Python	76 ms	14.6 MB
Verifying an Alien Dictionary	Solution	Python	32 ms	14.4 MB
Vertical Order Traversal of a Binary Tree	Solution	Python	36 ms	14.5 MB
Vowel Spellchecker	Solution	Python	176 ms	18.6 MB
Wiggle Subsequence	Solution	Python	36 ms	14.4 MB
Word Break	Solution	Python	48 ms	14.3 MB
Word Ladder	Solution	Python	456 ms	15.1 MB
Word Pattern	Solution	Python	32 ms	13.9 MB
Word Subsets	Solution	Python	612 ms	18.2 MB