solutions | Sudeep Malipeddi

#	Problem	Language
	Armstrong Number	java

	Best Time To Buy And Sell Stock	java

	Boundary Tree Traversal	java

	Ceil In BST	java

	Concatenation Of Array	java

	Connected Components	java

	Contains Duplicates	java

	Count Odd Numbers	java

	Delete Node In A Linked List	java

	Delete Occurence Of Keyin DLL	java

	Floor In BST	java

	In Order	java

	In Order Successor	java

	Index of string	java

	Kth Factors	java

	Level Order Traversal	java

	Linked List Sort 0 s 1 s 2 s	java

	Longest Common Prefix	java

	Longest Subarraywithgiven Sum K Positives	java

	Majorityelement	java

	Max Sum K Subarray	java

	Merge Two Linked List	java

	Middle Linked List	java

	Min Max	java

	Next Permutations	java

	Palindrome	java

	Partition Str	java

	Pascals Triangle	java

	Post Order	java

	Pre Order	java

	Remove Duplicate	java

	Remove Duplicate From Sorted List	java

	Remove Element	java

	Reverse Array	java

	Reverse Int	java

	Reverse Linked List	java

	Root To Node	java

	Shift Distance	java

	Smallest Divisible Digit Product I	java

	Threetraversals	java

	Tic Tac Toe Game	java

	Tree Boundary Traversal	java

	Two Sums	java

	Valid Anagram	java

	Valid Palindrome	java

	Vertical Order Traversal	java

2	Add Two Numbers	java

2	Two Sum	java

4	Median Of Sorted Arrays	java

5	Longest Palindromic String	java

8	String to Integer	java

11	Container with Most Water	java

13	Roman To Integer	java

15	3 Sum	java

17	Letter Combinations of a Phone Number	java

19	Remove Nth Node From End of List	java

23	Mergek Sorted Lists	java

24	Swap Nodes	java

35	Search Insert Position	java

38	Count and Say	java

49	Group Anagrams	java

50	Powxn	java

53	Maximum Subarray	java

57	Insert Interval	java

58	Length Of Last Word	java

61	Rotate List	java

62	Unique Paths	java

63	Unique Paths II	java

64	Minimum Path Sum	java

66	Plus One	java

67	Add Binary	java

70	Climbing Stairs	java

73	Set Matrix Zeroes	java

74	Search 2 D Matrix	java

78	Subsets	java

79	Word Search	java

80	Remove Duplicate Element	java

82	Remove Duplicates from Sorted List II	java

88	Merge Sorted Array	java

92	Reverse Linked List II	java

98	Validate Binary Search Tree	java

100	Same Tree	java

101	Is Symmetric	java

101	Symmetric Tree	java

102	Binary Tree Level Order Traversal	java

103	Binary Tree Zigzag Level Order Traversal	java

104	Maximum Depth of Binary Tree	java

110	Balanced Binary Tree	java

111	Minimum Depth of Binary Tree	java

113	Path Sum II	java

116	Populating Next Right Pointersin Each Node	java

124	Binary Tree Maximum Path Sum	java

127	Word Ladder	java

128	Longest Consecutive Sequence	java

129	Sum Root to Leaf Numbers	java

136	Single Number	java

148	Sort List	java

151	Reverse Words in a String	java

153	Find Minimumin Rotated Sorted Array	java

155	Min Stack	java

160	Intersection of Two Linked Lists	java

173	Binary Search Tree Iterator	java

176	Combine Two Tables	sql

179	Largest Number	java

198	House Robber	java

203	Remove Linked List Elements	java

205	Isomorphic Strings	java

213	House Robber II	java

215	Kth Largest Element in an Array	java

219	Contains Duplicate II	java

226	Invert Binary Tree	java

229	Majority Element II	java

230	Kth Smallest Element in a BST	java

231	Power of Two	java

234	Palindrome Linked List	java

236	Lowest Common Ancestor of a Binary Tree	java

238	Product of Array Except Self	java

252	Meeting Rooms	java

257	Binary Tree Paths	java

258	Add Digits	java

260	Single Number III	java

271	Encode And Decode Strings	java

278	First Bad Version	java

287	Find the Duplicate Number	java

290	Word Pattern	java

326	Is Powerf Three	java

328	Odd Even Linked List	java

334	Increasing Triplet Subsequence	java

342	Power Of Four	java

344	Reverse String	java

347	Top K Frequent Elements	java

389	Find the Difference	java

392	Is Subsequence	java

409	Longest Palindrome	java

412	Fizz Buzz	java

429	Nary Tree Level Order Traversal	java

442	Find All Duplicates in an Array	java

443	String Compression	java

451	Sort Characters By Frequency	java

496	Next Greater Element One	java

498	Diagonal Traverse	java

501	Find Modein Binary Search Tree	java

506	Relative Ranks	java

542	Matrix 01	java

543	Diameter of Binary Tree	java

547	Number of Provinces	java

559	Maximum Depth of Nary Tree	java

572	Subtree Of Another Tree	java

643	Maximum Average Subarray I	java

653	Two Sum IV Input is a BST	java

680	Valid Palindrome II	java

700	Search in a Binary Search Tree	java

701	Insertintoa Binary Search Tree	java

704	Binarysearch	java

705	Design Hash Set	java

706	Design Hash Map	java

725	Split Linked Listin Parts	java

739	Daily Temperatures	java

796	Rotate String	java

860	Lemonade Change	java

867	Transpose Matrix	java

872	Leaf Similar Trees	java

881	Boats to Save People	java

884	Uncommon Words from Two Sentences	java

945	Minimum Increment to Make Array Unique	java

994	Rotting Oranges	java

1002	Find Common Characters	java

1020	Number of Enclaves	java

1021	Remove Outermost Parentheses	java

1028	Recovera Tree From Preorder Traversal	java

1047	Remove All Adjacent Duplicates In String	java

1051	Height Checker	java

1071	Greatest Common Divisor of Strings	java

1122	Relative Sort Array	java

1160	Find Words That Can Be Formedby Characters	java

1171	Remove Zero Sum Consecutive Nodes from Linked List	java

1219	Path with Maximum Gold	java

1282	Group the People Given the Group Size They Belong To	java

1290	Convert Binary Number in a Linked List to Integer	java

1299	Replace Elements with Greatest Elementon Right Side	java

1325	Delete Leaves Witha Given Value	java

1331	Rank Transform of an Array	java

1352	Product of the Last K Numbers	java

1379	Finda Corresponding Node of a Binary Tree in a Clone of That Tree	java

1394	Find Lucky Integer in an Array	java

1408	String Matching in an Array	java

1424	Diagonal Traverse II	java

1455	Check Ifa Word Occurs Asa Prefix of Any Word in a Sentence	java

1541	Minimum Insertions to Balancea Parentheses String	java

1559	Detect Cyclesin 2 D Grid	java

1614	Maximum Nesting Depth of the Parentheses	java

1652	Defuse the Bomb	java

1701	Average Waiting Time	java

1752	Check if Array Is Sorted and Rotated	java

1768	Merge Strings Alternatively	java

1903	Largest Odd Numberin String	java

1910	Remove All Occurrences of a Substring	java

1913	Maximum Product Difference Between Two Pairs	java

1945	Sum of Digits of String After Convert	java

2000	Reverse Prefix of Word	java

2094	Finding 3 Digit Even Numbers	java

2095	Delete the Middle Node of a Linked List	java

2130	Maximum Twin Sum of a Linked List	java

2134	Minimum Swaps to Group All 1 s Together II	java

2181	Merge Nodes Between Zero	java

2185	Counting Words Witha Given Prefix	java

2215	Find the Difference of Two Arrays	java

2220	Minimum Bit Flips to Convert Number	java

2259	Remove Digit From Number to Maximize Result	java

2260	Minimum Consecutive Cards to Pick Up	java

2331	Evaluate Boolean Binary Tree	java

2373	Largest Local Values in a Matrix	java

2390	Removing Stars Froma String	java

2441	Largest Positive Integer That Exists With Its Negative	java

2471	Minimum Number of Operations to Sorta Binary Treeby Level	java

2485	Find the Pivot Integer	java

2487	Remove Nodes From Linked List	java

2490	Circular Sentence	java

2678	Number of Senior Citizens	java

2696	Minimum String Length After Removing Substrings	java

2778	Sum of Squares of Special Elements	java

2799	Count Complete Subarrays in an Array	java

2812	Number of Goodpairs	java

2843	Count Symmetric Integers	java

2914	Minimum Number of Changes to Make Binary String Beautiful	java

2942	Find Words Containing Character	java

2999	Count the Number of Powerful Integers	java

3042	Count Prefix and Suffix Pairs I	java

3066	Minimum Operations to Exceed Threshold Value II	java

3110	Score of a String	java

3163	String Compression II	java

3174	Clear Digits	java

3217	Delete Nodes From Linked List Presentin Array	java

3606	Coupon Code Validator	java

Solved 0 / 370 problems

Introductory Problems

#	Problem
1068	Weird Algorithm
1083	Missing Number
1069	Repetitions
1094	Increasing Array
1070	Permutations
1071	Number Spiral
1072	Two Knights
1092	Two Sets
1617	Bit Strings
1618	Trailing Zeros
1754	Coin Piles
1755	Palindrome Reorder
2205	Gray Code
2165	Tower of Hanoi
1622	Creating Strings
1623	Apple Division
1624	Chessboard and Queens
3399	Raab Game I
3419	Mex Grid Construction
3217	Knight Moves Grid
3311	Grid Coloring I
2431	Digit Queries
1743	String Reorder
1625	Grid Path Description

Sorting and Searching

#	Problem
1621	Distinct Numbers
1084	Apartments
1090	Ferris Wheel
1091	Concert Tickets
1619	Restaurant Customers
1629	Movie Festival
1640	Sum of Two Values
1643	Maximum Subarray Sum
1074	Stick Lengths
2183	Missing Coin Sum
2216	Collecting Numbers
2217	Collecting Numbers II
1141	Playlist
1073	Towers
1163	Traffic Lights
3420	Distinct Values Subarrays
3421	Distinct Values Subsequences
2162	Josephus Problem I
2163	Josephus Problem II
2168	Nested Ranges Check
2169	Nested Ranges Count
1164	Room Allocation
1620	Factory Machines
1630	Tasks and Deadlines
1631	Reading Books
1641	Sum of Three Values
1642	Sum of Four Values
1645	Nearest Smaller Values
1660	Subarray Sums I
1661	Subarray Sums II
1662	Subarray Divisibility
2428	Distinct Values Subarrays II
1085	Array Division
1632	Movie Festival II
1644	Maximum Subarray Sum II

Dynamic Programming

#	Problem
1633	Dice Combinations
1634	Minimizing Coins
1635	Coin Combinations I
1636	Coin Combinations II
1637	Removing Digits
1638	Grid Paths I
1158	Book Shop
1746	Array Description
2413	Counting Towers
1639	Edit Distance
3403	Longest Common Subsequence
1744	Rectangle Cutting
3359	Minimal Grid Path
1745	Money Sums
1097	Removal Game
1093	Two Sets II
3314	Mountain Range
1145	Increasing Subsequence
1140	Projects
1653	Elevator Rides
2181	Counting Tilings
2220	Counting Numbers
1748	Increasing Subsequence II

Graph Algorithms

#	Problem
1192	Counting Rooms
1193	Labyrinth
1666	Building Roads
1667	Message Route
1668	Building Teams
1669	Round Trip
1194	Monsters
1671	Shortest Routes I
1672	Shortest Routes II
1673	High Score
1195	Flight Discount
1197	Cycle Finding
1196	Flight Routes
1678	Round Trip II
1679	Course Schedule
1680	Longest Flight Route
1681	Game Routes
1202	Investigation
1750	Planets Queries I
1160	Planets Queries II
1751	Planets Cycles
1675	Road Reparation
1676	Road Construction
1682	Flight Routes Check
1683	Planets and Kingdoms
1684	Giant Pizza
1686	Coin Collector
1691	Mail Delivery
1692	De Bruijn Sequence
1693	Teleporters Path
1690	Hamiltonian Flights
1689	Knight's Tour
1694	Download Speed
1695	Police Chase
1696	School Dance
1711	Distinct Routes

Range Queries

#	Problem
1646	Static Range Sum Queries
1647	Static Range Minimum Queries
1648	Dynamic Range Sum Queries
1649	Dynamic Range Minimum Queries
1650	Range Xor Queries
1651	Range Update Queries
1652	Forest Queries
1143	Hotel Queries
1749	List Removals
1144	Salary Queries
2166	Prefix Sum Queries
2206	Pizzeria Queries
3304	Visible Buildings Queries
3163	Range Interval Queries
1190	Subarray Sum Queries
3226	Subarray Sum Queries II
1734	Distinct Values Queries
3356	Distinct Values Queries II
2416	Increasing Array Queries
1664	Movie Festival Queries
1739	Forest Queries II
1735	Range Updates and Sums
1736	Polynomial Queries
1737	Range Queries and Copies
2184	Missing Coin Sum Queries

Tree Algorithms

#	Problem
1674	Subordinates
1130	Tree Matching
1131	Tree Diameter
1132	Tree Distances I
1133	Tree Distances II
1687	Company Queries I
1688	Company Queries II
1135	Distance Queries
1136	Counting Paths
1137	Subtree Queries
1138	Path Queries
2134	Path Queries II
1139	Distinct Colors
2079	Finding a Centroid
2080	Fixed-Length Paths I
2081	Fixed-Length Paths II

Mathematics

#	Problem
2164	Josephus Queries
1095	Exponentiation
1712	Exponentiation II
1713	Counting Divisors
1081	Common Divisors
1082	Sum of Divisors
2182	Divisor Analysis
2185	Prime Multiples
2417	Counting Coprime Pairs
3396	Next Prime
1079	Binomial Coefficients
1715	Creating Strings II
1716	Distributing Apples
1717	Christmas Party
3397	Permutation Order
3398	Permutation Rounds
2064	Bracket Sequences I
2187	Bracket Sequences II
2209	Counting Necklaces
2210	Counting Grids
1722	Fibonacci Numbers
1096	Throwing Dice
1723	Graph Paths I
1724	Graph Paths II
3154	System of Linear Equations
3355	Sum of Four Squares
3406	Triangle Number Sums
1725	Dice Probability
1726	Moving Robots
1727	Candy Lottery
1728	Inversion Probability
1729	Stick Game
1730	Nim Game I
1098	Nim Game II
1099	Stair Game
2207	Grundy's Game
2208	Another Game

String Algorithms

#	Problem
1731	Word Combinations
1753	String Matching
1732	Finding Borders
1733	Finding Periods
1110	Minimal Rotation
1111	Longest Palindrome
3138	All Palindromes
1112	Required Substring
2420	Palindrome Queries
2102	Finding Patterns
2103	Counting Patterns
2104	Pattern Positions
2105	Distinct Substrings
1149	Distinct Subsequences
2106	Repeating Substring
2107	String Functions
3225	Inverse Suffix Array
1113	String Transform
2108	Substring Order I
2109	Substring Order II
2110	Substring Distribution

Geometry

#	Problem
2189	Point Location Test
2190	Line Segment Intersection
2191	Polygon Area
2192	Point in Polygon
2193	Polygon Lattice Points
2194	Minimum Euclidean Distance
2195	Convex Hull
3410	Maximum Manhattan Distances
3411	All Manhattan Distances
1740	Intersection Points
3427	Line Segments Trace I
3428	Line Segments Trace II
3429	Lines and Queries I
3430	Lines and Queries II
1741	Area of Rectangles
1742	Robot Path

Advanced Techniques

#	Problem
1628	Meet in the Middle
2136	Hamming Distance
3360	Corner Subgrid Check
2137	Corner Subgrid Count
2138	Reachable Nodes
2143	Reachability Queries
2072	Cut and Paste
2073	Substring Reversals
2074	Reversals and Sums
2076	Necessary Roads
2077	Necessary Cities
2078	Eulerian Subgraphs
2084	Monster Game I
2085	Monster Game II
2086	Subarray Squares
2087	Houses and Schools
2088	Knuth Division
2111	Apples and Bananas
2112	One Bit Positions
2113	Signal Processing
2101	New Roads Queries
2133	Dynamic Connectivity
2121	Parcel Delivery
2129	Task Assignment
2130	Distinct Routes II

Sliding Window Problems

#	Problem
3220	Sliding Window Sum
3221	Sliding Window Minimum
3426	Sliding Window Xor
3405	Sliding Window Or
3222	Sliding Window Distinct Values
3224	Sliding Window Mode
3219	Sliding Window Mex
1076	Sliding Window Median
1077	Sliding Window Cost
3223	Sliding Window Inversions
3227	Sliding Window Advertisement

Interactive Problems

#	Problem
3112	Hidden Integer
3139	Hidden Permutation
3305	K-th Highest Score
3228	Permuted Binary Strings
3273	Colored Chairs
3140	Inversion Sorting

Bitwise Operations

#	Problem
1146	Counting Bits
1655	Maximum Xor Subarray
3191	Maximum Xor Subset
3211	Number of Subset Xors
3192	K Subset Xors
3233	All Subarray Xors
2419	Xor Pyramid Peak
3194	Xor Pyramid Diagonal
3195	Xor Pyramid Row
1654	SOS Bit Problem
3141	And Subset Count

Construction Problems

#	Problem
2214	Inverse Inversions
2215	Monotone Subsequences
3422	Third Permutation
3423	Permutation Prime Sums
1697	Chess Tournament
3424	Distinct Sums Grid
2423	Filling Trominos
2418	Grid Path Construction

Advanced Graph Problems

#	Problem
3303	Nearest Shops
1134	Prüfer Code
1702	Tree Traversals
1757	Course Schedule II
1756	Acyclic Graph Edges
2177	Strongly Connected Edges
2179	Even Outdegree Edges
1707	Graph Girth
3357	Fixed Length Walk Queries
3111	Transfer Speeds Sum
3407	MST Edge Check
3408	MST Edge Set Check
3409	MST Edge Cost
1677	Network Breakdown
3114	Tree Coin Collecting I
3149	Tree Coin Collecting II
1700	Tree Isomorphism I
1701	Tree Isomorphism II
1699	Flight Route Requests
1703	Critical Cities
1203	Visiting Cities
3308	Graph Coloring
3158	Bus Companies
3358	Split into Two Paths
1704	Network Renovation
1705	Forbidden Cities
1752	Creating Offices
1685	New Flight Routes

Counting Problems

#	Problem
3413	Filled Subgrid Count I
3414	Filled Subgrid Count II
3415	All Letter Subgrid Count I
3416	All Letter Subgrid Count II
3417	Border Subgrid Count I
3418	Border Subgrid Count II
3400	Raab Game II
1080	Empty String
2229	Permutation Inversions
2176	Counting Bishops
2228	Counting Sequences
1078	Grid Paths II
1075	Counting Permutations
2429	Grid Completion
2421	Counting Reorders
3232	Tournament Graph Distribution
3157	Collecting Numbers Distribution
2415	Functional Graph Distribution

Additional Problems I

#	Problem
1087	Shortest Subsequence
3150	Distinct Values Sum
3190	Distinct Values Splits
1670	Swap Game
3175	Beautiful Permutation II
2422	Multiplication Table
3151	Bubble Sort Rounds I
3152	Bubble Sort Rounds II
3306	Nearest Campsites I
3307	Nearest Campsites II
1142	Advertisement
2186	Special Substrings
3169	Counting LCM Arrays
3193	Square Subsets
3294	Subarray Sum Constraints
3213	Water Containers Moves
3214	Water Containers Queries
2425	Stack Weights
3301	Maximum Average Subarrays
3302	Subsets with Fixed Average
3361	Two Array Average
1747	Pyramid Array
3404	Permutation Subsequence
1188	Bit Inversions
1086	Writing Numbers
2427	Letter Pair Move Game
1147	Maximum Building I
1162	Sorting Methods
1191	Cyclic Array
2414	List of Sums

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