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Recently added: 128 Longest Consecutive Sequence, 347 Top K Frequent Elements, 045 Jump Game 2, 228 Summary Ranges, 219 Contains Duplicate 2

leetcode

128 Longest Consecutive Sequence - 2023-05-20
347 Top K Frequent Elements - 2023-05-13
045 Jump Game 2 - 2023-05-13
228 Summary Ranges - 2023-05-13
219 Contains Duplicate 2 - 2023-05-13
145 Binary Tree Postorder Traversal - 2023-05-07
119 Pascal Triangle 2 - 2023-05-07
118 Pascal Triangle - 2023-05-07
110 Balanced Binary Tree - 2023-04-05
416 Partition Equal Subset Sum - 2022-03-26
518 Coin Change 2 - 2022-03-25
983 Minimum Cost For Tickets - 2022-03-24
494 Target Sum - 2022-03-23
1143 Longest Common Subsequence - 2022-03-22
139 Word Break - 2022-03-22
290 Word Pattern - 2022-03-21
441 Arranging Coins - 2022-03-21
374 Guess Number Higher Or Lower - 2022-03-21
094 Binary Tree Inorder Traversal - 2022-03-21
448 Find All Numbers Disappeared In A Array - 2022-03-21
160 Intersection Of Two Linked Lists - 2022-03-21
724 Find Pivot Index - 2022-03-21
225 Implement Stack Using Queues - 2022-03-21
605 Can Place Flowers - 2022-03-21
191 Number Of 1 Bits - 2022-03-21
205 Isomorphic Strings - 2022-03-21
263 Ugly Number - 2022-03-20
155 Min Stack - 2022-03-19
1299 Replace Elements With Greatest Element On Right Side - 2022-03-19
202 Happy Number - 2022-03-19
234 Palindrome Linked List - 2022-03-19
167 Two Sum 2 - 2022-03-18
054 Spiral Matrix - 2022-03-06
023 Merge K Sorted Lists - 2022-03-04
019 Remove Nth Node From End Of List - 2022-03-04
322 Coin Change - 2021-03-16
287 Find The Duplicate Number - 2021-03-02
075 Sort Colors - 2021-02-03
016 Three Sum Closest - 2021-02-03
572 Subtree Of Another Tree - 2021-01-31
442 Find All Duplicates In An Array - 2021-01-31
543 Diameter Of Binary Tree - 2021-01-31
1672 Richest Customer Wealth - 2021-01-31
1480 Running Sum Of 1D Array - 2021-01-31
437 Path Sum 3 - 2021-01-31
235 Lowest Common Ancestor Of A Binary Search Tree - 2021-01-31
230 Kth Smallest Element In A Bst - 2021-01-31
211 Design Add And Search Words Data Structure - 2021-01-31
199 Binary Tree Right Side View - 2021-01-31
113 Path Sum 2 - 2021-01-30
124 Binary Tree Maximum Path Sum - 2021-01-30
112 Path Sum - 2021-01-30
107 Binary Tree Level Order Traversal 2 - 2021-01-30
105 Construct Binary Tree From Preorder And Inorder Traversal - 2021-01-30
103 Binary Tree Zigzag Level Order Traversal - 2021-01-25
606 Construct String From Binary Tree - 2021-01-25
041 First Missing Positive - 2021-01-25
011 Container With Most Water - 2021-01-01
653 Two Sum Iv Input Is Bst - 2020-12-12
108 Convert Sorted Array To Binary Search Tree - 2020-12-08
669 Trim A Binary Search Tree - 2020-12-07
637 Average Of Levels In Binary Tree - 2020-12-07
872 Leaf Similar Tree - 2020-12-07
226 Invert Binary Tree - 2020-12-06
965 Univalued Binary Tree - 2020-12-06
559 Maximum Depth Of Tree - 2020-12-06
1022 Sum Of Root To Leaf Binary Numbers - 2020-12-06
590 Postorder Traversal - 2020-12-06
589 Preorder Traversal - 2020-12-06
897 Increasing Order Search Tree - 2020-12-06
617 Merge Two Binary Trees - 2020-12-05
938 Range Sum Of Bst - 2020-12-05
102 Binary Tree Level Order Traversal - 2020-12-05
1051 Height Checker - 2020-05-01
700 Search In A Binary Search Tree - 2020-05-01
929 Unique Email Addresses - 2020-04-25
811 Subdomain Visit Count - 2020-04-25
1394 Find Lucky Integer In An Array - 2020-04-25
796 Rotate String - 2020-04-25
237 Delete Node In A Linked List - 2020-04-25
1103 Distribute Candies To People - 2020-04-25
1417 Reformat The String - 2020-04-23
1029 Two City Scheduling - 2020-04-23
977 Squares Of A Sorted Array - 2020-04-21
905 Sort Array By Parity - 2020-04-21
1374 Generate A String With Characters That Have Odd Counts - 2020-04-21
1351 Count Negative Numbers In A Sorted Matrix - 2020-04-21
1207 Unique Number Of Occurrences - 2020-04-20
1304 Find N Unique Integers Sum Up To Zero - 2020-04-20
709 To Lower Case - 2020-04-20
414 Third Maxmium Number - 2020-04-20
1389 Create Target Array In The Given Order - 2020-04-20
1221 Split A String In Balanced Strings - 2020-04-20
1295 Find Numbers With Even Number Of Digits - 2020-04-20
1365 How Many Numbers Are Smaller Than The Current Number - 2020-04-20
771 Jewels Stones - 2020-04-20
1342 Number Of Steps To Reduce A Number To Zero - 2020-04-20
1108 Defanging An Ip Address - 2020-04-20
203 Remove Linked List Elements - 2020-04-20
1089 Duplicate Zeros - 2020-04-20
1287 Element Appearing More Than 25Percent In Sorted Array - 2020-04-19
345 Reverse Vowels Of A String - 2020-04-19
169 Majority Element - 2020-04-19
136 Single Number - 2020-04-19
111 Minimum Depth Of Binary Tree - 2020-04-19
104 Maximum Depth Of Binary Tree - 2020-04-19
1281 Subtract The Product And Sum Of Digits Of An Integer - 2020-04-18
1360 Number Of Days Between Two Dates - 2020-04-18
1154 Day Of The Year - 2020-04-18
268 Missing Numbers - 2020-04-18
819 Most Common Word - 2020-04-18
628 Maximum Product Of Three Numbers - 2020-04-18
485 Max Consecutive Ones - 2020-04-18
492 Construct The Rectangle - 2020-04-18
383 Ransome Note - 2020-04-18
409 Longest Palindrome - 2020-04-17
680 Valid Palindrome 2 - 2020-04-16
189 Rotate Array - 2020-04-11
412 Fizz Buzz - 2020-04-11
509 Fibonacci Number - 2020-04-11
507 Perfect Number - 2020-04-11
283 Move Zeros - 2020-04-11
367 Valid Perfect Square - 2020-04-11
258 Add Digits - 2020-04-11
344 Reverse String - 2020-04-10
1346 Check If N And Its Double Exist - 2020-04-10
1189 Maximum Number Of Balloons - 2020-04-10
867 Transpose Matrix - 2020-04-10
704 Binary Search - 2020-04-10
633 Sum Of Square Numbers - 2020-04-10
100 Same Tree - 2020-04-10
083 Remove Duplicates From Sorted List - 2020-04-10
088 Merge Sorted Array - 2020-04-10
066 Plus One - 2020-04-09
058 Length Of Last Word - 2020-04-09
498 Diagonal Traverse - 2020-04-09
170 Two Sum Iii - 2020-04-08
138 Copy List With Random Pointer - 2020-04-08
021 Merge Two Sorted Lists - 2020-04-08
007 Reverse Integer - 2020-04-08
038 Count And Say - 2020-04-08
028 Implement Strstr - 2020-03-31
027 Remove Element - 2020-03-31
026 Remove Duplciates From Sorted Array - 2020-03-31
048 Rotate Image - 2020-03-27
300 Longest Increasing Subsequence - 2020-03-26
198 House Robber - 2020-03-25
070 Climbing Stairs - 2020-03-25
062 Unique Paths - 2020-03-20
055 Jump Game - 2020-03-18
242 Valid Anagram - 2020-03-14
153 Find Minimum In Rotated Sorted Array - 2020-03-05
206 Reverse Linked List - 2020-03-05
035 Search Insert Position - 2020-03-05
006 Zigzag Conversion - 2020-03-03
033 Search In Rotated Sorted Array - 2020-03-03
002 Add Two Numbers - 2020-03-02
015 Three Sum - 2020-03-02
049 Group Anagrams - 2020-02-23
125 Valid Palindrome - 2020-02-23
020 Valid Parantheses - 2020-02-23
005 Longest Palindrome Substring - 2020-02-23
152 Maximum Product Subarray - 2020-02-23
003 Longest Substring Without Repeating Characters - 2020-02-23
053 Maximum Subarray - 2020-02-13
238 Product Of Array Except Self - 2020-01-18
217 Contains Duplicates - 2020-01-18
121 Best Time To Buy And Sell Stock - 2020-01-17
001 Two Sum - 2020-01-17

patterns

02 Count Of Subset Sum - 2022-03-27
01 Subset Sum - 2022-03-26
04 Find The Duplicate Number - 2022-03-18
03 Peak Index In A Mountain Array - 2022-03-18
01 Search A 2D Matrix 2 - 2022-03-18
02 Find Smallest Letter Greater Than Target - 2022-03-18
01 Search A 2D Matrix 2 - 2022-03-16
13 Letter Combinations Of A Phone Number - 2022-02-28
12 Palindrome Partitioning - 2022-02-28
11 Generate Parentheses - 2022-02-26
09 Combination Sum 2 - 2022-02-26
10 Combination Sum 3 - 2022-02-26
07 Combinations - 2022-02-26
08 Combination Sum - 2022-02-26
06 Permutations 2 - 2022-02-25
05 Permutations - 2022-02-25
04 Subsets 2 - 2022-02-25
02 Letter Case Permutation - 2022-02-25
03 Subsets - 2022-02-25
01 Word Search - 2022-02-24
05 Word Search - 2022-02-24
04 Clone Graph - 2022-02-13
03 Number Of Islands - 2022-02-13
02 Course Schedule 2 - 2022-02-10
03 Sort Colors - 2022-02-09
03 Subarray Product Less Than K - 2022-02-09
03 Subarray Product Less Than K - 2022-02-09
01 Course Schedule - 2022-02-09
01 Kth Largest Element In An Array - 2022-02-04
01 Backspace String Compare - 2022-02-04
02 Find The Duplicate Number - 2022-02-04
01 Longest Substring Without Repeating Characters - 2022-02-04
07 Permutation In String - 2022-02-04
02 Minimum Size Subarray Sum - 2022-02-04
05 Maximum Average Subarray 1 - 2022-02-04
04 Substrings Of Size Three With Distinct Characters - 2022-02-04
03 Longest Repeating Character Replacement - 2022-02-04
06 Fruit Baskets - 2022-02-04

companies

004 Climbing Stairs - 2022-01-31
003 Single Number - 2022-01-03
002 Missing Number - 2022-01-03
001 Contains Duplicates - 2022-01-03

algoexpert

01 Validate Subsequence - 2021-12-31
09 Depth First Search - 2021-12-31
02 Two Number Sum - 2021-12-31
06 Find Closest Value In Binary Search Tree - 2021-12-31
03 Depth First Search - 2020-12-18
04 Linked List - 2020-12-18
02 Find Closest Value In Binary Search Tree - 2020-12-17
01 Two Number Sum - 2020-12-17

cses

Increasingarray - 2021-12-31
Repeatitions - 2021-12-31
Weirdalgorithm - 2021-12-31
Missingnumber - 2021-12-31

geeksforgeeks

Deletekthofcircularlist - 2021-12-31
Deleteheadofcircularlinkedlist - 2021-12-31
Insertatendofcircularlist - 2021-12-31
Insertatbeginofcircularlist - 2021-12-30
Deletelastofdoublylist - 2021-12-30
Deleteheadofdoublylist - 2021-12-30
Reversedoublylist - 2021-12-30
Insertatendofdoublylist - 2021-12-30
Insertatbeginingdoublelinkedlist - 2021-12-30
Doublynode - 2021-12-30
Searchinlinkedlist - 2021-12-30
Insertatgivenposition - 2021-12-29
Deletelastnode - 2021-12-29
Deletefirstnode - 2021-12-29
Insertatend - 2021-12-29
Insertatbegin - 2021-12-29
Traversinglinkedlistrecursively - 2021-12-29
Node - 2021-12-29
Traversinglinkedlist - 2021-12-29
Leftmostrepeatingcharacter - 2021-12-29
Checkforanagram - 2021-12-29
Subsequenceofstringrecursive - 2021-12-28
Subsequenceofstring - 2021-12-28
Distinctelementsinwindow - 2021-12-28
Longestconsecutivesequence - 2021-12-27
Longestsubarraywithequalzeroesandones - 2021-12-27
Longestsubarraywithgivensum - 2021-12-27
Subarraywithgivensum - 2021-12-26
Subarraywithzerosum - 2021-12-26
Unionoftwounsortedarray - 2021-12-26
Intersectionoftwoarray - 2021-12-26
Countfrequency - 2021-12-26
Distinctelements - 2021-12-26
Rotatematrixanticlockwise - 2021-12-26
Transposeofmatrix - 2021-12-26
Matrixboundarytraversal - 2021-12-26
Matrixinsnakepattern - 2021-12-26
Repeatingelement - 2021-12-26
Twopointer - 2021-12-23
Searchinsortedrotatedarray - 2021-12-23
Findapeakelement - 2021-12-23
Searchininfinitearray - 2021-12-22
Countonesinsortedbinaryarray - 2021-12-22
Squareroot - 2021-12-22
Countoccurancesinsorted - 2021-12-22
Indexoflastoccurrance - 2021-12-21
Indexoffirstoccurrenceinsorted - 2021-12-21
Binarysearchrecursive - 2021-12-21
Binarysearchiterative - 2021-12-21
Nbonaccinumber - 2021-12-21
Findsubarraywithgivensum - 2021-12-04
Maximumsumofkconsecutive - 2021-11-14
Minimumconsecutiveflips - 2021-11-13
Majority - 2021-11-12
Maximumcircularsumsubarray - 2021-11-12
Longestoddevensubarray - 2021-11-11
Maximumsumsubarray - 2021-11-11
Maximumconsecutive1Inbinaryarray - 2021-11-11
Trappingrainwater - 2021-10-28
Stockbuyandsell - 2021-10-28
Leaderinarray - 2021-10-28
Maximumdifference - 2021-10-28
Frequenciesinsortedarray - 2021-10-28
Leftrotateanarraybydplaces - 2021-10-27
Leftrotateanarraybyone - 2021-10-27
Reversearray - 2021-10-27
Movezerostoend - 2021-10-27
Duplicatesinsortedarray - 2021-10-27
Duplicatesinarray - 2021-10-27
Isarraysorted - 2021-10-26
Secondlargestelement - 2021-10-26
Towerofhanoi - 2021-10-26
Largestelement - 2021-10-26
Generatesubsets - 2021-10-21
Ropecutting - 2021-10-21
Sumofdigits - 2021-10-19
Naturalnumberssum - 2021-10-19
Palindromecheck - 2021-10-19
Nthfibonacci - 2021-10-19
Print1Ton - 2021-10-19
Printnto1 - 2021-10-19
Simplerecursion - 2021-10-13
01 Analysis Of Algorithm - 2021-03-17

freecodecamp

05 Best Sum - 2021-10-14
04 How Sum - 2021-10-14
03 Can Sum - 2021-10-14
01 Fibonacci - 2021-10-13
02 Grid Traveler - 2021-10-13
02 Diff Two Arrays - 2020-03-31
01 Sum All Numbers In Range - 2020-03-31
03 Seek And Destroy - 2020-03-31
19 Slice And Splice - 2019-11-24
09 Slasher Flick - 2019-11-24
06 Repeat String - 2019-11-24
17 Finders Keeper - 2019-11-24
04 Largest Number - 2019-11-24
05 Confirm Ending - 2019-11-24
12 Seek Destroy - 2019-11-24
11 Falsy Bouncer - 2019-11-24
16 Fruits - 2019-11-24
01 Reverse String - 2019-11-24
15 Caesars Cipher - 2019-11-24
03 Palindrome - 2019-11-24
10 Mutations - 2019-11-24
13 Where Do I Belong - 2019-11-24
08 Chunky Monkey - 2019-11-24
02 Factorize Number - 2019-11-24
07 Truncate String - 2019-11-24
18 Boo Hoo - 2019-11-24

codesignal

04 Sudoku - 2020-03-31
03 Rotate Image - 2020-03-31
02 First Not Repeating Character - 2020-03-31
01 First Duplicate - 2020-03-26

100-algorithms

055 First Digit - 2019-12-16
052 Fermafactor - 2019-12-16
056 First Duplicate - 2019-12-16
051 Fare Estimator - 2019-12-16
054 Find Email Domain - 2019-12-16
053 Find Closest Pair - 2019-12-16
057 First Not Repeating Character - 2019-12-16
047 Extract Each Kth - 2019-12-14
045 Enclose In Brackets - 2019-12-14
042 Digit Degree - 2019-12-14
041 Different Symbols Naive - 2019-12-14
050 Fancy Ride - 2019-12-14
039 Crossing Sum - 2019-12-14
048 Extract Matrix Column - 2019-12-14
040 Deposit Profit - 2019-12-14
044 Election Winners - 2019-12-14
049 Factorialize A Number - 2019-12-14
043 Domain Type - 2019-12-14
046 Even Digits Only - 2019-12-14
037 Convert Celcius To Fahrenheit - 2019-12-11
031 Company Bot Strategy - 2019-12-11
032 Compare Integers - 2019-12-11
035 Contains Close Nums - 2019-12-11
038 Convert String - 2019-12-11
033 Compose Rangers - 2019-12-11
034 Confirm Ending - 2019-12-11
036 Contains Duplicates - 2019-12-11
029 Circle Of Numbers - 2019-12-10
030 Common Character Count - 2019-12-10
027 Chess Board Cell Color - 2019-12-09
024 Century From Year - 2019-12-09
028 Chunky Monkey - 2019-12-09
026 Check Palindrome - 2019-12-09
025 Character Parity - 2019-12-09
022 Candies - 2019-12-09
023 Case Insensitive Palindrome - 2019-12-09
016 Array Maximal Adjacent Difference - 2019-12-09
017 Array Previous Less - 2019-12-09
021 Box Blur - 2019-12-09
020 Bishop And Pawn - 2019-12-09
019 Avoid Obstacles - 2019-12-09
018 Array Replace - 2019-12-09
015 Array Max Consecutive Sum - 2019-12-09
010 Alternating Sums - 2019-12-07
011 Are Equally Strong - 2019-12-07
012 Are Similar - 2019-12-07
009 Alphabet Sub Sequence - 2019-12-07
008 Alphabetic Shift - 2019-12-07
007 Almost Increasing Sequence - 2019-12-07
014 Array Conversion - 2019-12-07
013 Array Change - 2019-12-07
006 All Longest Strings - 2019-12-05
001 Absolute Values Sum Minimization - 2019-12-05
004 Add Two Digits - 2019-12-05
002 Add - 2019-12-05
003 Add Border - 2019-12-05
005 Adjacend Elements Product - 2019-12-05

data-structures

01 Hash Table - 2019-12-04
01 Graph - 2019-12-03
02 Binary Search Tree - 2019-12-02
01 Tree - 2019-12-02
02 Josephus Challenge - 2019-12-01
03 Sieve Of Eratosthenes - 2019-12-01
01 Queue Using Linked List - 2019-12-01
04 Condense Numbers - 2019-11-30
List Node - 2019-11-30
02 Array Stack - 2019-11-30
03 Balance Parentheses - 2019-11-30
01 Linked List Stack - 2019-11-30
02 Pairwise Array Comparisons - 2019-11-29
01 Highest And Lowest Weather - 2019-11-29
01 Linked List - 2019-11-29

recursion

02 Palindrome - 2019-12-02
01 Fibonocci - 2019-12-02

hackerearth

01 Monk Takes Walk - 2019-11-30
03 Seating Arrangement - 2019-11-30
02 Prime - 2019-11-30
01 Anagrams - 2019-11-30

common

09 Reverse Number - 2019-11-30
10 Reverse String - 2019-11-30
04 Fiobancci - 2019-11-30
08 Prime Number - 2019-11-30
05 Hypotenus - 2019-11-30
06 Leap Year - 2019-11-30
07 Palindrome - 2019-11-30
03 Convert Decimal To Binary - 2019-11-24
02 Check Armstrong Number - 2019-11-24
01 Find Area Of Circle - 2019-11-24

project-euler

03 Largest Prime Factor - 2019-11-24
02 Even Fibonacci - 2019-11-24
04 Largest Product Two Number - 2019-11-24
01 Multiple 3 And 5 - 2019-11-24