Coding Decoded

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The motive is to help the viewers of the Coding Decoded Channel land the job of their dreams and become better engineer! It is the one-stop solution for all your technical knowledge. Its primary focus is to help viewers build strong

• Data structures and algorithm concepts
• Coding Aptitude
• System Design
• Building Interviewing Aptitude
• Deciphering Interviewer's mindset
• Motivational talks

So far over since Aug,2020 we have solved 1000+ problems and published their video solutions. We daily publish solutions to leetcode monthly challenges. We also solve leetcode weekly contest questions as well.

You must be thinking, Why you should view Conding Decoded's content while there are so many others available on social media?

Meet Sunchit Dudeja, apart from being Founder of Coding Decoded, I am working as SDE-V at Adobe have more than 8 years of industry experience The in-depth knowledge you will get here, I am sure no other youtuber can ever share.

1. With more than 500+ design rounds taken, learn from the perspective of an interviewer
2. Learn from 8 years experienced professional working one of the leading company
3. Each video based on Real life examples
4. It is free of cost, no charges
5. Short videos <=15 mins

A picture is worth 1000 words, and a video is worth 100000+ words

Each video has a pictorial representation of the algorithm, test cases walk through and cherry on top is live coding session.

Hard work paid off. We have already reached our first milestone of 15k+ subscribers and hope to build the largest coding community.

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Looking for referral, time to catch me on telegram. We have more than 2000 developers working at all top notches and we regularly discuss problem that we face in day today development work for example referral, layoffs, chatgpt, bard, AI ML stuck. It is place where you full freedom of speech to put your opinion and helps others in the community. The peers of the community help each other with their queries, schedule mock interviews among themselves and bring in a little humour.

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It is a place where peers of the community help each other with their queries, schedule mock interviews among themselves and bring in a little humour.

Interviewing and building coding Aptitude

Leetcode Challenges

May 2022 Leetcode Solution Playlist

S.NO	Code Link	Video Link
1	CountingBits

April 2022 Leetcode Solution Playlist

S.NO	Code Link	Video Link
1	CountingBits
2	IsSubsequence
3	BaseballGame
4	BackspaceStringCompare
5	EvaluateDivision
6	IsGraphBipartite
7	SmallestStringWithSwaps
8	MinCostToConnectAllPoints
9	MinCostToConnectAllPoints
10	MinCostToConnectAllPoints
11	MinCostToConnectAllPoints
12	PeekingIterator
13	DesignUndergroundSystem
14	DesignHashSet
15	DesignHashMap
16	BinarySearchTreeIterator
17	RecoverBinarySearchTree
18	KthSmallestElementInABST
19	IncreasingOrderSearchTree
20	TrimABinarySearchTree
21	SearchinaBinarySearchTree
22	ConvertBSTtoGreaterTree
23	SpiralMatrixII
24	GameofLife
25	Shift2DGrid
26	KthLargestElementinaStream
27	3SumWithMultiplicity
28	ContainerWithMostWater
29	SwappingNodesinaLinkedList
30	NextPermutation
31	ValidPalindromeII
32	ReverseString

March 2022 Leetcode Solution Playlist

S.NO	Code Link	Video Link
1	CountingBits
2	IsSubsequence
3	ArithmeticSlices
4	ChampagneTower
5	DeleteAndEarn
6	CountAllValidPickupAndDeliveryOptions
7	MergeTwoSortedLists
8	LinkedListCycle
9	RemoveDuplicatesfromSortedListII
10	AddTwoNumbers
11	RotateList
12	CopyListWithRandomPointer
13	ValidParentheses
14	SimplifyPath
15	PartitionLabels
16	SmallestStringWithAGivenNumericValue
17	BoatsToSavePeople
18	TwoCityScheduling
19	BinarySearch
20	TheKWeakestRowsInAMatrix
21	SearchInRotatedSortedArrayII
22	SearchA2DMatrix
23	FindTheDuplicateNumber
24	SplitArrayLargestSum

February 2022 Leetcode Solution Playlist

S.NO	Code Link	Video Link
1	BestTimetoBuyandSellStock
2	FindAllAnagramsinaString
3	4SUMII
4	ContiguousArray
5	FindtheDifference
6	KdiffPairsinanArray
7	SubarraySumEqualsK
8	PermutationInString
9	Subsets
10	CombinationSum
11	RemoveKDigits
12	RemoveCoveredIntervals
13	MajorityElement
14	CloneGraph
15	SortList
16	ShortestPathVisitingAllNodes
17	MaximumWidthofBinaryTree

January 2022 Leetcode Solution Playlist

S.NO	Code Link	Video Link
1	BurstBalloon
2	PairsofSongsWithTotalDurationsDivisibleby60
3	FindTheTownJudge
4	ComplementofBase10Integer
4	ComplementofBase10Integer
5	PalindromePartitioning
6	CarPooling
7	LinkedListrRandomNode
8	CherryPickerII
9	RobotBoundedInCircle
9	AddBinary
10	SumofRootToLeafBinaryNumbers
11	InsertIntoABinarySearchTree.java
12	MinimumNumberOfArrowsToBurstBalloons.java
13	StringToIntegerAtoi.java
14	JumpGameIV.java
15	MaximizeDistancetoClosestPerson.java
16	CanPlaceFlowers.java
17	KokoEatingBananas.java
18	GasStation.java
19	StoneGameIV.java
20	SequentialDigits.java
21	DetectCapital.java
22	ValidMountain.java
22	MaximumXorOfTwoNumbersInAnArray.java
22	AddAndSearchWord.java
23	LaregstAreaOfHistorgam.java
23	RotateArray.java
24	RichestCustomerWealth.java

December 2021 Leetcode Solution Playlist

1. HouseRobber
2. OddEvenLinkedList
3. StreamOfCharacters
4. MinCostToMoveChipsToSamePosition
5. ConvertBinaryNumberInALinkedListToInteger
6. BinaryTreeTilt
7. DominoAndTrominoTiling
8. NthMagicalNumber
9. PartitionEqualSubsetSum
10. ConsecutiveCharacters
11. RangeSumofBST
12. InsertionSortList
13. MinimumHeightTrees
14. MaximalSquare
15. MinimumAbsoluteDifference
16. PowerOfTwo
17. CourseScheduleII
18. MergeInterval
19. KClosestPointstoOrigin
20. NumberComplement
21. MiddleoftheLinkedList
22. PopulatingNextRightPointersInEachNode
23. SmallestIntegerDivisiblebyK
24. MaximumDifferenceBetweenNodeAndAncestor

November 2021 Leetcode Solution Playlist

1. SurroundedRegions - Day 1
2. UniquePathsIII - Day 2
3. ArrangingCoins - Day 5
4. SingleNumbersIII - Day 6
5. MultiplyStrings - Day 7
6. UniqueBinarySearchTrees - Day 8
7. NumberOfValidWordsForEachPuzzle - Day 9
8. BestTimeToBuyAndSellStockII - Day 10
9. MinimumValueToGetPositiveStepbyStepSum - Day 11
10. RemoveLinkedListElements - Day 12
11. DailyTemperatures - Day 13
12. CombinationIterator - Day 14
13. LargestDivisibleSubset - Day 15
14. KthNumberinMultiplicationTable - Day 16
15. UniquePaths - Day 17
16. FindAllNumbersDisappearedinanArray - Day 18
17. HammingDistance - Day 19
18. SingleElementinaSortedArray - Day 20
19. ConstructBinaryTreeFromInorderAndPostorderTraversal - Day 21
20. LargestComponentSizeByCommonFactor - Day 23
21. IntervalListIntersections - Day 24
22. SearchInsertPosition - Day 26
23. ProductOfArrayExceptSelf - Day 27
24. AllPathsFromSourceToTarget - Day 28
25. AccountsMerge - Day 29
26. MaximalRectangle - Day 30

October 2021 Leetcode Solution Playlist

1. LongestCommonSubsequence - Day 1
2. DungeonGame - Day 2
3. JumpGame - Day 3
4. IslandPerimeter - Day 4
5. ClimbingStairs - Day 5
6. FindAllDuplicatesinanArray - Day 6
7. WordSearch - Day 7
8. ImplementTrie - Day 8
9. WordSearchII - Day 9
10. BitwiseAndOfNumbersRange - Day 10
11. DiameterOfBinaryTree - Day 11
12. GuessNumberHigherorLower - Day 12
13. ConstructBinarySearchTreeFromPreorderTraversal - Day 13
14. PerfectSquares - Day 14
15. BestTimeToBuyAndSellStockWithCooldown - Day 15
16. BestTimetoBuyandSellStockIII - Day 16
17. PathSumIII - Day 17
18. CousinsInBinaryTree - Day 18
19. NextGreaterElementI - Day 19
20. ReverseWordsInAString - Day 20
21. InsertDeleteGetRandomO(1) - Day 21
22. SortCharactersByFrequency) - Day 22
23. FindMinimumInRotatedSortedArrayII - Day 23
24. CountCompleteTreeNodes - Day 24
25. MinStack - Day 25
26. InvertBinaryTree - Day 26
27. SortColors - Day 27
28. LongestDuplicateSubstring - Day 27
29. FlattenaMultilevelDoublyLinkedList - Day 31

September 2021 Leetcode Challenge

September 2021 Leetcode Solution Playlist

1. ArrayNesting - Day 1
2. UniqueBinarySearchTreesII - Day 2
3. ErectTheFence - Day 3
4. SumOfDistancesInTree - Day 4
5. OrderlyQueue - Day 5
6. SlowestKey - Day 6
7. ReverseLinkedList - Day 7
8. ShiftingLetter - Day 8
9. LargestPlusSign - Day 9
10. ArithmeticSlicesIISubsequence - Day 10
11. BasicCalculator - Day 10
12. ReachableNodesInSubdividedGraph - Day 12
13. MaximumNumberofBalloons - Day 13
14. ReverseOnlyLetters - Day 14
15. LongestTurbulentSubarray - Day 15
16. SpiralMatrix - Day 16
17. IntersectionOfTwoArraysII - Day 17
18. ExpressionAddOperators - Day 18
19. Distinct Subsequences - Day 19
20. FindWinneronaTicTacToeGame - Day 19
21. MaxConsecutiveOnes - Day 21
22. MaximumLengthofaConcatenatedStringwithUniqueCharacters - Day 22
23. BreakAPalindrome - Day 23
24. NthTribonacciNumber - Day 24
25. ShortestPathinaGridwithObstaclesElimination - Day 25
26. TransformtoChessboard - Day 26
27. UniqueEmailAddresses - Day 27
28. SortArrayByParityII - Day 28
29. SplitLinkedListinParts - Day 29
30. PartitiontoKEqualSumSubsets - Day 30

August 2021 Leetcode Solution Playlist

August 2021 Leetcode Challenge

August 2021 Leetcode Solution Playlist

1. MakingALargeIsland - Day 1
2. StoneGame - Day 5
3. NaryTreeLevelOrderTraversal - Day 6
4. PalindromePartitioningII - Day 7
5. AddStrings - Day 9
6. FlipStringtoMonotoneIncreasing - Day 10
7. ArrayofDoubledPairs - Day 11
8. GroupAnangrams - Day 12
9. SetMatrixZeroes - Day 13
10. RemoveBoxes - Day 14
11. MinimumWindowSubstring - Day 15
12. RangeSumQueryImmutable - Day 16
13. CountGoodNodesinBinaryTree - Day 17
14. MaximumProductofSplittedBinaryTree - Day 19
15. ValidSudoku - Day 20
16. SudokuSolver - Day 21
17. TwoSumIVInputIsABST - Day 23
18. ComplexNumberMultiplication - Day 24
19. SumofSquareNumbers - Day 25
20. VerifyPreorderSerializationofaBinaryTree - Day 26
21. LongestUncommonSubsequenceII - Day 27
22. MaximumProfitInJobScheduling - Day 28
23. PatchingArray - Day 29
24. RangeAdditionII - Day 30
25. FindMinimuminRotatedSortedArray - Day 30
26. InvertBinaryTree - Day 26

July 2021 Leetcode Challenge Solutions

1. GrayCode - Day 1
2. FindKClosestElements - Day 2
3. MaxSumofRectangleNoLargerThanK - Day 3
4. CountVowelsPermutation - Day 4
5. ReshapeTheMatrix - Day 5
6. ReduceArraySizetoTheHalf - Day 6
7. KthSmallestElementinaSortedMatrix - Day 7
8. MaximumLengthofRepeatedSubarray - Day 8
9. LongestIncreasingSubsequence - Day 9
10. DecodeWaysII - Day 10
11. FindMedianfromDataStream - Day 11
12. IsomorphicStrings - Day 12
13. FindPeakElement - Day 13
14. CustomSortString - Day 14
15. ValidTriangleNumber - Day 15
16. 4Sum - Day 16
17. ThreeEqualParts - Day 17
18. ReverseNodesinkGroup - Day 18
19. LowestCommonAncestorofaBinarySearchTree - Day 19
20. ShuffleAnArray - Day 20
21. PushDominoes - Day 21
22. PartitionArrayintoDisjointIntervals - Day 22
23. BinaryTreePruning - Day 23
24. WordLadderII - Day 24
25. NonNegativeIntegerswithoutConsecutiveOnes - Day 25
26. ConvertSortedArraytoBinarySearchTree - Day 26
27. 3SumClosest - Day 27
28. BeautifulArray - Day 28
29. 01Matrix - Day 29
30. MapSumPairs - Day 30
31. TrappingRainWater - Day 31

June 2021 Leetcode Challenge Solution

1. MaxAreaofIsland - Day 1
2. InterleavingString - Day 2
3. MaximumAreaofaPieceofCakeAfterHorizontalandVerticalCuts - Day 3
4. MaximumAreaofaPieceofCakeAfterHorizontalandVerticalCutsg_Python
5. OpenTheLock - Day 4
6. MaximumPerformanceofaTeam - Day 5
7. LongestConsecutiveSequence - Day 6
8. MinCostClimbingStairs - Day 7
9. ConstructBinaryTreefromPreorderandInorderTraversal - Day 8
10. JumpGameVI - Day 9
11. MyCalendarI - Day 10
12. StoneGameVII - Day 11
13. MinimumNumberofRefuelingStops - Day 12
14. PalindromePairs - Day 13
15. MaximumUnitsonaTruck - Day 14
16. MaximumUnitsonaTruck - Day 15
17. GenerateParentheses - Day 16
18. NumberofSubarrayswithBoundedMaximum - Day 17
19. RangeSumMutable - Day 18
20. KInversePairsArray - Day 19
21. SwiminRisingWater - Day 20
22. Pascal'sTriangle - Day 21
23. NumberofMatchingSubsequences - Day 22
24. ReverseLinkedListII - Day 23
25. OutofBoundaryPaths - Day 24
26. RedundantConnection - Day 25
27. CountOfSmallerNumbersAfterSelf - Day 26
28. Candy - Day 27
29. RemoveAllAdjacentDuplicatesInString - Day 28
30. MaxConsecutiveOnesIII - Day 29
31. LowestCommonAncestorofaBinaryTree - Day 30

May 2021 Leetcode Challenge Solutions

1. PrefixAndSuffixSearch
2. CourseScheduleIII
3. RunningSumof1dArray
4. Non-decreasingArray
5. JumpGameII
6. ConvertSortedListToBST
7. DeleteOperationforTwoStrings
8. SuperPalindrome
9. ConstructTargetArrayWithMultipleSums
10. CountPrimes
11. MaximumPointsYouCanObtainfromCards
12. RangeSumQuery2D-Immutable
13. AmbiguousCoordinates
14. FlattenBinaryTreetoLinkedList
15. BinaryCameraTree
16. LongestStringChainSolution
17. FindDuplicateFileinSystem
18. MinimumMovestoEqualArrayElementsII
19. MinimumMovestoEqualArrayElementsII
20. BinaryTreeLevelOrderTraversal
21. FindandReplacePattern
22. NQueen
23. FindTheShortestSuperstring
24. ToLowerCase
25. EvaluateReversePolishNotation
26. PartitioningIntoMinimumNumberOfDeciBinaryNumbersg
27. maximum-product-of-word-lengths
28. MaximumErasureValue
29. NQueenII
30. MaximumGap
31. SearchSuggestionsSystem

April 2021 Leetcode Challenge Solutions

1. PalindromeLinkedList
2. OnesAndZeros
3. LongestValidParentheses
4. DesignCircularQueue
5. GlobalandLocalInversions
6. MinimumOperationstoMakeArrayEqual
7. determine-if-string-halves-are-alike
8. LetterCombinationPhone
9. ValidAlienDictionary
10. LongestIncreasingPath
11. DeepestLeavesSum
12. BeautifulArrangementII
13. FlattenedNestedList
14. PartitionList
15. FibonacciNos
16. remove-all-adjacent-duplicates-in-string-ii
17. PowerfulIntegers

March 2021 Leetcode Challenge Solution

1. Distribute Candies
2. Set Mismatch
3. Missing Number
4. Intersection Of Two Linked Lists
5. AverageofLevelsinBinaryTree
6. ShortEncodingofWords
7. DesignHashMap
8. AddRowToTree
9. IntegertoRoman
10. CoinChange
11. Check-if-a-string-contains-allbinary-codesofsize-K
12. BinaryTreesWithFactors
13. SwappingNodesinaLinkedList
14. EncodeandDecodeTinyURL
15. BestTimetoBuyandSellStockwithTransactionFee
16. GenerateRandomPointinaCircle
17. WiggleSubSequnce
18. KeysAndRooms
19. DesignUndergroundSystem
20. ReorderedPowerOf2
21. SpellChecker
22. 3SumWithMultiplicity
23. AdvantageShuffle
24. PacificAltaticWaterFlow
25. WordsSubset
26. PalindromicSubStrings
27. FlipBinaryTreeToMatchPreorderTraversal
28. RussianDollEnvelopes
29. StampingTheSequence

February 2021 Leetcode Challenge Solutions

1. No Of 1 bits
2. Trim Binary Search Tree
3. Linked List Cycle
4. LongestHarmoinousSubsequence
5. SimiplifyPaths
6. Binary Tree Right Side View
7. Shortest Distance to a Character
8. Peeking Iterator
9. convert-bst-to-greater-tree
10. Copy List with Random Pointer
11. Valid Anagram
12. NumberofStepstoReduceNumbertoZero
13. ShortestPathInAGird
14. IsGraphBipairate
15. TheKWeakestRowsinaMatrix
16. LetterCasePermutation
17. ContainerWithMostWater
18. ArthimeticSlicing
19. MinimumRemovetoMakeValidParentheses
20. ScoreOfParentheses
21. ShortestUnsortedContinuousSubarray
22. ValidateStackSequences
23. DivideTwoIntegers
24. MaximumFrequencyStack

January 2021 Leetcode Challenge Solution

1. Check Array Formation Through Concatenation
2. Find a Corresponding of a Binary Tree in a of That Tree
3. Beautiful Arrangement
4. Merge two sorted list
5. RemoveDuplicatesfromSortedListII
6. kth-missing-positive-number
7. Check If Two String Arrays are Equivalent
8. LongestSubstringWithoutRepeatingCharacters
9. WordLadder
10. MergeSortedArrays
11. AddTwoNumbers
12. BoatsToSavePeople
13. MinimumOperationsToReduceXToZero
14. GetMaximumInGeneratedArray
15. KthLargestElementInArray
16. CountSortedVowelStrings
17. MaxPairsWithKSum
18. LongestPalindromicSubstring.java
19. ValidParentheses.java
20. FindMostCompetitiveSubsequence.java
21. Determin2StringsAreClose.java
22. SortMatixDaigonally.java
23. MergeKSortedLists
24. MergeKSortedLists
25. CheckIfAll1'sAreatLeastLengthKPlacesAway
26. PathWithMinimumEffort
27. concatenation-of-consecutive-binary-numbers
28. smallest-string-with-a-given-numeric-value
29. VerticalOrderOfABinaryTree
30. MinimizeDeviationinArray
31. NextPermutation

December 2020 Leetcode Challenge Solutions

1. Maximum Depth Of Binary Tree
2. Linked List Random Node
3. Increasing Order SearchTree
4. Kth Factor Of N
5. Can Place Flower
6. PopulatingNextRightPointersInEachNodeII
7. RemoveDuplicatesFromSortedArrayII
8. Smallest Subtree with all the Deepest Nodes
9. Burst Balloon
10. Palindrome Partitioning
11. Squares Of Sorted Array
12. Validate Binary Search Tree
13. 4Sum II
14. Increasing Triplet Sequence
15. Cherry PickerII
16. SmallestRangeII
17. BalancedBinaryTree
18. NextGreaterElementIII
19. SwapNodesInPairs
20. Diagonal traverse
21. Decode Ways
22. Jump Game IV
23. Reach A Number
24. PseudoPalindromic Paths In A Binary Tree
25. Game Of Life
26. LaregstAreaOfHistorgam

November 2020 Leetcode Challenge

1. Merge Intervals
2. Decode String
3. RotatedSearchArrayII
4. NumbersAtNGivenDigitSet
5. UniqueMorseCodeWords
6. HouseRobberIII
7. BasicCalculatorII
8. SmallestIntegerDivisiblebyK
9. SubstringWithAtLeastKRepeatingCharacters
10. PartitionEqualSubsetSum
11. PartitionEqualSubsetSum
12. JumpGameIII
13. TheSkyLineProblem

September 2020 Leetcode Challenge

1. Largest Time for Given Digits
2. Contains Duplicate III
3. RepeatedSubstringPattern
4. PartitionLabels
5. AllElementsinTwoBinarySearchTrees
6. ImageOverlap
7. WordPattern
8. SumofRootToLeafBinaryNumbers
9. CompareVersionNumbers
10. BullsAndCows
11. MaximumProductSubArray
12. Comination Sum III
    1. Combination Sum without using Start variable
    2. Combination Sum using Start variable -InsertIntervals

August 2020 Leetcode Challenge Solutions

1. Detect Capitals
2. Design HashSet
   1. Design HashSet Time Extensive
   2. Design HashSet Space Extensive
3. Valid Palindrome
4. Power of Four
5. Add and Search Word
6. FindAllDuplicate
7. Vertical Travesal of Binary Tree
8. Path Sum III
9. Rotting Oranges
10. Excel Sheet Column Number
11. H Index
12. PascalsTriangleII
13. CombinationIterator
14. Longest Palindrome
15. Non Overlapping Intervals
16. Best Time To Buy And Sell Stock III.java
17. Distribute Candies To People.java
18. Numbers With Same Consecutive Differences.java
19. GoatLatin.java
20. ReoderList
21. SortArrayByParity
22. RandomPointInNonOverlappingRectangles
23. Stream of Characters
24. Sum Of Left Leaves
25. Minimum Cost Of Tickets
26. Fizz Buzz
27. First Right Interval
28. Implement Rand10 Using Rand7
29. PancakeSorting
30. LargestComponentSizebyCommonFactor
31. DeleteANodeInBst

Leetcode General Concepts

1. Longest Increasing Subsequence

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