Total Questions
100
Medium problems make up 62.00 % of what Amazon asks, so that is the tier to prioritise.
Easy1919.00 %
Medium6262.00 %
Hard1919.00 %
Questions
Sort100 shown
- Two SumEasyfreq 100
- Trapping Rain WaterHardfreq 85
- Merge Sorted ArrayEasyfreq 82
- Longest Substring Without Repeating CharactersMediumfreq 82
- Longest Palindromic SubstringMediumfreq 79
- Valid ParenthesesEasyfreq 79
- Add Two NumbersMediumfreq 78
- Group AnagramsMediumfreq 77
- 3SumMediumfreq 76
- Container With Most WaterMediumfreq 75
- Median of Two Sorted ArraysHardfreq 74
- Roman to IntegerEasyfreq 73
- Merge IntervalsMediumfreq 73
- Longest Common PrefixEasyfreq 72
- Maximum SubarrayMediumfreq 71
- Letter Combinations of a Phone NumberMediumfreq 71
- Spiral MatrixMediumfreq 70
- Jump GameMediumfreq 69
- Climbing StairsEasyfreq 69
- Generate ParenthesesMediumfreq 68
- Palindrome NumberEasyfreq 68
- Reverse IntegerMediumfreq 68
- Merge k Sorted ListsHardfreq 67
- Merge Two Sorted ListsEasyfreq 67
- Rotate ImageMediumfreq 65
- Next PermutationMediumfreq 64
- Remove Duplicates from Sorted ArrayEasyfreq 64
- Search in Rotated Sorted ArrayMediumfreq 64
- Largest Rectangle in HistogramHardfreq 64
- SubsetsMediumfreq 60
- Valid SudokuMediumfreq 60
- Word SearchMediumfreq 59
- Set Matrix ZeroesMediumfreq 58
- Search a 2D MatrixMediumfreq 58
- First Missing PositiveHardfreq 57
- 4SumMediumfreq 57
- Jump Game IIMediumfreq 57
- Pow(x, n)Mediumfreq 57
- Remove Nth Node From End of ListMediumfreq 56
- Sort ColorsMediumfreq 56
- Regular Expression MatchingHardfreq 55
- Reverse Nodes in k-GroupHardfreq 55
- Validate Binary Search TreeMediumfreq 55
- Remove ElementEasyfreq 54
- Unique PathsMediumfreq 53
- Sqrt(x)Easyfreq 53
- Minimum Window SubstringHardfreq 52
- N-QueensHardfreq 52
- Zigzag ConversionMediumfreq 51
- Combination SumMediumfreq 51
- PermutationsMediumfreq 50
- Search Insert PositionEasyfreq 50
- Integer to RomanMediumfreq 49
- Plus OneEasyfreq 49
- Longest Valid ParenthesesHardfreq 48
- String to Integer (atoi)Mediumfreq 48
- Combination Sum IIMediumfreq 47
- Swap Nodes in PairsMediumfreq 47
- Reverse Linked List IIMediumfreq 47
- Same TreeEasyfreq 45
- Add BinaryEasyfreq 44
- Divide Two IntegersMediumfreq 44
- Insert IntervalMediumfreq 44
- 3Sum ClosestMediumfreq 44
- Decode WaysMediumfreq 43
- Minimum Path SumMediumfreq 43
- Remove Duplicates from Sorted Array IIMediumfreq 43
- Subsets IIMediumfreq 43
- Remove Duplicates from Sorted ListEasyfreq 43
- Binary Tree Inorder TraversalEasyfreq 42
- Search in Rotated Sorted Array IIMediumfreq 42
- Length of Last WordEasyfreq 42
- Wildcard MatchingHardfreq 42
- Edit DistanceMediumfreq 40
- Rotate ListMediumfreq 40
- Simplify PathMediumfreq 39
- Sudoku SolverHardfreq 39
- Count and SayMediumfreq 39
- Text JustificationHardfreq 39
- Multiply StringsMediumfreq 38
- Unique Binary Search Trees IIMediumfreq 37
- Partition ListMediumfreq 36
- Unique Paths IIMediumfreq 35
- CombinationsMediumfreq 31
- Permutation SequenceHardfreq 31
- Maximal RectangleHardfreq 30
- Gray CodeMediumfreq 29
- Permutations IIMediumfreq 26
- Spiral Matrix IIMediumfreq 26
- Remove Duplicates from Sorted List IIMediumfreq 25
- Restore IP AddressesMediumfreq 25
- Interleaving StringMediumfreq 25
- Substring with Concatenation of All WordsHardfreq 25
- Recover Binary Search TreeMediumfreq 25
- Unique Binary Search TreesMediumfreq 21
- Valid NumberHardfreq 14
- Scramble StringHardfreq 11
- N-Queens IIHardfreq 5
Where to go next
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