Total Questions
100
Medium problems make up 54.00 % of what Google asks, so that is the tier to prioritise.
Easy2424.00 %
Medium5454.00 %
Hard2222.00 %
Questions
Sort100 shown
- Two SumEasyfreq 100
- Trapping Rain WaterHardfreq 74
- Add Two NumbersMediumfreq 73
- Median of Two Sorted ArraysHardfreq 73
- Longest Common PrefixEasyfreq 69
- Valid ParenthesesEasyfreq 69
- Longest Substring Without Repeating CharactersMediumfreq 68
- Longest Consecutive SequenceMediumfreq 66
- Maximum SubarrayMediumfreq 63
- Search in Rotated Sorted ArrayMediumfreq 58
- Rotate ImageMediumfreq 57
- Find Median from Data StreamHardfreq 56
- Reverse Linked ListEasyfreq 56
- Jump GameMediumfreq 55
- Group AnagramsMediumfreq 55
- Maximal RectangleHardfreq 55
- 4SumMediumfreq 53
- Single NumberEasyfreq 52
- Jump Game IIMediumfreq 52
- Pascal's TriangleEasyfreq 52
- Text JustificationHardfreq 51
- Insert IntervalMediumfreq 51
- First Missing PositiveHardfreq 49
- Add BinaryEasyfreq 46
- Find the Duplicate NumberMediumfreq 46
- Valid AnagramEasyfreq 46
- Maximum Product SubarrayMediumfreq 43
- Isomorphic StringsEasyfreq 43
- Search a 2D MatrixMediumfreq 42
- String to Integer (atoi)Mediumfreq 42
- Minimum Path SumMediumfreq 41
- Wildcard MatchingHardfreq 41
- Copy List with Random PointerMediumfreq 41
- Same TreeEasyfreq 40
- Clone GraphMediumfreq 39
- Kth Smallest Element in a BSTMediumfreq 39
- Symmetric TreeEasyfreq 39
- Shortest PalindromeHardfreq 39
- 3Sum ClosestMediumfreq 37
- Missing NumberEasyfreq 36
- Flatten Binary Tree to Linked ListMediumfreq 36
- Group Shifted StringsMediumfreq 36
- The Skyline ProblemHardfreq 36
- Word Search IIHardfreq 35
- Graph Valid TreeMediumfreq 35
- Missing RangesEasyfreq 35
- Integer to RomanMediumfreq 34
- Game of LifeMediumfreq 34
- Contains Duplicate IIEasyfreq 34
- Binary Tree PathsEasyfreq 33
- Fraction to Recurring DecimalMediumfreq 32
- Binary Tree Right Side ViewMediumfreq 32
- Subsets IIMediumfreq 30
- Walls and GatesMediumfreq 30
- Implement Stack using QueuesEasyfreq 30
- 3Sum SmallerMediumfreq 29
- Wiggle SortMediumfreq 29
- Second Highest SalaryMediumfreq 29
- Number of Islands IIHardfreq 28
- Number of Digit OneHardfreq 28
- Flip GameEasyfreq 28
- Lowest Common Ancestor of a Binary Search TreeMediumfreq 28
- Zigzag IteratorMediumfreq 28
- Palindrome PermutationEasyfreq 26
- Paint FenceMediumfreq 26
- Strobogrammatic NumberEasyfreq 26
- Peeking IteratorMediumfreq 26
- Flatten 2D VectorMediumfreq 26
- Department Top Three SalariesHardfreq 25
- Basic Calculator IIMediumfreq 25
- Closest Binary Search Tree Value IIHardfreq 25
- Flip Game IIMediumfreq 25
- Unique Word AbbreviationMediumfreq 25
- Spiral Matrix IIMediumfreq 21
- CombinationsMediumfreq 21
- Populating Next Right Pointers in Each NodeMediumfreq 21
- Binary Tree Postorder TraversalEasyfreq 19
- Bitwise AND of Numbers RangeMediumfreq 17
- Word PatternEasyfreq 17
- Remove Invalid ParenthesesHardfreq 17
- Scramble StringHardfreq 17
- Remove Duplicates from Sorted List IIMediumfreq 15
- N-Queens IIHardfreq 15
- Minimum Depth of Binary TreeEasyfreq 15
- Best Time to Buy and Sell Stock IVHardfreq 15
- Insertion Sort ListMediumfreq 15
- Read N Characters Given Read4Easyfreq 15
- Factorial Trailing ZeroesMediumfreq 15
- Find Minimum in Rotated Sorted Array IIHardfreq 12
- Gray CodeMediumfreq 8
- Find the CelebrityMediumfreq 8
- Valid NumberHardfreq 8
- Rank ScoresMediumfreq 8
- Range Sum Query - MutableMediumfreq 8
- Binary Tree Level Order Traversal IIMediumfreq 5
- Paint HouseMediumfreq 5
- Strobogrammatic Number IIIHardfreq 5
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