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TikTok SDE 1

The 36 highest-frequency questions from last 6 months. Finish the strongest signals first.

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Top questions 36

Done	Question	LeetCode
Mark LRU Cache completed	LRU Cache	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark All O`one Data Structure completed	All O`one Data Structure	Solve
Mark Cheapest Flights Within K Stops completed	Cheapest Flights Within K Stops	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Find First and Last Position of Element in Sorted Array completed	Find First and Last Position of Element in Sorted Array	Solve
Mark Find Median from Data Stream completed	Find Median from Data Stream	Solve
Mark Gas Station completed	Gas Station	Solve
Mark Longest Mountain in Array completed	Longest Mountain in Array	Solve
Mark Longest Substring with At Most K Distinct Characters completed	Longest Substring with At Most K Distinct Characters	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Number of Distinct Islands completed	Number of Distinct Islands	Solve
Mark Path Sum III completed	Path Sum III	Solve
Mark Possible Bipartition completed	Possible Bipartition	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Subsets completed	Subsets	Solve
Mark Basic Calculator II completed	Basic Calculator II	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Count Number of Nice Subarrays completed	Count Number of Nice Subarrays	Solve
Mark Decode String completed	Decode String	Solve
Mark Design HashMap completed	Design HashMap	Solve
Mark Fruit Into Baskets completed	Fruit Into Baskets	Solve
Mark Kth Largest Element in an Array completed	Kth Largest Element in an Array	Solve
Mark Longest Consecutive Sequence completed	Longest Consecutive Sequence	Solve
Mark Longest Valid Parentheses completed	Longest Valid Parentheses	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Partition Array for Maximum Sum completed	Partition Array for Maximum Sum	Solve
Mark Product of the Last K Numbers completed	Product of the Last K Numbers	Solve
Mark Reverse Nodes in k-Group completed	Reverse Nodes in k-Group	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Serialize and Deserialize N-ary Tree completed	Serialize and Deserialize N-ary Tree	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark Subarray Sums Divisible by K completed	Subarray Sums Divisible by K	Solve
Mark Text Justification completed	Text Justification	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Word Search completed	Word Search	Solve