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DevEval
LibraryPractice
  1. Problems
  2. Intervals

Topic

Intervals problems

23 problems: 4 Easy, 14 Medium, 5 Hard.

Easy (4)

  • Total Time Covered
  • Maximum Population Year
  • Meeting Rooms
  • Merge Two Binary Trees

Medium (14)

  • Merge Intervals
  • Meeting Rooms II
  • Insert Interval
  • Non-overlapping Intervals
  • Minimum Number of Arrows to Burst Balloons
  • My Calendar I
  • My Calendar II
  • Random Point in Non-overlapping Rectangles
  • Video Stitching
  • Find Right Interval
  • Maximum Length of Pair Chain
  • Meeting Scheduler
  • Books Whose Peak Simultaneous Loans Exceed Copies
  • Conflicting Room Reservations

Hard (5)

  • Minimum Interval to Include Each Query
  • Maximum Profit in Job Scheduling
  • Employee Free Time
  • Last-Touch Ad Attribution With Windows and Expiry
  • Open Refund Window Remaining Balance

Other topics

  • Array414
  • Math223
  • String204
  • Dynamic Programming142
  • Hash Table125
  • SQL116
  • Tree93
  • Matrix83
  • Sorting83
  • Simulation66
  • Greedy65
  • Binary Search61
  • Machine Learning59
  • Two Pointers57
  • Stack50
  • Graph49
  • Data Engineering48
  • Bit Manipulation47
  • Heap47
  • Sliding Window44
  • Prefix Sum42
  • Aggregation38
  • Design37
  • Backtracking32
  • Linked List32
  • Breadth-First Search30
  • Depth-First Search27
  • Combinatorics25
  • Statistics25
  • Number Theory24
  • Binary Search Tree23
  • Joins18
  • Divide and Conquer17
  • Union Find17
  • Geometry16
  • Recursion16
  • Backend Systems12
  • String Matching12
  • Data Integrity11
  • Shortest Path11
  • Queue10
  • Subqueries9
  • Topological Sort9
  • Trie7
  • Game Theory6
  • Window Functions6
  • API3
  • Brainteaser3
  • Probability3
  • Reliability3
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