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Python heap problems

Always know the smallest or largest item with heaps and heapq, on Python problems with tests.

Start with Priority To-Do List

Beginner

  1. 260. Priority To-Do ListUrgent jobs first, and fair play when two are equally urgent45 XP10 min

Intermediate

  1. 287. Running Top ThreeAn arcade high-score table that updates after every single game65 XP12 min
  2. 341. Cheapest Meal CombosTwo sorted menus and the cheapest ways to pair them up90 XP18 min
  3. 342. Shortest Job FirstOne processor, a queue of jobs, and a rule for who goes next90 XP18 min

Advanced

  1. 371. Pick Projects to Grow CapitalStart small, pick projects wisely, and finish as rich as you can130 XP25 min
  2. 395. Stock Price TrackerPrices arrive late and out of order, and some of them are wrong140 XP30 min
  3. 419. Busiest Meeting RoomMeetings pile up, rooms run out, and one room ends up the busiest160 XP35 min
  4. 424. Median of Every WindowThe middle value of a moving window, one step at a time160 XP35 min
  5. 428. City SkylineSeen from far away, a crowd of buildings becomes a single outline170 XP40 min

Expert

  1. 460. Smallest Range Covering Every ListOne number from every list, all squeezed into the narrowest band230 XP40 min

Other topics

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