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Careem

Challenges: 22Easy: 7Medium: 12Hard: 3

This Careem coding interview set pulls together 22 challenges, with a mix of 7 easy, 12 medium, 3 hard. The problems lean on dynamic-programming, graphs, topological-sort, greedy, intervals, so you can drill the patterns that come up most and walk into the interview ready.

Topics this company tests

Careem coding challenges

  • Cache Invalidation Planner

    Difficulty: HardTopics: dynamic-programming, graphs, topological-sort

  • Delivery Time Window Route

    Difficulty: HardTopics: greedy, intervals, simulation

  • Locale Slug Normalizer

    Difficulty: EasyTopics: parsing, strings

  • Meeting Room Scheduler

    Difficulty: MediumTopics: heaps, intervals, sorting

  • Buildings Receiving Sunlight

    Difficulty: MediumTopics: arrays, monotonic-stack, stack

  • Keys and Rooms

    Difficulty: MediumTopics: bfs, dfs, graph

  • Kth Largest Element in Array

    Difficulty: MediumTopics: arrays, heap, quickselect, sorting

  • Level Order Traversal

    Difficulty: MediumTopics: bfs, queue, trees

  • Longest Palindrome Build

    Difficulty: EasyTopics: greedy, hash-map, strings

  • LRU Cache Operations

    Difficulty: HardTopics: design, hash-map, linked-list

  • Max Consecutive Ones

    Difficulty: EasyTopics: arrays

  • Max Consecutive Ones III

    Difficulty: MediumTopics: arrays, sliding-window

  • Maximum Subarray

    Difficulty: MediumTopics: arrays, dynamic-programming

  • Number of 1 Bits

    Difficulty: EasyTopics: bit-manipulation

  • Palindrome Permutation

    Difficulty: EasyTopics: bit-manipulation, hash-map, strings

  • Rotate Image

    Difficulty: MediumTopics: arrays, math, matrix

  • Top K Frequent Elements

    Difficulty: MediumTopics: arrays, hash-map, heap, sorting

  • Valid Anagram

    Difficulty: EasyTopics: hash-map, sorting, strings

  • Valid Parentheses

    Difficulty: EasyTopics: stack, strings

  • Ride Demand Heatmap

    Difficulty: MediumTopics: counting, hash-map, matrix

  • Sliding Log Rate Limiter

    Difficulty: MediumTopics: arrays, simulation, sliding-window

  • Warehouse Slot Packing

    Difficulty: MediumTopics: greedy, sorting, two-pointers

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