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Strings

Challenges: 13Easy: 9Medium: 3Hard: 1

This Strings set gathers 13 coding problems, with a mix of 9 easy, 3 medium, 1 hard. They show up in interviews at companies like Anghami, Microsoft, Amazon, Meta, Careem, so you can master the pattern once and recognize it everywhere.

Strings coding problems

  • Config Version Comparator

    Difficulty: EasyAsked by: Anghami, Microsoft

  • Group Anagrams

    Difficulty: MediumAsked by: Amazon, Meta

  • Locale Slug Normalizer

    Difficulty: EasyAsked by: Careem, Kitopi

  • Longest Substring Without Repeating Characters

    Difficulty: MediumAsked by: Amazon, Meta, Microsoft

  • Big Number Subtraction

    Difficulty: MediumAsked by: Valeo Egypt

  • Longest Palindrome Build

    Difficulty: EasyAsked by: Careem

  • Palindrome Permutation

    Difficulty: EasyAsked by: Careem

  • Roman to Integer

    Difficulty: EasyAsked by: Siemens EDA

  • Valid Anagram

    Difficulty: EasyAsked by: Careem

  • Valid Parentheses

    Difficulty: EasyAsked by: Careem, SWVL

  • Valid Anagram

    Difficulty: EasyAsked by: Google, Microsoft

  • Valid Parentheses

    Difficulty: EasyAsked by: Amazon, Google, Meta

  • Word Break

    Difficulty: HardAsked by: Amazon, Apple, Meta

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