String Manipulation Challenges 🚀

This repo consists of common string challenges that may appear during an iOS interview. They're helpful if you're sharpening your Swift skills and fun to do! Last updated - February 8, 2021.

Language 🐥

• Swift 5.3

Question List ✅

• Remove a specific character

• Remove duplicate letters

• Reverse a given word

• Rotate string right by n characters

• Rotate string left by n characters

• Determine if string is a palindrome

• Determine if two strings are an anagram

• Determine if letters in a string are unique

• Determine if two strings contain the same characters

• Determine if a string has digits

• Determine if two strings are identical in length but have no more than three different letters

• Determine if one string is a rotation of another

• Determine if a string is a substring of another

• Return the first non-repeating character

• Return all unique characters

• Return duplicate characters

• Return characters repeated n times

• Return the sum of a string

• Return the number of times a specific character appears

• Return a string with multiple spaces replaced with a single space

• Return a tuple containing the number of vowels and consonants in a given string

• Return the most common character

• Return all permutations of a string

• Return a single string from an array of names

• Return the longest prefix

Installing 🤖

• Download the StringManipulationQuestions playground file to view the questions without the answers.
• Download the StringManipulationAnswers playground to view questions and my answers.

References 🔖

• String: Practice Problems
• Swift-Algorithms-Strings