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Koleksi solusi Cracking The Coding Interview di Hackerrank

Hackerrank - Cracking The Coding Interview

Koleksi solusi Cracking the Coding Interview Challenges di Hackkerrank (dengan komentar 💭)

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Coding Test

Kotlin

• Binary Gap
  • Given a positive integer N, returns the length of its longest binary gap. The function should return 0 if N doesn't contain a binary gap. link
  • Solution
• Earliest valid time
  • Given 6 digits of number (0..9), find the earliest valid time (HH:mm:ss), print "Not possible" if it is not possible.
  • Solution

Warm-up Challenges

Kotlin

• Sock Merchant
  • Challenge
  • Solution
• Counting Valleys
  • Challenge
  • Solution
• Jumping on the Clouds
  • Challenge
  • Solution
• Repeated String
  • Challenge
  • Solution 1
  • Solution 2 (Shorter but fail on edge cases)

Arrays

Kotlin

• Arrays: Left Rotation
  • Challenge
  • Solution
• 2D Array - DS
  • Challenge
  • Solution

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Old Hackerrank Category

Data Structures

Java ☕

• Arrays: Left Rotation
  • Challenge
  • Solution 1
  • Solution 2
• Linked Lists: Detect a Cycle
  • Challenge
  • Solution

Algorithms

Java ☕

• Sorting: Bubble Sort
  • Challenge
  • Solution

Techniques / Concepts

Java ☕

• Recursion: Fibonacci Numbers
  • Challenge
  • Solution