Problem Solving

Here we have notes on the HackerRank Problem Solving challenges track.

• https://www.hackerrank.com/domains/algorithms

Note

The problem solving track in HackerRank is essentially an algorithms track.

• Diagonal Difference
  • JavaScript
    • Solution 1 with nested loops
    • Solution 2 with single loop
• Birthday Cake Candles
  • JavaScript
    • Solution 1 with two non-nested loops
    • Solution 2 with single loop and frequency counter
• Compare The Triplets
  • JavaScript
    • Solution 1
• Grading Students
  • JavaScript
    • Solution 1
    • Solution 2
• Plus Minus
  • JavaScript
    • Solution 1 with some helpers
    • Solution 2 frequency counter
• Sherlock and Array
  • JavaScript
    • Solution 1 with nested loops
    • Solution 2 with accumulators
• Staircase
  • JavaScript
    • Solution 1
    • Solution 2
• Strong Password
  • JavaScript
    • Solution 1
    • Solution 2
• Time Conversion
  • JavaScript
    • Solution 1
    • Solution 2 using ramda and helpers
    • Solution 3 with ramda pipe
• Camel Case
  • JavaScript
    • Solution 1 with regexp
    • Solution 2 with includes()
    • Solution 3 with regex split
• Ice Cream Parlor
  • JavaScript
    • Solution 1
    • Solution 2
• Missing Numbers
  • JavaScript
    • Solution 1
    • Solution 2 with helper
    • Solution 3 with sets, spread, sort and splice
• Mini Max Sum
  • JavaScript
    • Solution 1
    • Solution 2