My javascript solutions to Codility training lessions

Though not being as extensive as Leetcode, Codility provides free, categorized training lessons for those who are preparing for a coding interview. Here are my solutions to all of these lessons. The codility total scores are 100% for most of the solutions. For some problems that I could not find the solutions by myself, the ideas were then taken from (mostly) the legendary stackoverflow.

• Lesson 1: Iterations
  • Binary gap
• Lesson 2: Arrays
  • Cyclic rotation
  • Odd occurences in array
• Lesson 3: Time complexity
  • Frog jmp
  • Perm missing elem
  • Tape equilibrium
• Lesson 4: Counting elements
  • Frog river one
  • Perm check
  • Max counter
  • Missing interger
• Lesson 5: Prefix sums
  • Passing cars
  • Count div
  • Genomic range query
  • Min avg two slices
• Lesson 6: Sorting
  • Distinct
  • Max product of three
  • Triangle
  • Number of disc intersections (88%)
• Lesson 7: Stacks and queues
  • Brackets
  • Fish
  • Nesting
  • Stone wall
• Lesson 8: Leaders
  • Dominator
  • Equi leader
• Lesson 9: Maximum slice problem
  • Max profit
  • Max slice sum
  • Max double slice sum
• Lesson 10: Prime and composite numbers
  • Count factors
  • Min perimeter rectangle
  • Flags
  • Peaks
• Lesson 11: Sieve of Eratosthenes
  • Count non divisible
  • Count semi primes
• Lesson 12: Euclidean algorithm
  • Chocolates by numbers
  • Common prime divisors
• Lesson 13: Fibonacci numbers
  • Fib frog
  • Ladder
• Lesson 14: Binary search algorithm
  • Min max division
  • Nailing planks (50%)
• Lesson 15: Caterpillar method
  • Abs distinct
  • Count disctinct slices
  • Count triangles
  • Min abs sum of two
• Lesson 16: Greedy algorithms
  • Max non overlapping segments
  • Tie ropes
• Lesson 17: Dynamic programming
  • Number solitaire
  • Min abs sum