Codility

Become a better programmer!

In this repository you can find my answers to Codility lessons and challengers written in PHP.

Lesson 1: Iterations

• BinaryGap

Lesson 2: Arrays

• CyclicRotation
• OddOccurrencesInArray

Lesson 3: Time complexity

• TapeEquilibrium
• FrogJmp
• PermMissingElem

Lesson 4: Counting Elements

• PermCheck
• FrogRiverOne
• MissingInteger
• MaxCounters

Lesson 5: Prefix Sums

• CountDiv
• PassingCars
• GenomicRangeQuery
• MinAvgTwoSlice

Lesson 6: Sorting

• Distinct
• Triangle
• MaxProductOfThree

Lesson 7: Stacks and Queues

• Brackets
• Fish
• Nesting
• StoneWall

Lesson 8: Leader

• Dominator
• EquiLeader

Lesson 9: Maximum slice problem

• MaxDoubleSliceSum
• MaxProfit
• MaxSliceSum

Lesson 10: Prime and composite numbers

• MinPerimeterRectangle
• CountFactors
• Peaks
• Flags

Lesson 11: Sieve of Eratosthenes

• CountSemiprimes
• CountNonDivisible

Lesson 12: Euclidean algorithm

• ChocolatesByNumbers
• CommonPrimeDivisors

Lesson 13: Fibonacci numbers

• Ladder
• FibFrog

Lesson 14: Binary search algorithm

• MinMaxDivision
• NailingPlanks