About

100% correct solutions for codility problems

Content

• Iterations
  • BinaryGap - Find longest sequence of zeros in binary representation of an integer
• Arrays
  • OddOccurrencesInArray - Find value that occurs in odd number of elements
• Time Complexity
  • PermMissingElem - Find the missing element in a given permutation
  • FrogJmp - Count minimal number of jumps from position X to Y
• Counting Elements
  • PermCheck - Check whether array A is a permutation
  • FrogRiverOne - Find the earliest time when a frog can jump to the other side of a river
  • MissingInteger - Find the minimal positive integer not occurring in a given sequence
• Prefix Sums
  • PassingCars - Count the number of passing cars on the road
  • GenomicRangeQuery - Find the minimal nucleotide from a range of sequence DNA
  • MinAvgTwoSlice - Find the minimal average of any slice containing at least two elements.
• Sorting
  • Distinct - Compute number of distinct values in an array
  • Triangle - Determine whether a triangle can be built from a given set of edges
  • MaxProductOfThree - Maximize A[P] * A[Q] * A[R] for any triplet (P, Q, R)
  • NumberOfDiscIntersections - Compute the number of intersections in a sequence of discs
• Stacks and Queues
  • Brackets - Determine whether a given string of parentheses is properly nested
  • StoneWall - Cover "Manhattan skyline" using the minimum number of rectangles
  • Fish - N voracious fish are moving along a river. Calculate how many fish are alive
• Maximum slice problem
  • MaxProfit - Given a log of stock prices compute the maximum possible earning
  • MaxSliceSum - find the maximum sum of any slice of A
• Prime and composite numbers
  • CountFactors - Count factors of given number n
  • MinPerimeterRectangle - find the minimal perimeter of any rectangle whose area equals N