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AVAILABLE LESSONS:
Lesson 1
Iterations
Lesson 2
Arrays
Lesson 3
Time Complexity
Lesson 4
Counting Elements
Lesson 5
Prefix Sums
Lesson 6
Sorting
Lesson 7
Stacks and Queues
Lesson 8
Leader
Lesson 9
Maximum slice problem
Lesson 10
Prime and composite numbers
Lesson 11
Sieve of Eratosthenes
Lesson 12
Euclidean algorithm
Lesson 13
Fibonacci numbers
Lesson 14
Binary search algorithm
Lesson 15
Caterpillar method
Lesson 16
Greedy algorithms
Lesson 17
Dynamic programming
Lesson 99
Future training
Lesson 6

Sorting

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Tasks:

easy

Distinct

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Compute number of distinct values in an array.
easy

MaxProductOfThree

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Maximize A[P] * A[Q] * A[R] for any triplet (P, Q, R).
easy

Triangle

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Determine whether a triangle can be built from a given set of edges.
medium

NumberOfDiscIntersections

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Compute the number of intersections in a sequence of discs.