Compute number of distinct absolute values of sorted array elements.

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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 15

painless

Compute number of distinct absolute values of sorted array elements.

painless

Count the number of distinct slices (containing only unique numbers).

painless

Count the number of triangles that can be built from a given set of edges.

respectable

Find the minimal absolute value of a sum of two elements.