Problem 40. Reverse Run-Length Encoder

Given a "counting sequence" vector x, construct the original sequence y.

A counting sequence is formed by "counting" the entries in a given sequence. This is sometimes called run-length encoding.

For example, the sequence

 x = 2, 5, 1, 2, 4, 1, 1, 3

can be read as

 Two 5's, one 2, four 1's, one 3

which translates to

 y = 5, 5, 2, 1, 1, 1, 1, 3

So y is the reconstructed vector that corresponds to the counting sequence x.

For this problem, all elements in the sequences x and y will be in the range from 1 to 9.

Solution Stats

75.05% Correct | 24.95% Incorrect
Last Solution submitted on Mar 18, 2024

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers2446

Suggested Problems

More from this Author96

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!