Problem 532. Return unique values without sorting

Created by Aurelien Queffurust

Solve Later

If the input vector A is [42 1 1],
the output value B must be the unique values [42 1]
The values of B are in the same order as A

Solve

Solution Stats

2100 Solutions
950 Solvers

Last Solution submitted on Jun 09, 2025

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

@bmtran (Bryant Tran) on 27 Mar 2012

perhaps you should specify that y is in the order of the first occurence of each unique element of x

Peter Wittenberg on 6 Oct 2012

This would be a better problem if unique and sort functions were not allowed

Jihye Sofia Seo on 10 Feb 2017

Nice problem!

Solution Comments

Show comments

Problem Recent Solvers950

Suggested Problems

The Goldbach Conjecture

5792 Solvers
Inner product of two vectors

11141 Solvers
Generate a random matrix A of (1,-1)

363 Solvers
Check that number is whole number

4750 Solvers
Convert radians to degrees

2061 Solvers

More from this Author30

Create a vector whose elements depend on the previous element

725 Solvers
Convert a numerical matrix into a cell array of strings

2164 Solvers
Cody Computer Part 5 - Guess the Name of Cody Computer

59 Solvers
Assign numerical values to a structure with 1 field

32 Solvers
Angle between two vectors

779 Solvers

Problem Tags

Community Treasure Hunt

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

Start Hunting!