So many choices - MATLAB Cody - MATLAB Central

Problem 160. So many choices

Difficulty:
(106)
Rate

For inputs n and k (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. [The order of the selected objects is irrelevant.]

For example, suppose you have 4 blocks: red, green, blue, yellow. How many ways are there to select 2 of them? There are 6 ways: RG, RB, RY, GB, GY, BY. [Remember the ordering is irrelevant, so GR is equivalent to RG, and therefore does not count as a distinct choice.]

So, function(4,2) ---> 6.

Solve

Solution Stats

52.56% Correct | 47.44% Incorrect
Last Solution submitted on May 05, 2025

Problem Comments

Solution Comments

Show comments
PIVlab surpasses 100K all-time File Exchange downloads
During the past twelve months, PIVlab, a MATLAB Community Toolbox for particle...
Mike Croucher in General
4
8
View Post
LLMs with MATLAB updated to support the latest OpenAI Models
Large Languge model with MATLAB, a free add-on that lets you access...
Toshiaki Takeuchi in Generative AI
2
4
View Post

Problem Recent Solvers459

Suggested Problems

More from this Author23

Problem Tags

basic matlab basics choose

Community Treasure Hunt

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

Start Hunting!