Problem 793. Combinations without using nchoosek

You have to generate a matrix with all possible combinations of n elements taken 2 at a time, without using nchoosek(1:n,2) :

Examples

if n = 3

output =

       1     2
       1     3
       2     3

if n = 5

output = 

       1     2
       1     3
       1     4
       1     5
       2     3
       2     4
       2     5
       3     4
       3     5
       4     5

Good luck!!

Solve

Solution Stats

55.83% Correct | 44.17% Incorrect
Last Solution submitted on Dec 06, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers134

Suggested Problems

More from this Author30

Problem Tags

combinations nchoosek

Community Treasure Hunt

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

Start Hunting!