Could anyone help me with a code to check if the time intervals intersect

% This script should select the optimal time intervals, so that as many time intervals fit without intersecting each other.

clear;

close all;

clc;

list = [

10 20; % Time intervals: (start day [space] end day) (starts at day 10 ends at day 20 of the year)

9 15;

16 17;

21 100;

];

list_ordered = sortrows(list)

% Check which time intervals overlap:

% 10 20 [9 15, 16 17]

% 9 15 [10 20]

% 16 17 [10 20]

% 21 100 []

% Remove the time intervals with the most intersections:

% 9 15

% 16 17

% 21 100

Answer 1

[Andrei Bobrov]

M = sortrows(list);
out = M(sum(squeeze(any(M - permute(M,[3,2,1]) <= 0,2))) == 1:size(list,1),:);

[Catalytic Kys]

Thank you, it works flawelessly!