Given a Natural number N, return the sequence - [1 1 2 1 2 3 1 2 3 4 ... 1 2 3 ... N-3 N-2 N-1 N] i.e. the horizontal concatenation of (1:k) for k=1:N
%Example 1
N=3;
Out=[1, 1 2, 1 2 3];
%Example 2
N=7;
Out=[1, 1 2, 1 2 3, 1 2 3 4, 1 2 3 4 5, 1 2 3 4 5 6, 1 2 3 4 5 6 7];
As the question deals with vectors, the solutions must be vectorized as well. Check the test suite for banned functions.
There will be a second part to this question.

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Last Solution submitted on Sep 22, 2025

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