Problem 2704. Find Sign(Zero Crossing) Changes in Array

Created by VOXEL INFOTECH Chennai-IND

Solve Later

Example; A = [1 2 3 -3 -4 -1 -24 2 4 -1 -2 3 1];
ans;
[1 2 0 -3 -4 -1 0 2 0 -1 0 3 1]

Solve

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100 Solutions
6 Solvers

Last Solution submitted on Nov 17, 2025

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Dyuman Joshi on 20 May 2021

Test suite updated with additional test cases

ChrisR on 4 Nov 2021

I might be misunderstanding this problem, but I think the fourth and fifth tests have errors. The answer for the fourth should have a zero in the first position, not the second. The answer for the fifth test has no zeros at all.

Dyuman Joshi on 4 Nov 2021

@Chris, the question asks to make the points zero where the neighbourhood elements are opposite in sign.

Christian Schröder on 5 Jan 2023

This really needs a better problem description --- the original author's intention is not at all clear.

Christian Schröder on 5 Jan 2023

(And in fact the original author's own solution does not pass the updated test suite anymore.)

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