Problem 924. intersection of matrices

Created by Richard
Appears in Indexing I

Difficulty:Rate

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Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identical size.
Examples:
Inputs A = [1     0     0     0     0
            0     1     0     0     0
            0     0     1     0     0
            0     0     0     1     0
            0     0     0     0     1 ] 
   and B = [0     1     0     0     0
            0     0     1     0     0
            0     0     0     1     0
            0     0     0     0     1
            1     0     0     0     0 ]
Output tf is false
Inputs A = [1     1     1     0     1
            1     1     1     1     0
            0     1     1     1     1
            1     0     1     1     1
            1     1     0     1     1 ]
   and B = [0     1     0     0     0
            1     0     0     0     0
            0     0     0     0     1
            0     0     0     1     0
            0     0     1     0     0]
Output tf is true

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Last Solution submitted on May 05, 2025

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Marco Riani on 22 Jan 2022

A small addendum to the comment of Chien-Han Su

Just consider the problem to be "Is there any i, j such that A(i,j) == B(i,j) and A(i,j) or B(i,j) ~=0"

Jung Un Park on 5 Jul 2023

Problem description is poor.

Olayinka on 11 Nov 2023

Please explain this problem for further clarity

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