Given an N x N matrix M with binary entries i.e every entry is either 1 or 0. You are told that every row and every column is sorted in increasing order. You are required to output a pair (i,j) with 1 <= i and j <= n corresponding to the entry of the matrix satisfying Mij = 1 and Mrs = 0 for all 1 <= r <= i and 1 <= s <= j except for Mij Informally this includes the entry of M = 1 and is closest to the top left corner.   for example: M = [ 0 0 0 1 0 0 1 1 0 0 1 1 0 0 1 1] output is (2,3) or (1,4)   M = [ 0 1 1 1 1 1 1 1 1] output could be (1,2) or (2,1)   Design a divide and conquer algorithm, explain correctness and runtime of the algorithm.

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Computer Science

Given an N x N matrix M with binary entries i.e every entry is either 1 or 0. You are told that every row and every column is sorted in increasing order. You are required to output a pair (i,j) with 1 <= i and j <= n corresponding to the entry of the matrix satisfying Mij = 1 and

Mrs = 0 for all 1 <= r <= i and 1 <= s <= j except for Mij

Informally this includes the entry of M = 1 and is closest to the top left corner.

 

for example:

M = [ 0 0 0 1

0 0 1 1

0 0 1 1

0 0 1 1]

output is (2,3) or (1,4)

 

M = [ 0 1 1

1 1 1

1 1 1]

output could be (1,2) or (2,1)

 

Design a divide and conquer algorithm, explain correctness and runtime of the algorithm. 

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