Problem 45457. Minimal Path - 02

Asif Newaz

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Given a matrix, find the minimal path from the top left to the bottom right by only moving to the right and down so that the summation is minimum.

Use linear index to show the path.

For example,

 x=[ 2     2     2     2     2
    10    10    10     1     2
    20    20    20     1     2
    30    30    30    30     2]

The minimal path is -- [1 5 9 13 14 15 19 20]

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Solution Stats

Last Solution submitted on May 30, 2026

5 Comments

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William on 15 Apr 2020

Asif -- In the last problem of the test suite, there are two different paths through the matrix that lead to the same minimal summation.

Asif Newaz on 16 Apr 2020

oh..didn't see that

Asif Newaz on 16 Apr 2020

William,
I've commented out the last test suite.
can u kindly point out the other path u're getting?

William on 16 Apr 2020

The alternate path is:
[1 11 21 22 32 42 43 44 45 55 56 66 76 77 78 79 89 90 100]

Lincoln Poon on 17 Jun 2021

Here's another alternate path for the last test suite (magic(10)).
[1 2 3 13 14 24 34 35 45 55 56 57 58 68 69 70 80 90 100]

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