<![CDATA[Math Is Fun Forum / Project Euler Problem 81]]>2024-06-08T01:26:46ZFluxBBhttps://www.mathisfunforum.com/viewtopic.php?id=31326<![CDATA[Project Euler Problem 81]]>Problem #81 Path Sum: Two Ways:

The 80 by 80 matrix can be downloaded from here: matrix.txt.

I managed to solve this one in Excel (spreadsheet). Had to google for a logic clue first, though, after failing with my attempts at M & BASIC code.