Hacktoberfest: Add solution for Project Euler: Problem 89#2948

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dhruvmanila merged 4 commits intoTheAlgorithms:masterfrom

coryallegory:euler89

Nov 21, 2020

Commits on Nov 21, 2020

add solution for euler problem 89
coryallegory
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updates to accommodate euler solution guideline updates
coryallegory
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use more descriptive vars
coryallegory
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updating DIRECTORY.md

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