Problem 1174. Wheat on a chessboard pt 2

Created by Robert Turner

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<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 93px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 46.5px; transform-origin: 407px 46.5px; vertical-align: baseline; "><div style="block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 384px 8px; transform-origin: 384px 8px; unicode-bidi: normal; "><span style="">If a chessboard were to have wheat placed upon each square such that x grains were placed on the first square and each successive square after had y times the amount of grains as the square before. How many grains of wheat would be on the chessboard at the finish?</span></span></div><div style="block-size: 21px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 10.5px; text-align: left; transform-origin: 384px 10.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 136px 8px; transform-origin: 136px 8px; unicode-bidi: normal; "><span style="">Assume the chess board is n by n squares.</span></span></div></div></div>

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267 Solutions
72 Solvers

Last Solution submitted on Apr 10, 2021

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David on 7 Jan 2013

consider using isequalwithequalnans (isequaln) against NaN instead of isequal against 'NaN' in test 7.

Jean-Marie Sainthillier on 12 Mar 2013

n=-1 ???

Asif Newaz on 12 Jan 2020

how to place negative amount of 'wheat' on a chessboard?
the prob is gd but the test suites are unnecessarily jumbled up.

Dyuman Joshi on 10 Apr 2021 at 10:41

Removed the cases with negative quantities. Everyone should be able to solve the problem now.

Solution Comments

Solution 186218

1 Comment

1 Comment

Robert Turner on 4 Jan 2013

This should also be slimmed down somehow.

Solution 186217

1 Comment

1 Comment

Robert Turner on 4 Jan 2013

Someone can easily beat this lead.

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chess exponential wheat word problems

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Problem 1174. Wheat on a chessboard pt 2

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Problem 1174. Wheat on a chessboard pt 2

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Last 200 Solutions

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Problem Recent Solvers72

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More from this Author4

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