Problem 51461. Pass the cards in Fitch Cheney's five-card trick

Created by ChrisR

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{"parts":[{"partUri":"/matlab/document.xml","contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:hyperlink w:docLocation=\"https://www.mathworks.com/matlabcentral/cody/problems/51451-guess-the-card-in-fitch-cheney-s-five-card-trick\"><w:r><w:rPr><w:u/></w:rPr><w:t>Cody Problem 51541</w:t></w:r></w:hyperlink><w:r><w:t> asked solvers to guess the card in Fitch Cheney's five-card trick. This problem is the counterpart: Write a function that takes five cards, selects four of them, and puts them in order to pass to the partner. See the previous problem for the rules. If the input string is '5C 7C 6S 4H 3D', the output string should be '5C 3D 6S 4H'. Some hands will have multiple possible answers. Your function needs only to provide one of them. </w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>The motivation for this problem arose when </w:t></w:r><w:hyperlink w:docLocation=\"https://www.mathworks.com/matlabcentral/cody/players/18927291\"><w:r><w:rPr><w:u/></w:rPr><w:t>EmilyR</w:t></w:r></w:hyperlink><w:r><w:t> and I tried to dazzle </w:t></w:r><w:hyperlink w:docLocation=\"https://www.mathworks.com/matlabcentral/cody/players/8608872-jessicar\"><w:r><w:rPr><w:u/></w:rPr><w:t>JessicaR</w:t></w:r></w:hyperlink><w:r><w:t> with card wizardry, and I misordered the four cards—twice. </w:t></w:r></w:p></w:body></w:document>","relationship":null}],"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","target":"/matlab/document.xml","relationshipId":"rId1"}]}

<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: 135px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 67.5px; transform-origin: 407px 67.5px; vertical-align: baseline; "><div style="block-size: 84px; 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 42px; text-align: left; transform-origin: 384px 42px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/problems/51451-guess-the-card-in-fitch-cheney-s-five-card-trick"><span style=""><span style="text-decoration: underline; text-decoration-line: underline; ">Cody Problem 51541</span></span></a><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: 303.542px 7.91667px; transform-origin: 303.542px 7.91667px; unicode-bidi: normal; "><span style=""> asked solvers to guess the card in Fitch Cheney's five-card trick. This problem is the counterpart: Write a function that takes five cards, selects four of them, and puts them in order to pass to the partner. See the previous problem for the rules. If the input string is '5C 7C 6S 4H 3D', the output string should be '5C 3D 6S 4H'. Some hands will have multiple possible answers. Your function needs only to provide one of them. </span></span></div><div style="block-size: 42px; 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 21px; text-align: left; transform-origin: 384px 21px; 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: 136.142px 7.91667px; transform-origin: 136.142px 7.91667px; unicode-bidi: normal; "><span style="">The motivation for this problem arose when </span></span><a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/players/18927291"><span style=""><span style="text-decoration: underline; text-decoration-line: underline; ">EmilyR</span></span></a><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: 64.95px 7.91667px; transform-origin: 64.95px 7.91667px; unicode-bidi: normal; "><span style=""> and I tried to dazzle </span></span><a target='_blank' href = "https://www.mathworks.com/matlabcentral/cody/players/8608872-jessicar"><span style=""><span style="text-decoration: underline; text-decoration-line: underline; ">JessicaR</span></span></a><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: 127.45px 7.91667px; transform-origin: 127.45px 7.91667px; unicode-bidi: normal; "><span style=""> with card wizardry, and I misordered the four cards—twice. </span></span></div></div></div>

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Last Solution submitted on Apr 18, 2021

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Solution 5377591

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2 Comments

William on 18 Apr 2021

Test 1 also has 2 solutions.

ChrisR on 18 Apr 2021

Thanks William. I changed the first test as well as the example in the problem description.

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Problem 51461. Pass the cards in Fitch Cheney's five-card trick

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Problem 51461. Pass the cards in Fitch Cheney's five-card trick

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