Problem 54390. That's not my hat!

Created by Sourabh Warrier

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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:r><w:t>There exists a highly secretive hat consortium. Members possess identical hats. The members are invited to a meeting. All of them bring their hats, but are required to leave them in the shared cloakroom. During the meeting an earthquake strikes the region, leaving the cloakroom a mess. When the members return to the cloakroom, they find all the hats lying on the floor, rendering it impossible to determine the owners. Unwilling to dwell on this, the members each pick up a random hat and leave. Given the number of attendees </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>n&gt;0</w:t></w:r><w:r><w:t>, the function </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>c </w:t></w:r><w:r><w:t>computes the number of distinct events where none of the members pick up their original hat. Your task is to define this function.</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: 20.44px; 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: none solid rgb(0, 0, 0); white-space: normal; "><div style="block-size: 126px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 63px; transform-origin: 407px 63px; vertical-align: baseline; "><div style="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 63px; text-align: left; transform-origin: 384px 63px; 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: 0px 0px; transform-origin: 0px 0px; "><span style="">There exists a highly secretive hat consortium. Members possess identical hats. The members are invited to a meeting. All of them bring their hats, but are required to leave them in the shared cloakroom. During the meeting an earthquake strikes the region, leaving the cloakroom a mess. When the members return to the cloakroom, they find all the hats lying on the floor, rendering it impossible to determine the owners. Unwilling to dwell on this, the members each pick up a random hat and leave. Given the number of attendees </span></span><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: 0px 0px; transform-origin: 0px 0px; "><span style="font-weight: 700; ">n&gt;0</span></span><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: 0px 0px; transform-origin: 0px 0px; "><span style="">, the function </span></span><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: 0px 0px; transform-origin: 0px 0px; "><span style="font-weight: 700; ">c </span></span><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: 0px 0px; transform-origin: 0px 0px; "><span style="">computes the number of distinct events where none of the members pick up their original hat. Your task is to define this function.</span></span></div></div></div>

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Last Solution submitted on Oct 04, 2022

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Problem 54390. That's not my hat!

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Problem 54390. That's not my hat!

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