{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-05-26T00:16:20.000Z","description":"Problems submitted by members of the MATLAB Central community.","is_default":true,"created_by":161519,"badge_id":null,"featured":false,"trending":false,"solution_count_in_trending_period":0,"trending_last_calculated":"2026-05-26T00:00:00.000Z","image_id":null,"published":true,"community_created":false,"status_id":2,"is_default_group_for_player":false,"deleted_by":null,"deleted_at":null,"restored_by":null,"restored_at":null,"description_opc":null,"description_html":null,"published_at":null},"problems":[{"id":1832,"title":"Pluralization","description":"Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise.  This is handy for displaying messages from a program.  For example,\r\n\r\n   disp([num2str(n) ' point' plu(n) ' removed'])\r\n\r\nproduces \r\n\r\n   0 points removed\r\n   1 point removed\r\n   2 points removed\r\n\r\netc., which is a little nicer than the typical alternative\r\n\r\n   0 point(s) removed\r\n   1 point(s) removed\r\n   2 point(s) removed\r\n\r\nand infinitely better than \r\n\r\n   0 points removed\r\n   1 points removed\r\n   2 points removed\r\n","description_html":"\u003cp\u003eDefine function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise.  This is handy for displaying messages from a program.  For example,\u003c/p\u003e\u003cpre\u003e   disp([num2str(n) ' point' plu(n) ' removed'])\u003c/pre\u003e\u003cp\u003eproduces\u003c/p\u003e\u003cpre\u003e   0 points removed\r\n   1 point removed\r\n   2 points removed\u003c/pre\u003e\u003cp\u003eetc., which is a little nicer than the typical alternative\u003c/p\u003e\u003cpre\u003e   0 point(s) removed\r\n   1 point(s) removed\r\n   2 point(s) removed\u003c/pre\u003e\u003cp\u003eand infinitely better than\u003c/p\u003e\u003cpre\u003e   0 points removed\r\n   1 points removed\r\n   2 points removed\u003c/pre\u003e","function_template":"function p=plu(n)\r\np='';\r\n","test_suite":"assert(isequal(plu(0),'s'))\r\nassert(isequal(plu(1),''))\r\nassert(isequal(plu(2),'s'))\r\nassert(isequal(plu(3),'s'))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":245,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":92,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2013-08-16T20:37:32.000Z","updated_at":"2026-05-19T17:56:52.000Z","published_at":"2013-08-16T20:57:25.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eDefine function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a program. For example,\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   disp([num2str(n) ' point' plu(n) ' removed'])]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eproduces\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 points removed\\n   1 point removed\\n   2 points removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eetc., which is a little nicer than the typical alternative\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 point(s) removed\\n   1 point(s) removed\\n   2 point(s) removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eand infinitely better than\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 points removed\\n   1 points removed\\n   2 points removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"problem_search":{"problems":[{"id":1832,"title":"Pluralization","description":"Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise.  This is handy for displaying messages from a program.  For example,\r\n\r\n   disp([num2str(n) ' point' plu(n) ' removed'])\r\n\r\nproduces \r\n\r\n   0 points removed\r\n   1 point removed\r\n   2 points removed\r\n\r\netc., which is a little nicer than the typical alternative\r\n\r\n   0 point(s) removed\r\n   1 point(s) removed\r\n   2 point(s) removed\r\n\r\nand infinitely better than \r\n\r\n   0 points removed\r\n   1 points removed\r\n   2 points removed\r\n","description_html":"\u003cp\u003eDefine function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise.  This is handy for displaying messages from a program.  For example,\u003c/p\u003e\u003cpre\u003e   disp([num2str(n) ' point' plu(n) ' removed'])\u003c/pre\u003e\u003cp\u003eproduces\u003c/p\u003e\u003cpre\u003e   0 points removed\r\n   1 point removed\r\n   2 points removed\u003c/pre\u003e\u003cp\u003eetc., which is a little nicer than the typical alternative\u003c/p\u003e\u003cpre\u003e   0 point(s) removed\r\n   1 point(s) removed\r\n   2 point(s) removed\u003c/pre\u003e\u003cp\u003eand infinitely better than\u003c/p\u003e\u003cpre\u003e   0 points removed\r\n   1 points removed\r\n   2 points removed\u003c/pre\u003e","function_template":"function p=plu(n)\r\np='';\r\n","test_suite":"assert(isequal(plu(0),'s'))\r\nassert(isequal(plu(1),''))\r\nassert(isequal(plu(2),'s'))\r\nassert(isequal(plu(3),'s'))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":245,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":92,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2013-08-16T20:37:32.000Z","updated_at":"2026-05-19T17:56:52.000Z","published_at":"2013-08-16T20:57:25.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eDefine function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a program. For example,\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   disp([num2str(n) ' point' plu(n) ' removed'])]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eproduces\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 points removed\\n   1 point removed\\n   2 points removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eetc., which is a little nicer than the typical alternative\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 point(s) removed\\n   1 point(s) removed\\n   2 point(s) removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eand infinitely better than\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[   0 points removed\\n   1 points removed\\n   2 points removed]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"errors":[],"facets":[[],[{"value":"easy","count":1,"selected":false}]],"term":"tag:\"plural\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}