{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-04-06T14:01:22.000Z","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":"2026-04-06T00:00:00.000Z","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":43318,"title":"Compare two strings.","description":"Compare two strings, whether they are equal or not.","description_html":"\u003cp\u003eCompare two strings, whether they are equal or not.\u003c/p\u003e","function_template":"function z = Comparer(x,y)\r\n  z = x==y;\r\nend","test_suite":"%%\r\nx = 'When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny='When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny_correct = true;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx = 'When you finish tee test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny='When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny_correct = false;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx='Hello';\r\ny='Hi';\r\ny_correct = false;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx='Hello';\r\ny='Hello';\r\ny_correct = true;\r\nassert(isequal(Comparer(x,y),y_correct))","published":true,"deleted":false,"likes_count":3,"comments_count":0,"created_by":90467,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":106,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2016-10-10T16:05:56.000Z","updated_at":"2026-02-09T14:59:17.000Z","published_at":"2016-10-10T16:05:56.000Z","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\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"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\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\u003eCompare two strings, whether they are equal or not.\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\"}]}"},{"id":44358,"title":"I Plead the Fifth","description":"Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.","description_html":"\u003cp\u003eWrite a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.\u003c/p\u003e","function_template":"function answer = I_plead_the_fifth(question)\r\n str = 'yes/no';\r\nend","test_suite":"%%\r\nquestion = 'Are you the fifth child?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Were you at home on the night of 24 Oct 1974?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Did you go to work on 15 Oct 1955?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Did you go to the bowling alley last week?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Do you like bread?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Are there five fingers on your right hand?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do you like pumpkins?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Do you have fifteen siblings?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do two quarters equal fifty cents?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do you own five dogs?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Is my name Harry?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))","published":true,"deleted":false,"likes_count":6,"comments_count":0,"created_by":26769,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":427,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":34,"created_at":"2017-10-03T17:12:42.000Z","updated_at":"2026-03-22T03:30:09.000Z","published_at":"2017-10-16T01:45:09.000Z","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\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"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\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\u003eWrite a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.\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\"}]}"},{"id":44306,"title":"Is it really a 5?","description":"A number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \"five\" anywhere. For example:\r\n\r\n n = 5; return true since it is spelled \"five\"\r\n n = 15; return false since it is spelled \"fifteen\" and does not contain the four-letter string \"five\"\r\n\r\nThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \"five\" for this problem.\r\n\r\nSee the test suite for more examples.","description_html":"\u003cp\u003eA number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \"five\" anywhere. For example:\u003c/p\u003e\u003cpre\u003e n = 5; return true since it is spelled \"five\"\r\n n = 15; return false since it is spelled \"fifteen\" and does not contain the four-letter string \"five\"\u003c/pre\u003e\u003cp\u003eThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \"five\" for this problem.\u003c/p\u003e\u003cp\u003eSee the test suite for more examples.\u003c/p\u003e","function_template":"function tf = is_it_really_a_5(n)\r\n tf = 0;\r\nend","test_suite":"%%\r\nn = 5;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 25;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 35;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 52;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 59;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 85;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 105;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 115;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 125;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 250;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 500;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 555;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000; %5,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15000; %15,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55555; %55,555\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000; %50,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55000; %55,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50500; %50,500\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50050; %50,050\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50005; %50,005\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 500000; %500,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000000; %5,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15000000; %15,000,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50000000; %50,000,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 105000000; %105,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50050050; %50,050,050\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50000005; %50,000,005\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000015; %50,000,015\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 500000000; %500,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000000000; %5,000,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000000000; %50,000,000,000\r\nassert(isequal(is_it_really_a_5(n),0))","published":true,"deleted":false,"likes_count":7,"comments_count":1,"created_by":26769,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":316,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":34,"created_at":"2017-09-08T22:07:48.000Z","updated_at":"2026-03-18T13:28:44.000Z","published_at":"2017-10-16T01:45:06.000Z","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\u003eA number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \\\"five\\\" anywhere. 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[ n = 5; return true since it is spelled \\\"five\\\"\\n n = 15; return false since it is spelled \\\"fifteen\\\" and does not contain the four-letter string \\\"five\\\"]]\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\u003eThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \\\"five\\\" for this problem.\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\u003eSee the test suite for more examples.\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":{"errors":[],"problems":[{"id":43318,"title":"Compare two strings.","description":"Compare two strings, whether they are equal or not.","description_html":"\u003cp\u003eCompare two strings, whether they are equal or not.\u003c/p\u003e","function_template":"function z = Comparer(x,y)\r\n  z = x==y;\r\nend","test_suite":"%%\r\nx = 'When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny='When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny_correct = true;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx = 'When you finish tee test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny='When you finish the test, you will be told your approximate English level. You can then search for suitable content on LearnEnglish Teens by level. You can also search for content by topic.';\r\ny_correct = false;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx='Hello';\r\ny='Hi';\r\ny_correct = false;\r\nassert(isequal(Comparer(x,y),y_correct))\r\n%%\r\nx='Hello';\r\ny='Hello';\r\ny_correct = true;\r\nassert(isequal(Comparer(x,y),y_correct))","published":true,"deleted":false,"likes_count":3,"comments_count":0,"created_by":90467,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":106,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2016-10-10T16:05:56.000Z","updated_at":"2026-02-09T14:59:17.000Z","published_at":"2016-10-10T16:05:56.000Z","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\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"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\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\u003eCompare two strings, whether they are equal or not.\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\"}]}"},{"id":44358,"title":"I Plead the Fifth","description":"Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.","description_html":"\u003cp\u003eWrite a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.\u003c/p\u003e","function_template":"function answer = I_plead_the_fifth(question)\r\n str = 'yes/no';\r\nend","test_suite":"%%\r\nquestion = 'Are you the fifth child?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Were you at home on the night of 24 Oct 1974?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Did you go to work on 15 Oct 1955?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Did you go to the bowling alley last week?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Do you like bread?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Are there five fingers on your right hand?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do you like pumpkins?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))\r\n\r\n%%\r\nquestion = 'Do you have fifteen siblings?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do two quarters equal fifty cents?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Do you own five dogs?';\r\nassert(isempty(I_plead_the_fifth(question)))\r\n\r\n%%\r\nquestion = 'Is my name Harry?';\r\nassert(strcmpi(I_plead_the_fifth(question),'yes') || ...\r\n    strcmpi(I_plead_the_fifth(question),'no'))","published":true,"deleted":false,"likes_count":6,"comments_count":0,"created_by":26769,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":427,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":34,"created_at":"2017-10-03T17:12:42.000Z","updated_at":"2026-03-22T03:30:09.000Z","published_at":"2017-10-16T01:45:09.000Z","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\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"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\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\u003eWrite a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty string) if the number five or any variation thereof (e.g., fifth, fifty, fifteen, 5) is within the input string.\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\"}]}"},{"id":44306,"title":"Is it really a 5?","description":"A number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \"five\" anywhere. For example:\r\n\r\n n = 5; return true since it is spelled \"five\"\r\n n = 15; return false since it is spelled \"fifteen\" and does not contain the four-letter string \"five\"\r\n\r\nThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \"five\" for this problem.\r\n\r\nSee the test suite for more examples.","description_html":"\u003cp\u003eA number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \"five\" anywhere. For example:\u003c/p\u003e\u003cpre\u003e n = 5; return true since it is spelled \"five\"\r\n n = 15; return false since it is spelled \"fifteen\" and does not contain the four-letter string \"five\"\u003c/pre\u003e\u003cp\u003eThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \"five\" for this problem.\u003c/p\u003e\u003cp\u003eSee the test suite for more examples.\u003c/p\u003e","function_template":"function tf = is_it_really_a_5(n)\r\n tf = 0;\r\nend","test_suite":"%%\r\nn = 5;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 25;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 35;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 52;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 59;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 85;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 105;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 115;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 125;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 250;\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 500;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 555;\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000; %5,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15000; %15,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55555; %55,555\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000; %50,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 55000; %55,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50500; %50,500\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50050; %50,050\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50005; %50,005\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 500000; %500,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000000; %5,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 15000000; %15,000,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50000000; %50,000,000\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 105000000; %105,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50050050; %50,050,050\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 50000005; %50,000,005\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000015; %50,000,015\r\nassert(isequal(is_it_really_a_5(n),0))\r\n\r\n%%\r\nn = 500000000; %500,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 5000000000; %5,000,000,000\r\nassert(isequal(is_it_really_a_5(n),1))\r\n\r\n%%\r\nn = 50000000000; %50,000,000,000\r\nassert(isequal(is_it_really_a_5(n),0))","published":true,"deleted":false,"likes_count":7,"comments_count":1,"created_by":26769,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":316,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":34,"created_at":"2017-09-08T22:07:48.000Z","updated_at":"2026-03-18T13:28:44.000Z","published_at":"2017-10-16T01:45:06.000Z","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\u003eA number containing at least one five will be passed to your function, which must return true or false depending upon whether the English spelling of the number may contain \\\"five\\\" anywhere. 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[ n = 5; return true since it is spelled \\\"five\\\"\\n n = 15; return false since it is spelled \\\"fifteen\\\" and does not contain the four-letter string \\\"five\\\"]]\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\u003eThis criterion applies to any common spelling of the number. For example, 1500 can be written fifteen hundred. But, it can also be written one thousand five hundred. So, 1500 would be considered to contain a \\\"five\\\" for this problem.\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\u003eSee the test suite for more examples.\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\"}]}"}],"term":"tag:\"strcmp\"","current_player_id":null,"fields":[{"name":"page","type":"integer","callback":null,"default":1,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"per_page","type":"integer","callback":null,"default":50,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"sort","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"body","type":"text","callback":null,"default":"*:*","directive":null,"facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":false},{"name":"group","type":"string","callback":null,"default":null,"directive":"group","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"difficulty_rating_bin","type":"string","callback":null,"default":null,"directive":"difficulty_rating_bin","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"id","type":"integer","callback":null,"default":null,"directive":"id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"tag","type":"string","callback":null,"default":null,"directive":"tag","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"product","type":"string","callback":null,"default":null,"directive":"product","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_at","type":"timeframe","callback":{},"default":null,"directive":"created_at","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"profile_id","type":"integer","callback":null,"default":null,"directive":"author_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_by","type":"string","callback":null,"default":null,"directive":"author","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player_id","type":"integer","callback":null,"default":null,"directive":"solver_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player","type":"string","callback":null,"default":null,"directive":"solver","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"solvers_count","type":"integer","callback":null,"default":null,"directive":"solvers_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"comments_count","type":"integer","callback":null,"default":null,"directive":"comments_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"likes_count","type":"integer","callback":null,"default":null,"directive":"likes_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leader_id","type":"integer","callback":null,"default":null,"directive":"leader_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leading_solution","type":"integer","callback":null,"default":null,"directive":"leading_solution","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true}],"filters":[{"name":"asset_type","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":"\"cody:problem\"","prepend":true},{"name":"profile_id","type":"integer","callback":{},"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":"author_id","static":null,"prepend":true}],"query":{"params":{"per_page":50,"term":"tag:\"strcmp\"","current_player":null,"sort":"map(difficulty_value,0,0,999) asc"},"parser":"MathWorks::Search::Solr::QueryParser","directives":{"term":{"directives":{"tag":[["tag:\"strcmp\"","","\"","strcmp","\""]]}}},"facets":{"#\u003cMathWorks::Search::Field:0x00007fdbe90f0fb0\u003e":null,"#\u003cMathWorks::Search::Field:0x00007fdbe90f0f10\u003e":null},"filters":{"#\u003cMathWorks::Search::Field:0x00007fdbe90f03d0\u003e":"\"cody:problem\""},"fields":{"#\u003cMathWorks::Search::Field:0x00007fdbe90f1230\u003e":1,"#\u003cMathWorks::Search::Field:0x00007fdbe90f1190\u003e":50,"#\u003cMathWorks::Search::Field:0x00007fdbe90f10f0\u003e":"map(difficulty_value,0,0,999) 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