{"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":2593,"title":"Polite numbers. N-th polite number.","description":"A polite number is an integer that sums of at least two consecutive positive integers.\r\n\r\nFor example _7 = 3+4_ so 7 is a polite number.\r\n\r\nGiven _N_ return N-th polite number.\r\n\r\nSee also \u003chttp://www.mathworks.com/matlabcentral/cody/problems/2595 2595\u003e","description_html":"\u003cp\u003eA polite number is an integer that sums of at least two consecutive positive integers.\u003c/p\u003e\u003cp\u003eFor example \u003ci\u003e7 = 3+4\u003c/i\u003e so 7 is a polite number.\u003c/p\u003e\u003cp\u003eGiven \u003ci\u003eN\u003c/i\u003e return N-th polite number.\u003c/p\u003e\u003cp\u003eSee also \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/2595\"\u003e2595\u003c/a\u003e\u003c/p\u003e","function_template":"function polite = Nth_polite(n)\r\n  polite = n;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 3;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 2;\r\ny_correct = 5;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 4;\r\ny_correct = 7;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 5;\r\ny_correct = 9;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 7;\r\ny_correct = 11;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 11;\r\ny_correct = 15;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 12;\r\ny_correct = 17;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 14;\r\ny_correct = 19;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 19;\r\ny_correct = 24;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 21;\r\ny_correct = 26;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 27;\r\ny_correct = 33;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 64;\r\ny_correct = 71;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 1e6;\r\ny_correct = x+20;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 1e7;\r\ny_correct = x+24;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 999999999;\r\ny_correct = x+30;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n\r\n","published":true,"deleted":false,"likes_count":2,"comments_count":1,"created_by":14358,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":168,"test_suite_updated_at":"2014-09-17T10:56:47.000Z","rescore_all_solutions":false,"group_id":8,"created_at":"2014-09-16T22:44:09.000Z","updated_at":"2026-05-05T05:29:30.000Z","published_at":"2014-09-17T10:56:47.000Z","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 polite number is an integer that sums of at least two consecutive positive integers.\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\u003eFor example\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e7 = 3+4\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e so 7 is a polite number.\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\u003eGiven\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e return N-th polite number.\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 also\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/2595\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e2595\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\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":2593,"title":"Polite numbers. N-th polite number.","description":"A polite number is an integer that sums of at least two consecutive positive integers.\r\n\r\nFor example _7 = 3+4_ so 7 is a polite number.\r\n\r\nGiven _N_ return N-th polite number.\r\n\r\nSee also \u003chttp://www.mathworks.com/matlabcentral/cody/problems/2595 2595\u003e","description_html":"\u003cp\u003eA polite number is an integer that sums of at least two consecutive positive integers.\u003c/p\u003e\u003cp\u003eFor example \u003ci\u003e7 = 3+4\u003c/i\u003e so 7 is a polite number.\u003c/p\u003e\u003cp\u003eGiven \u003ci\u003eN\u003c/i\u003e return N-th polite number.\u003c/p\u003e\u003cp\u003eSee also \u003ca href = \"http://www.mathworks.com/matlabcentral/cody/problems/2595\"\u003e2595\u003c/a\u003e\u003c/p\u003e","function_template":"function polite = Nth_polite(n)\r\n  polite = n;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 3;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 2;\r\ny_correct = 5;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 4;\r\ny_correct = 7;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 5;\r\ny_correct = 9;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 7;\r\ny_correct = 11;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 11;\r\ny_correct = 15;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 12;\r\ny_correct = 17;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 14;\r\ny_correct = 19;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 19;\r\ny_correct = 24;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 21;\r\ny_correct = 26;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 27;\r\ny_correct = 33;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 64;\r\ny_correct = 71;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 1e6;\r\ny_correct = x+20;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 1e7;\r\ny_correct = x+24;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n%%\r\nx = 999999999;\r\ny_correct = x+30;\r\nassert(isequal(Nth_polite(x),y_correct))\r\n\r\n","published":true,"deleted":false,"likes_count":2,"comments_count":1,"created_by":14358,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":168,"test_suite_updated_at":"2014-09-17T10:56:47.000Z","rescore_all_solutions":false,"group_id":8,"created_at":"2014-09-16T22:44:09.000Z","updated_at":"2026-05-05T05:29:30.000Z","published_at":"2014-09-17T10:56:47.000Z","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 polite number is an integer that sums of at least two consecutive positive integers.\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\u003eFor example\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e7 = 3+4\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e so 7 is a polite number.\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\u003eGiven\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e return N-th polite number.\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 also\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"http://www.mathworks.com/matlabcentral/cody/problems/2595\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e2595\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\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":"Magic Numbers","count":1,"selected":false},{"value":"Number theory","count":1,"selected":false}],[{"value":"medium","count":1,"selected":false}]],"term":"tag:\"a138591\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}