{"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":2313,"title":"Narcissistic problem","description":"How many likes has this problem?","description_html":"\u003cp\u003eHow many likes has this problem?\u003c/p\u003e","function_template":"function y = like_me(x)\r\n  y = x;\r\nend","test_suite":"%%\r\n% this problem will be updated,\r\n% your score/size can change over time\r\n% if you submit a fixed value :-)\r\n%%\r\ny=like_me();\r\nassert(isequal(mod(y,1),0));\r\n%%\r\ny=like_me();\r\nassert(y\u003e0);\r\n%%\r\ny=like_me();\r\nurl='http://www.mathworks.co.uk/matlabcentral/cody/problems/2313'\r\n% the main problem with this problem is that ...\r\n% this problem thinks.\r\n% it thinks about itself most of the time.\r\n% it is convinced, that at least X likes has it.\r\ny_sub_correct=max([10 cellfun(@(S)str2num(cell2mat(S)),regexp(urlread(url),'(\\d*) players\u003c/a\u003e like this problem','tokens'))]); % probably hackable by comments?\r\nt = mtree('like_me.m','-file');\r\nsize = length(t.nodesize);\r\n% this problem likes compliments,\r\n% even false.\r\n% For good compliment it is going to pass your solution with a smaller size! \r\n% But if you don't appreciate it, it can punish you...\r\nfeval(@assignin,'caller','score',round(max(0,size*(.5+.5*y_sub_correct/y))));\r\n","published":true,"deleted":false,"likes_count":30,"comments_count":4,"created_by":14358,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":168,"test_suite_updated_at":"2014-12-05T16:31:19.000Z","rescore_all_solutions":true,"group_id":1,"created_at":"2014-05-08T09:18:27.000Z","updated_at":"2026-04-22T18:01:19.000Z","published_at":"2014-05-08T09:25:53.000Z","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\u003eHow many likes has this problem?\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":2313,"title":"Narcissistic problem","description":"How many likes has this problem?","description_html":"\u003cp\u003eHow many likes has this problem?\u003c/p\u003e","function_template":"function y = like_me(x)\r\n  y = x;\r\nend","test_suite":"%%\r\n% this problem will be updated,\r\n% your score/size can change over time\r\n% if you submit a fixed value :-)\r\n%%\r\ny=like_me();\r\nassert(isequal(mod(y,1),0));\r\n%%\r\ny=like_me();\r\nassert(y\u003e0);\r\n%%\r\ny=like_me();\r\nurl='http://www.mathworks.co.uk/matlabcentral/cody/problems/2313'\r\n% the main problem with this problem is that ...\r\n% this problem thinks.\r\n% it thinks about itself most of the time.\r\n% it is convinced, that at least X likes has it.\r\ny_sub_correct=max([10 cellfun(@(S)str2num(cell2mat(S)),regexp(urlread(url),'(\\d*) players\u003c/a\u003e like this problem','tokens'))]); % probably hackable by comments?\r\nt = mtree('like_me.m','-file');\r\nsize = length(t.nodesize);\r\n% this problem likes compliments,\r\n% even false.\r\n% For good compliment it is going to pass your solution with a smaller size! 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