{"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":2227,"title":"Broken numlock key, oppps ! ","description":"The numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\r\n\r\nExample\r\n\r\n Input:  \"0y n4036c2 2ey 5s br62en!\"\r\n Output: \"my numlock key is broken!\"\r\n\r\nHappy decoding!","description_html":"\u003cp\u003eThe numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\u003c/p\u003e\u003cp\u003eExample\u003c/p\u003e\u003cpre\u003e Input:  \"0y n4036c2 2ey 5s br62en!\"\r\n Output: \"my numlock key is broken!\"\u003c/pre\u003e\u003cp\u003eHappy decoding!\u003c/p\u003e","function_template":"function y = DecodeNumlk(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = '0y n4036c2 2ey 5s br62en!';\r\ny_correct = 'my numlock key is broken!';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Can y64 *3ease he3* 0e+';\r\ny_correct = 'Can you please help me?';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Th5s 5s g65ng t6 be b5g f4n w5th n40ber 2eys 123456789/';\r\ny_correct = 'This is going to be big fun with number keys 1234567890';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Why these 2eys brea2 and 0a2e a b5g 0ess 6***s -/';\r\ny_correct = 'Why these keys break and make a big mess oppps :)';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":7,"created_by":16381,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":60,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":32,"created_at":"2014-03-02T03:23:21.000Z","updated_at":"2026-05-24T17:21:54.000Z","published_at":"2014-03-02T03:24:59.000Z","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\u003eThe numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\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\u003eExample\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[ Input:  \\\"0y n4036c2 2ey 5s br62en!\\\"\\n Output: \\\"my numlock key is broken!\\\"]]\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\u003eHappy decoding!\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":2227,"title":"Broken numlock key, oppps ! ","description":"The numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\r\n\r\nExample\r\n\r\n Input:  \"0y n4036c2 2ey 5s br62en!\"\r\n Output: \"my numlock key is broken!\"\r\n\r\nHappy decoding!","description_html":"\u003cp\u003eThe numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\u003c/p\u003e\u003cp\u003eExample\u003c/p\u003e\u003cpre\u003e Input:  \"0y n4036c2 2ey 5s br62en!\"\r\n Output: \"my numlock key is broken!\"\u003c/pre\u003e\u003cp\u003eHappy decoding!\u003c/p\u003e","function_template":"function y = DecodeNumlk(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = '0y n4036c2 2ey 5s br62en!';\r\ny_correct = 'my numlock key is broken!';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Can y64 *3ease he3* 0e+';\r\ny_correct = 'Can you please help me?';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Th5s 5s g65ng t6 be b5g f4n w5th n40ber 2eys 123456789/';\r\ny_correct = 'This is going to be big fun with number keys 1234567890';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n%%\r\nx = 'Why these 2eys brea2 and 0a2e a b5g 0ess 6***s -/';\r\ny_correct = 'Why these keys break and make a big mess oppps :)';\r\nassert(isequal(DecodeNumlk(x),y_correct));\r\n\r\n\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":7,"created_by":16381,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":60,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":32,"created_at":"2014-03-02T03:23:21.000Z","updated_at":"2026-05-24T17:21:54.000Z","published_at":"2014-03-02T03:24:59.000Z","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\u003eThe numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am not able to read whatever I am typing. Can you help me decode what I am typing?\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\u003eExample\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[ Input:  \\\"0y n4036c2 2ey 5s br62en!\\\"\\n Output: \\\"my numlock key is broken!\\\"]]\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\u003eHappy decoding!\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":"Strings III","count":1,"selected":false}],[{"value":"medium","count":1,"selected":false}]],"term":"tag:\"numlock\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}