{"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":44814,"title":"Find the complement of a number in binary","description":"Input x is a decimal number and output y is the complement of binary representation of x.\r\n\r\nFor example, x = 10 has the binary representation of 00001010 (Assume, 8-bit \r\n binary representation). \r\n\r\n  [0   0   0   0   1   0   1   0]\r\n\r\n\r\nAnd the output is\r\n\r\n  y = [1   1   1   1   0   1   0   1]\r\n\r\n\r\n","description_html":"\u003cp\u003eInput x is a decimal number and output y is the complement of binary representation of x.\u003c/p\u003e\u003cp\u003eFor example, x = 10 has the binary representation of 00001010 (Assume, 8-bit \r\n binary representation).\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e[0   0   0   0   1   0   1   0]\r\n\u003c/pre\u003e\u003cp\u003eAnd the output is\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ey = [1   1   1   1   0   1   0   1]\r\n\u003c/pre\u003e","function_template":"function y = find_comp(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = [ 1   1   1   1   1   1   1   0];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = 67;\r\ny_correct = [1   0   1   1   1   1   0   0];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = 114;\r\ny_correct = [ 1   0   0   0   1   1   0   1];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = -16;\r\ny_correct = [0   0   0   0   1   1   1   1];\r\nassert(isequal(find_comp(x), y_correct))\r\n\r\n%%\r\nx = -45;\r\ny_correct = [0   0   1   0   1   1   0   0];\r\nassert(isequal(find_comp(x), y_correct))","published":true,"deleted":false,"likes_count":3,"comments_count":1,"created_by":276103,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":47,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2019-01-02T03:46:55.000Z","updated_at":"2026-05-30T01:37:49.000Z","published_at":"2019-01-02T03:46:55.000Z","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\u003eInput x is a decimal number and output y is the complement of binary representation of x.\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, x = 10 has the binary representation of 00001010 (Assume, 8-bit binary representation).\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   0   0   0   1   0   1   0]]]\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 the output is\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[y = [1   1   1   1   0   1   0   1]]]\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\"}]}"},{"id":42709,"title":"Find 1's Complement","description":"Find 1's complement of a binary number\r\n\r\nFor Example:\r\n\r\nx = 10011010\r\n\r\n1's complement of x = 01100101","description_html":"\u003cp\u003eFind 1's complement of a binary number\u003c/p\u003e\u003cp\u003eFor Example:\u003c/p\u003e\u003cp\u003ex = 10011010\u003c/p\u003e\u003cp\u003e1's complement of x = 01100101\u003c/p\u003e","function_template":"function y = one_Comp(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 0;\r\nassert(isequal(one_Comp(x),y_correct))\r\n\r\n%%\r\nx = 100;\r\ny_correct = [0,1,1];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 1110;\r\ny_correct = [0,0,0,1];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 101101101001;\r\ny_correct = [0,1,0,0,1,0,0,1,0,1,1,0];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 00110;\r\ny_correct = [1,1,0,0,1];\r\nassert(isequal(one_Comp(x),y_correct))","published":true,"deleted":false,"likes_count":1,"comments_count":7,"created_by":48874,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":25,"test_suite_updated_at":"2016-08-28T07:13:17.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2016-01-09T21:58:02.000Z","updated_at":"2026-05-28T14:48:05.000Z","published_at":"2016-01-09T21:58:51.000Z","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\u003eFind 1's complement of a binary 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\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eFor Example:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ex = 10011010\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e1's complement of x = 01100101\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":44814,"title":"Find the complement of a number in binary","description":"Input x is a decimal number and output y is the complement of binary representation of x.\r\n\r\nFor example, x = 10 has the binary representation of 00001010 (Assume, 8-bit \r\n binary representation). \r\n\r\n  [0   0   0   0   1   0   1   0]\r\n\r\n\r\nAnd the output is\r\n\r\n  y = [1   1   1   1   0   1   0   1]\r\n\r\n\r\n","description_html":"\u003cp\u003eInput x is a decimal number and output y is the complement of binary representation of x.\u003c/p\u003e\u003cp\u003eFor example, x = 10 has the binary representation of 00001010 (Assume, 8-bit \r\n binary representation).\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e[0   0   0   0   1   0   1   0]\r\n\u003c/pre\u003e\u003cp\u003eAnd the output is\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ey = [1   1   1   1   0   1   0   1]\r\n\u003c/pre\u003e","function_template":"function y = find_comp(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = [ 1   1   1   1   1   1   1   0];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = 67;\r\ny_correct = [1   0   1   1   1   1   0   0];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = 114;\r\ny_correct = [ 1   0   0   0   1   1   0   1];\r\nassert(isequal(find_comp(x),y_correct))\r\n\r\n%%\r\nx = -16;\r\ny_correct = [0   0   0   0   1   1   1   1];\r\nassert(isequal(find_comp(x), y_correct))\r\n\r\n%%\r\nx = -45;\r\ny_correct = [0   0   1   0   1   1   0   0];\r\nassert(isequal(find_comp(x), y_correct))","published":true,"deleted":false,"likes_count":3,"comments_count":1,"created_by":276103,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":47,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2019-01-02T03:46:55.000Z","updated_at":"2026-05-30T01:37:49.000Z","published_at":"2019-01-02T03:46:55.000Z","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\u003eInput x is a decimal number and output y is the complement of binary representation of x.\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, x = 10 has the binary representation of 00001010 (Assume, 8-bit binary representation).\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   0   0   0   1   0   1   0]]]\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 the output is\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[y = [1   1   1   1   0   1   0   1]]]\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\"}]}"},{"id":42709,"title":"Find 1's Complement","description":"Find 1's complement of a binary number\r\n\r\nFor Example:\r\n\r\nx = 10011010\r\n\r\n1's complement of x = 01100101","description_html":"\u003cp\u003eFind 1's complement of a binary number\u003c/p\u003e\u003cp\u003eFor Example:\u003c/p\u003e\u003cp\u003ex = 10011010\u003c/p\u003e\u003cp\u003e1's complement of x = 01100101\u003c/p\u003e","function_template":"function y = one_Comp(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 0;\r\nassert(isequal(one_Comp(x),y_correct))\r\n\r\n%%\r\nx = 100;\r\ny_correct = [0,1,1];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 1110;\r\ny_correct = [0,0,0,1];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 101101101001;\r\ny_correct = [0,1,0,0,1,0,0,1,0,1,1,0];\r\nassert(isequal(one_Comp(x),y_correct))\r\n%%\r\nx = 00110;\r\ny_correct = [1,1,0,0,1];\r\nassert(isequal(one_Comp(x),y_correct))","published":true,"deleted":false,"likes_count":1,"comments_count":7,"created_by":48874,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":25,"test_suite_updated_at":"2016-08-28T07:13:17.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2016-01-09T21:58:02.000Z","updated_at":"2026-05-28T14:48:05.000Z","published_at":"2016-01-09T21:58:51.000Z","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\u003eFind 1's complement of a binary 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\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eFor Example:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ex = 10011010\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e1's complement of x = 01100101\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},{"value":"medium","count":1,"selected":false}]],"term":"tag:\"complement\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}