{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-04-26T00:14:02.000Z","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":"2026-04-26T00:00:00.000Z","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":2457,"title":"Find 100 from a Matrix and Replace With 0 with less computation time","description":"pls use this matrix\r\n\r\n x = [208    40   167   180   112    70   192   215    90    19\r\n      231   100     9   100    97   100    65   100   100   100\r\n      32   245   100    70   195   167   129   208   149   135\r\n      233   124   239   100   203    41   178    62   140   199\r\n      161   204   173    24   100    30   228   237   234   239\r\n      24    36   193   210   125   127   245    89    73    33\r\n      71   107   190   177   114   245   140   100   193   145\r\n      140   100   100    81   165    87    35    64   192   120\r\n      245   202   167   100   181   149    38   157   100   100\r\n      100   245   100   100   193   100   100   121   145    86];\r\n\r\nand find out Computation time using tic and toc\r\nthis a challenge that who can give minimum computation tile\r\n\r\ni got \r\nt = 6.1917e-04 sec for Intel(R) Core(TM)2 CPU 6400  @ 2.13GHz  \r\nand RAM 4GB\r\n\r\ndo yourself and update values of t\r\n\r\nNote : Sysconfig is Not an issue finally we can analyze that so u can do by ur own machine and specify ur configuration\r\n","description_html":"\u003cp\u003epls use this matrix\u003c/p\u003e\u003cpre\u003e x = [208    40   167   180   112    70   192   215    90    19\r\n      231   100     9   100    97   100    65   100   100   100\r\n      32   245   100    70   195   167   129   208   149   135\r\n      233   124   239   100   203    41   178    62   140   199\r\n      161   204   173    24   100    30   228   237   234   239\r\n      24    36   193   210   125   127   245    89    73    33\r\n      71   107   190   177   114   245   140   100   193   145\r\n      140   100   100    81   165    87    35    64   192   120\r\n      245   202   167   100   181   149    38   157   100   100\r\n      100   245   100   100   193   100   100   121   145    86];\u003c/pre\u003e\u003cp\u003eand find out Computation time using tic and toc\r\nthis a challenge that who can give minimum computation tile\u003c/p\u003e\u003cp\u003ei got \r\nt = 6.1917e-04 sec for Intel® Core™2 CPU 6400  @ 2.13GHz  \r\nand RAM 4GB\u003c/p\u003e\u003cp\u003edo yourself and update values of t\u003c/p\u003e\u003cp\u003eNote : Sysconfig is Not an issue finally we can analyze that so u can do by ur own machine and specify ur configuration\u003c/p\u003e","function_template":"function y = Find_And_Replace(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [208    40   167   180   112    70   192   215    90    19\r\n     231   100     9   100    97   100    65   100   100   100\r\n     32   245   100    70   195   167   129   208   149   135\r\n     233   124   239   100   203    41   178    62   140   199\r\n     161   204   173    24   100    30   228   237   234   239\r\n     24    36   193   210   125   127   245    89    73    33\r\n     71   107   190   177   114   245   140   100   193   145\r\n     140   100   100    81   165    87    35    64   192   120\r\n     245   202   167   100   181   149    38   157   100   100\r\n     100   245   100   100   193   100   100   121   145    86];\r\n\r\ny_correct = [208    40   167   180   112    70   192   215    90    19\r\n            231     0     9     0    97     0    65     0     0     0\r\n            32   245     0    70   195   167   129   208   149   135\r\n            233   124   239     0   203    41   178    62   140   199\r\n            161   204   173    24     0    30   228   237   234   239\r\n            24    36   193   210   125   127   245    89    73    33\r\n            71   107   190   177   114   245   140     0   193   145\r\n            140     0     0    81   165    87    35    64   192   120\r\n            245   202   167     0   181   149    38   157     0     0\r\n            0   245     0     0   193     0     0   121   145    86];\r\nassert(isequal(Find_And_Replace(x),y_correct))\r\ntic\r\nFind_And_Replace(x);\r\nt = toc;\r\ndisplay(t);","published":true,"deleted":false,"likes_count":1,"comments_count":3,"created_by":1388,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":113,"test_suite_updated_at":"2014-07-21T15:39:51.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2014-07-21T08:26:01.000Z","updated_at":"2026-02-06T12:12:23.000Z","published_at":"2014-07-21T08:26:22.000Z","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\u003epls use this matrix\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[ x = [208    40   167   180   112    70   192   215    90    19\\n      231   100     9   100    97   100    65   100   100   100\\n      32   245   100    70   195   167   129   208   149   135\\n      233   124   239   100   203    41   178    62   140   199\\n      161   204   173    24   100    30   228   237   234   239\\n      24    36   193   210   125   127   245    89    73    33\\n      71   107   190   177   114   245   140   100   193   145\\n      140   100   100    81   165    87    35    64   192   120\\n      245   202   167   100   181   149    38   157   100   100\\n      100   245   100   100   193   100   100   121   145    86];]]\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 find out Computation time using tic and toc this a challenge that who can give minimum computation tile\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\u003ei got t = 6.1917e-04 sec for Intel® Core™2 CPU 6400 @ 2.13GHz and RAM 4GB\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\u003edo yourself and update values of t\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\u003eNote : Sysconfig is Not an issue finally we can analyze that so u can do by ur own machine and specify ur configuration\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":2457,"title":"Find 100 from a Matrix and Replace With 0 with less computation time","description":"pls use this matrix\r\n\r\n x = [208    40   167 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and specify ur configuration\r\n","description_html":"\u003cp\u003epls use this matrix\u003c/p\u003e\u003cpre\u003e x = [208    40   167   180   112    70   192   215    90    19\r\n      231   100     9   100    97   100    65   100   100   100\r\n      32   245   100    70   195   167   129   208   149   135\r\n      233   124   239   100   203    41   178    62   140   199\r\n      161   204   173    24   100    30   228   237   234   239\r\n      24    36   193   210   125   127   245    89    73    33\r\n      71   107   190   177   114   245   140   100   193   145\r\n      140   100   100    81   165    87    35    64   192   120\r\n      245   202   167   100   181   149    38   157   100   100\r\n      100   245   100   100   193   100   100   121   145    86];\u003c/pre\u003e\u003cp\u003eand find out Computation time using tic and toc\r\nthis a challenge that who can give minimum computation tile\u003c/p\u003e\u003cp\u003ei got \r\nt = 6.1917e-04 sec for Intel® Core™2 CPU 6400  @ 2.13GHz  \r\nand RAM 4GB\u003c/p\u003e\u003cp\u003edo yourself and update values of t\u003c/p\u003e\u003cp\u003eNote : Sysconfig is Not an issue finally we can analyze that so u can do by ur own machine and specify ur configuration\u003c/p\u003e","function_template":"function y = Find_And_Replace(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [208    40   167   180   112    70   192   215    90    19\r\n     231   100     9   100    97   100    65   100   100   100\r\n     32   245   100    70   195   167   129   208   149   135\r\n     233   124   239   100   203    41   178    62   140   199\r\n     161   204   173    24   100    30   228   237   234   239\r\n     24    36   193   210   125   127   245    89    73    33\r\n     71   107   190   177   114   245   140   100   193   145\r\n     140   100   100    81   165    87    35    64   192   120\r\n     245   202   167   100   181   149    38   157   100   100\r\n     100   245   100   100   193   100   100   121   145    86];\r\n\r\ny_correct = [208    40   167   180   112    70   192   215    90    19\r\n            231     0     9     0    97     0    65     0     0     0\r\n            32   245     0    70   195   167   129   208   149   135\r\n            233   124   239     0   203    41   178    62   140   199\r\n            161   204   173    24     0    30   228   237   234   239\r\n            24    36   193   210   125   127   245    89    73    33\r\n            71   107   190   177   114   245   140     0   193   145\r\n            140     0     0    81   165    87    35    64   192   120\r\n            245   202   167     0   181   149    38   157     0     0\r\n            0   245     0     0   193     0     0   121   145    86];\r\nassert(isequal(Find_And_Replace(x),y_correct))\r\ntic\r\nFind_And_Replace(x);\r\nt = 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  192   120\\n      245   202   167   100   181   149    38   157   100   100\\n      100   245   100   100   193   100   100   121   145    86];]]\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 find out Computation time using tic and toc this a challenge that who can give minimum computation tile\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\u003ei got t = 6.1917e-04 sec for Intel® Core™2 CPU 6400 @ 2.13GHz and RAM 4GB\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\u003edo yourself and update values of t\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle 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