{"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":45991,"title":"Find the position of planet in solarsystem","description":"Write a funtion named *nthplanet* which takes name of the planet as input string and provides the position of the planet, starting from *Mercury* at *1st* position and *Neptune* at *8th* , as output.(For those who are sad because I ignored Pluto, Pluto is considered as Dwarf planet by IAU)\r\n\r\nIf\r\n\r\n  x = 'Earth'\r\n\r\nthen\r\n\r\n  nthplanet(x)\r\n\r\ngives\r\n\r\n  3\r\n\r\nPlease have a look at the Testsuite before you begin","description_html":"\u003cp\u003eWrite a funtion named \u003cb\u003enthplanet\u003c/b\u003e which takes name of the planet as input string and provides the position of the planet, starting from \u003cb\u003eMercury\u003c/b\u003e at \u003cb\u003e1st\u003c/b\u003e position and \u003cb\u003eNeptune\u003c/b\u003e at \u003cb\u003e8th\u003c/b\u003e , as output.(For those who are sad because I ignored Pluto, Pluto is considered as Dwarf planet by IAU)\u003c/p\u003e\u003cp\u003eIf\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ex = 'Earth'\r\n\u003c/pre\u003e\u003cp\u003ethen\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003enthplanet(x)\r\n\u003c/pre\u003e\u003cp\u003egives\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e3\r\n\u003c/pre\u003e\u003cp\u003ePlease have a look at the Testsuite before you begin\u003c/p\u003e","function_template":"function y = nthplanet(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 'earth';\r\ny_correct = 3;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'Neptune';\r\ny_correct = 8;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'MeRcUrY';\r\ny_correct = 1;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'SATURN';\r\ny_correct = 6;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'URAnus';\r\ny_correct = 7;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'MarS';\r\ny_correct = 4;\r\nassert(isequal(nthplanet(x),y_correct))","published":true,"deleted":false,"likes_count":2,"comments_count":2,"created_by":470183,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":31,"test_suite_updated_at":"2020-06-29T08:54:02.000Z","rescore_all_solutions":true,"group_id":1,"created_at":"2020-06-26T07:39:20.000Z","updated_at":"2026-05-30T15:08:43.000Z","published_at":"2020-06-26T07:55:19.000Z","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\u003eWrite a funtion named\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003enthplanet\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e which takes name of the planet as input string and provides the position of the planet, starting from\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eMercury\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e at\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e1st\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e position and\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eNeptune\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e at\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e8th\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e , as output.(For those who are sad because I ignored Pluto, Pluto is considered as Dwarf planet by IAU)\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle 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class=\"language-matlab\"\u003ex = 'Earth'\r\n\u003c/pre\u003e\u003cp\u003ethen\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003enthplanet(x)\r\n\u003c/pre\u003e\u003cp\u003egives\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e3\r\n\u003c/pre\u003e\u003cp\u003ePlease have a look at the Testsuite before you begin\u003c/p\u003e","function_template":"function y = nthplanet(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 'earth';\r\ny_correct = 3;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'Neptune';\r\ny_correct = 8;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'MeRcUrY';\r\ny_correct = 1;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'SATURN';\r\ny_correct = 6;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'URAnus';\r\ny_correct = 7;\r\nassert(isequal(nthplanet(x),y_correct))\r\n%%\r\nx = 'MarS';\r\ny_correct = 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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\u003eWrite a funtion named\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003enthplanet\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e which takes name of the planet as input string and provides the position of the planet, starting from\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:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eMercury\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e at\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e 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