{"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":2396,"title":"last n digit of a power function","description":"Calculate the power of a given a base, exponent. Return the last n digit number.\r\n\r\n  Example 1:\r\n  base = 3; expo = 8; n = 3;\r\n  3^8 = 6561\r\n  return the last 3 digit number 561.\r\n\r\n  Example 2:\r\n  base = 3; expo = 10; n = 3;\r\n  3^10 = 59049\r\n  return the last 3 digit number 49.\r\n\r\n* base, exponent and n are natural numbers","description_html":"\u003cp\u003eCalculate the power of a given a base, exponent. Return the last n digit number.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003eExample 1:\r\nbase = 3; expo = 8; n = 3;\r\n3^8 = 6561\r\nreturn the last 3 digit number 561.\r\n\u003c/pre\u003e\u003cpre class=\"language-matlab\"\u003eExample 2:\r\nbase = 3; expo = 10; n = 3;\r\n3^10 = 59049\r\nreturn the last 3 digit number 49.\r\n\u003c/pre\u003e\u003cul\u003e\u003cli\u003ebase, exponent and n are natural numbers\u003c/li\u003e\u003c/ul\u003e","function_template":"function res = lastndigit(base,expo,n)\r\n  res = n;\r\nend","test_suite":"%%\r\nbase = 3; expo = 8; n = 2;\r\ny_correct = 61;\r\nassert(isequal(lastndigit(base,expo,n),y_correct))\r\n\r\n%%\r\nbase = 7; expo = 12; n  = 5;\r\ny_correct = 87201;\r\nassert(isequal(lastndigit(base,expo,n),y_correct))\r\n\r\n%%\r\nbase = 25; expo = 71; n = 15;\r\ny_correct = 896881103515625;\r\nassert(isequal(lastndigit(base,expo,n),y_correct))\r\n\r\n%%\r\nbase = 768; expo = 1579; n = 22;\r\ny_correct = 3750595090000885317632;\r\nassert(isequal(lastndigit(base,expo,n),y_correct))\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":1,"created_by":27005,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":26,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2014-06-30T16:29:27.000Z","updated_at":"2026-05-28T02:54:43.000Z","published_at":"2014-06-30T16:31:43.000Z","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\u003eCalculate the power of a given a base, exponent. Return the last n digit number.\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[Example 1:\\nbase = 3; expo = 8; n = 3;\\n3^8 = 6561\\nreturn the last 3 digit number 561.\\n\\nExample 2:\\nbase = 3; expo = 10; n = 3;\\n3^10 = 59049\\nreturn the last 3 digit number 49.]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"ListParagraph\\\"/\u003e\u003cw:numPr\u003e\u003cw:numId w:val=\\\"1\\\"/\u003e\u003c/w:numPr\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ebase, exponent and n are natural numbers\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":2396,"title":"last n digit of a power function","description":"Calculate the power of a given a base, exponent. 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