{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2025-12-14T01:33:56.000Z","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":"2025-12-14T00:00:00.000Z","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":44787,"title":"What can you get for exactly amount of money(harder)","description":"Inspired by \"Problem 42996. what can you get for exactly amount of money\"\r\n\u003chttps://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003e\r\nProblem 42996 is a good problem, but the test suit is too weak.\r\n\r\nYou go to store, where each product has price. Prices are in vector\r\n\r\nv = [ 195 125 260 440 395 290]\r\nand you have amount of money s=570\r\n\r\nQuestion is what can you buy, if you want to use whole amount of money\r\n\r\nFor this data answer is\r\n\r\nres=[ 125 125 125 195]\r\n\r\nThe answer may not be unique, return any feasible answer.\r\nDo not cheat please.\r\n\r\nIn this hard version, \r\n1 \u003c= length(v) \u003c= 50\r\n1 \u003c= s \u003c= 10000000019 (1e10 + 19)\r\n","description_html":"\u003cp\u003eInspired by \"Problem 42996. what can you get for exactly amount of money\" \u003ca href = \"https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\"\u003ehttps://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003c/a\u003e\r\nProblem 42996 is a good problem, but the test suit is too weak.\u003c/p\u003e\u003cp\u003eYou go to store, where each product has price. Prices are in vector\u003c/p\u003e\u003cp\u003ev = [ 195 125 260 440 395 290]\r\nand you have amount of money s=570\u003c/p\u003e\u003cp\u003eQuestion is what can you buy, if you want to use whole amount of money\u003c/p\u003e\u003cp\u003eFor this data answer is\u003c/p\u003e\u003cp\u003eres=[ 125 125 125 195]\u003c/p\u003e\u003cp\u003eThe answer may not be unique, return any feasible answer.\r\nDo not cheat please.\u003c/p\u003e\u003cp\u003eIn this hard version, \r\n1 \u0026lt;= length(v) \u0026lt;= 50\r\n1 \u0026lt;= s \u0026lt;= 10000000019 (1e10 + 19)\u003c/p\u003e","function_template":"function res = buy(v, s)\r\nres = [1, 2, 3];\r\nend","test_suite":"%%\r\nv = [ 195 125 260 440 395 290];\r\ns = 570;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\t\r\n%%\r\nv = [ 150 180 60 40];\r\ns = 210;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [ 150 180 60 40];\r\ns = 1e10;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [123456, 963852, 753159, 7841, 122];\r\ns = 1e10+19;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [319,2770,462,972,8235,6949,3171,9503,345,4388,3816,7656,7952,1869,4898,4456,6464,7094,7547,2761,6798,6551,1627,1190,4984,9598,3404,5853,2239,7513];\r\ns = 1e10+19;\r\ntic;\r\nres = buy(v, s);\r\ntoc;\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [3898,2417,4040,965,1320,9421,9562,5753,598,2348,3532,8212,155,431,1690,6492,7318,6478,4510,5471,2964,7447,1890,6868,1836,3685,6257,7803,812,9294,7758,4868,4359,4468,3064,5086,5108,8177,7949,6444,3787,8116,5329,3508,9391,8760,5502,6225,5871,2078];\r\ns = 1e10+19;\r\ntic;\r\nres = buy(v, s);\r\ntoc;\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))","published":true,"deleted":false,"likes_count":3,"comments_count":14,"created_by":8269,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":15,"test_suite_updated_at":"2018-11-12T07:09:17.000Z","rescore_all_solutions":false,"group_id":71,"created_at":"2018-11-12T06:38:43.000Z","updated_at":"2025-12-14T23:03:12.000Z","published_at":"2018-11-12T06:39:22.000Z","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\u003eInspired by \\\"Problem 42996. what can you get for exactly amount of money\\\"\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026lt;https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026gt; Problem 42996 is a good problem, but the test suit is too weak.\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\u003eYou go to store, where each product has price. Prices are in vector\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\u003ev = [ 195 125 260 440 395 290] and you have amount of money s=570\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\u003eQuestion is what can you buy, if you want to use whole amount of money\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 this data answer is\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\u003eres=[ 125 125 125 195]\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\u003eThe answer may not be unique, return any feasible answer. Do not cheat please.\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\u003eIn this hard version, 1 \u0026lt;= length(v) \u0026lt;= 50 1 \u0026lt;= s \u0026lt;= 10000000019 (1e10 + 19)\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":44787,"title":"What can you get for exactly amount of money(harder)","description":"Inspired by \"Problem 42996. what can you get for exactly amount of money\"\r\n\u003chttps://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003e\r\nProblem 42996 is a good problem, but the test suit is too weak.\r\n\r\nYou go to store, where each product has price. Prices are in vector\r\n\r\nv = [ 195 125 260 440 395 290]\r\nand you have amount of money s=570\r\n\r\nQuestion is what can you buy, if you want to use whole amount of money\r\n\r\nFor this data answer is\r\n\r\nres=[ 125 125 125 195]\r\n\r\nThe answer may not be unique, return any feasible answer.\r\nDo not cheat please.\r\n\r\nIn this hard version, \r\n1 \u003c= length(v) \u003c= 50\r\n1 \u003c= s \u003c= 10000000019 (1e10 + 19)\r\n","description_html":"\u003cp\u003eInspired by \"Problem 42996. what can you get for exactly amount of money\" \u003ca href = \"https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\"\u003ehttps://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003c/a\u003e\r\nProblem 42996 is a good problem, but the test suit is too weak.\u003c/p\u003e\u003cp\u003eYou go to store, where each product has price. Prices are in vector\u003c/p\u003e\u003cp\u003ev = [ 195 125 260 440 395 290]\r\nand you have amount of money s=570\u003c/p\u003e\u003cp\u003eQuestion is what can you buy, if you want to use whole amount of money\u003c/p\u003e\u003cp\u003eFor this data answer is\u003c/p\u003e\u003cp\u003eres=[ 125 125 125 195]\u003c/p\u003e\u003cp\u003eThe answer may not be unique, return any feasible answer.\r\nDo not cheat please.\u003c/p\u003e\u003cp\u003eIn this hard version, \r\n1 \u0026lt;= length(v) \u0026lt;= 50\r\n1 \u0026lt;= s \u0026lt;= 10000000019 (1e10 + 19)\u003c/p\u003e","function_template":"function res = buy(v, s)\r\nres = [1, 2, 3];\r\nend","test_suite":"%%\r\nv = [ 195 125 260 440 395 290];\r\ns = 570;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\t\r\n%%\r\nv = [ 150 180 60 40];\r\ns = 210;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [ 150 180 60 40];\r\ns = 1e10;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [123456, 963852, 753159, 7841, 122];\r\ns = 1e10+19;\r\ntic\r\nres = buy(v, s);\r\ntoc\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [319,2770,462,972,8235,6949,3171,9503,345,4388,3816,7656,7952,1869,4898,4456,6464,7094,7547,2761,6798,6551,1627,1190,4984,9598,3404,5853,2239,7513];\r\ns = 1e10+19;\r\ntic;\r\nres = buy(v, s);\r\ntoc;\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))\r\n\r\n%%\r\nv = [3898,2417,4040,965,1320,9421,9562,5753,598,2348,3532,8212,155,431,1690,6492,7318,6478,4510,5471,2964,7447,1890,6868,1836,3685,6257,7803,812,9294,7758,4868,4359,4468,3064,5086,5108,8177,7949,6444,3787,8116,5329,3508,9391,8760,5502,6225,5871,2078];\r\ns = 1e10+19;\r\ntic;\r\nres = buy(v, s);\r\ntoc;\r\nassert(sum(res) == s);\r\nassert(all(ismember(res, v)))","published":true,"deleted":false,"likes_count":3,"comments_count":14,"created_by":8269,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":15,"test_suite_updated_at":"2018-11-12T07:09:17.000Z","rescore_all_solutions":false,"group_id":71,"created_at":"2018-11-12T06:38:43.000Z","updated_at":"2025-12-14T23:03:12.000Z","published_at":"2018-11-12T06:39:22.000Z","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\u003eInspired by \\\"Problem 42996. what can you get for exactly amount of money\\\"\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026lt;https://ww2.mathworks.cn/matlabcentral/cody/problems/42996-what-can-you-get-for-exactly-amount-of-money\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026gt; Problem 42996 is a good problem, but the test suit is too weak.\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\u003eYou go to store, where each product has price. Prices are in vector\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\u003ev = [ 195 125 260 440 395 290] and you have amount of money s=570\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\u003eQuestion is what can you buy, if you want to use whole amount of money\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 this data answer is\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\u003eres=[ 125 125 125 195]\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\u003eThe answer may not be unique, return any feasible answer. Do not cheat please.\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\u003eIn this hard version, 1 \u0026lt;= length(v) \u0026lt;= 50 1 \u0026lt;= s \u0026lt;= 10000000019 (1e10 + 19)\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\"}]}"}],"term":"tag:\"knapsack 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