{"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":666,"title":"Vector Linear sum:  (p1-m1)V1+(p2-m2)V2+...(pK-mk)Vk","description":"Calculate the sum of a Vector times coefficients expressed as two strings.\r\n\r\nExample:\r\n\r\nNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ] \r\n\r\nsum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\r\n\r\n\r\nsum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\r\n\r\nGiven v=[1 2 3 4 5 6]\r\n\r\npcoef='940200'\r\n\r\nmcoef='003068'\r\n\r\nsum= 9+8-9+8-30-48=-62\r\n\r\nThis initial solution proposed to minimize size was utilized by Tim.\r\n","description_html":"\u003cp\u003eCalculate the sum of a Vector times coefficients expressed as two strings.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cp\u003eNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ]\u003c/p\u003e\u003cp\u003esum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\u003c/p\u003e\u003cp\u003esum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\u003c/p\u003e\u003cp\u003eGiven v=[1 2 3 4 5 6]\u003c/p\u003e\u003cp\u003epcoef='940200'\u003c/p\u003e\u003cp\u003emcoef='003068'\u003c/p\u003e\u003cp\u003esum= 9+8-9+8-30-48=-62\u003c/p\u003e\u003cp\u003eThis initial solution proposed to minimize size was utilized by Tim.\u003c/p\u003e","function_template":"function sum = linear_vec_sum(v, pcoef, mcoef)\r\n  sum =-1;\r\nend\r\n","test_suite":"%%\r\nv=[10^8 10^7 10^6 10^5 10^4 10^3 100 10 1];\r\npcoef='103050709';\r\nmcoef='010203040';\r\nsum = 92847669;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n%%\r\nv=[5 2 8];\r\npcoef='840';\r\nmcoef='006';\r\nsum = 0;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n%%\r\nv=[12 6 16];\r\npcoef='110';\r\nmcoef='001';\r\nsum = 2;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":3097,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":57,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2012-05-05T20:37:00.000Z","updated_at":"2026-03-06T13:35:27.000Z","published_at":"2012-05-05T20:37:00.000Z","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\u003eCalculate the sum of a Vector times coefficients expressed as two strings.\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\u003eExample:\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\u003eNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ]\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\u003esum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\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\u003esum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\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\u003eGiven v=[1 2 3 4 5 6]\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\u003epcoef='940200'\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\u003emcoef='003068'\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\u003esum= 9+8-9+8-30-48=-62\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\u003eThis initial solution proposed to minimize size was utilized by Tim.\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":666,"title":"Vector Linear sum:  (p1-m1)V1+(p2-m2)V2+...(pK-mk)Vk","description":"Calculate the sum of a Vector times coefficients expressed as two strings.\r\n\r\nExample:\r\n\r\nNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ] \r\n\r\nsum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\r\n\r\n\r\nsum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\r\n\r\nGiven v=[1 2 3 4 5 6]\r\n\r\npcoef='940200'\r\n\r\nmcoef='003068'\r\n\r\nsum= 9+8-9+8-30-48=-62\r\n\r\nThis initial solution proposed to minimize size was utilized by Tim.\r\n","description_html":"\u003cp\u003eCalculate the sum of a Vector times coefficients expressed as two strings.\u003c/p\u003e\u003cp\u003eExample:\u003c/p\u003e\u003cp\u003eNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ]\u003c/p\u003e\u003cp\u003esum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\u003c/p\u003e\u003cp\u003esum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\u003c/p\u003e\u003cp\u003eGiven v=[1 2 3 4 5 6]\u003c/p\u003e\u003cp\u003epcoef='940200'\u003c/p\u003e\u003cp\u003emcoef='003068'\u003c/p\u003e\u003cp\u003esum= 9+8-9+8-30-48=-62\u003c/p\u003e\u003cp\u003eThis initial solution proposed to minimize size was utilized by Tim.\u003c/p\u003e","function_template":"function sum = linear_vec_sum(v, pcoef, mcoef)\r\n  sum =-1;\r\nend\r\n","test_suite":"%%\r\nv=[10^8 10^7 10^6 10^5 10^4 10^3 100 10 1];\r\npcoef='103050709';\r\nmcoef='010203040';\r\nsum = 92847669;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n%%\r\nv=[5 2 8];\r\npcoef='840';\r\nmcoef='006';\r\nsum = 0;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n%%\r\nv=[12 6 16];\r\npcoef='110';\r\nmcoef='001';\r\nsum = 2;\r\nassert(isequal(linear_vec_sum(v, pcoef, mcoef),sum))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":3097,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":57,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2012-05-05T20:37:00.000Z","updated_at":"2026-03-06T13:35:27.000Z","published_at":"2012-05-05T20:37:00.000Z","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\u003eCalculate the sum of a Vector times coefficients expressed as two strings.\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\u003eExample:\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\u003eNormal representation [ a b c ], [ p1 p2 p3 ], [ m1 m2 m3 ]\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\u003esum = a(p1-m1)+b(p2-m2)+c*(p3-m3)\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\u003esum=9a+4b-3c+2d-6e-8f would be for v=[a b c d e f]\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\u003eGiven v=[1 2 3 4 5 6]\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\u003epcoef='940200'\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\u003emcoef='003068'\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\u003esum= 9+8-9+8-30-48=-62\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\u003eThis initial solution proposed to minimize size was utilized by Tim.\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\\\" 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