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from top to bottom of a given triangle.\r\n","description_html":"\u003cp\u003eBy starting at the top of the triangle below and moving to adjacent numbers on the row below, the maximum total from top to bottom is 23.\u003c/p\u003e\u003cpre\u003e       3*\r\n     7*  4\r\n   2   4*  6\r\n 8   5   9*  3\u003c/pre\u003e\u003cp\u003e3 + 7 + 4 + 9 = 23\u003c/p\u003e\u003cp\u003eFind the maximum total from top to bottom of a given triangle.\u003c/p\u003e","function_template":"function s = maxPathSum(tr)\r\n    % tr: lower triangular matrix\r\n  s = inf;\r\nend","test_suite":"%%\r\nx = [3 0 0 0\r\n  7 4 0 0\r\n  2 4 6 0\r\n  8 5 9 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