Package g1001_1100.s1039_minimum_score_triangulation_of_polygon

Class Solution

  • public class Solution
extends Object
    1039 - Minimum Score Triangulation of Polygon.

    Medium

    You have a convex n-sided polygon where each vertex has an integer value. You are given an integer array values where values[i] is the value of the ith vertex (i.e., clockwise order ).

    You will triangulate the polygon into n - 2 triangles. For each triangle, the value of that triangle is the product of the values of its vertices, and the total score of the triangulation is the sum of these values over all n - 2 triangles in the triangulation.

    Return the smallest possible total score that you can achieve with some triangulation of the polygon.

    Example 1:

    Input: values = [1,2,3]

    Output: 6

    Explanation: The polygon is already triangulated, and the score of the only triangle is 6.

    Example 2:

    Input: values = [3,7,4,5]

    Output: 144

    Explanation: There are two triangulations, with possible scores: 3*7*5 + 4*5*7 = 245, or 3*4*5 + 3*4*7 = 144. The minimum score is 144.

    Example 3:

    Input: values = [1,3,1,4,1,5]

    Output: 13

    Explanation: The minimum score triangulation has score 1*1*3 + 1*1*4 + 1*1*5 + 1*1*1 = 13.

    Constraints:

    • n == values.length
    • 3 <= n <= 50
    • 1 <= values[i] <= 100

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • minScoreTriangulation

        public int minScoreTriangulation​(int[] values)