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HMMT 十一月 2020 · 冲刺赛 · 第 1 题

HMMT November 2020 — Guts Round — Problem 1

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. [5] Two hexagons are attached to form a new polygon P . Compute the minimum number of sides that P can have.
解析
  1. [5] Two hexagons are attached to form a new polygon P . Compute the minimum number of sides that P can have. Proposed by: Daniel Zhu Answer: 3 Solution: A triangle can be split into two hexagons; in other words, two concave hexagons can be attached to form a triangle, like the following: