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HMMT 二月 2001 · 冲刺赛 · 第 37 题

HMMT February 2001 — Guts Round — Problem 37

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. [5] Alex and Bob have 30 matches. Alex picks up somewhere between one and six matches (inclusive), then Bob picks up somewhere between one and six matches, and so on. The player who picks up the last match wins. How many matches should Alex pick up at the beginning to guarantee that he will be able to win?
解析
  1. [5] Alex and Bob have 30 matches. Alex picks up somewhere between one and six matches (inclusive), then Bob picks up somewhere between one and six matches, and so on. The player who picks up the last match wins. How many matches should Alex pick up at the beginning to guarantee that he will be able to win? Solution: 2 .