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HMMT 二月 2013 · 团队赛 · 第 5 题

HMMT February 2013 — Team Round — Problem 5

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. [ 25 ] Thaddeus is given a 2013 ⇥ 2013 array of integers each between 1 and 2013, inclusive. He is allowed two operations:
解析
  1. [ 25 ] Thaddeus is given a 2013 × 2013 array of integers each between 1 and 2013, inclusive. He is allowed two operations: