681脑筋急转弯简单derivationshort
Length-and-Sum Congruence Window 1
题目
Given 13 integers a_1, ..., a_13, show that some nonempty consecutive block has length divisible by 3 and sum divisible by 4.
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
题目
Given 13 integers a_1, ..., a_13, show that some nonempty consecutive block has length divisible by 3 and sum divisible by 4.
解题计时
0:00
提交作答时记录，用于后续平均用时统计。