七月 30, 2021
2016-2017 ACM-ICPC Pacific Northwest Regional Contest (Div. 1) J - Shopping
题目概述$n$个数的数列 $a_n$ ,$q$次询问。 每次询问给出数$v$，区间端点$[l，r]$,问用$v$按顺序依次对数列$[l,r]$中的数取模...
八月 02, 2021
Codeforces 1549D - Integers Have Friends
题目概述Define a subarray $a_i,a_{i+1},…,a_j$ to be a frie...