摘要：
We have a sequence of length N consisting of non-negative integers. Consider performing the following operation on this sequence until the largest ele 阅读全文
摘要：
Problem Statement In Takahashi Kingdom, there is an archipelago of N islands, called Takahashi Islands. For convenience, we will call them Island 1, I 阅读全文
摘要：
Problem Statement Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t ar 阅读全文