暑假集训系列题解（九）
暑假集训系列题解（九）题目1题目链接Spread of Information题目描述Takahashi Kingdom has N towns, called Town 1 through N. There are N−1 roads in this ...
暑假集训系列题解（九）题目1题目链接Spread of Information题目描述Takahashi Kingdom has N towns, called Town 1 through N. There are N−1 roads in this ...