摘要：
Problem Description世博会马上就要开幕了，福州大学组织了一次志愿者选拔活动。参加志愿者选拔的同学们排队接受面试官们的面试。参加面试的同学们按照先来先面试并且先结束的原则接受面试官们的考查。面试中每个人的人品是主要考查对象之一。（提高人品的方法有扶老奶... 阅读全文
摘要：
DescriptionAn array of size n ≤ 106 is given to you. There is a sliding window of size k which is moving from the very left of the arr... 阅读全文