摘要：武当派一共有 nn 人，门派内 nn 人按照武功高低进行排名，武功最高的人排名第 11，次高的人排名第 22，... 武功最低的人排名第 nn。现在我们用武功的排名来给每个人标号，除了祖师爷，每个人都有一个师父，每个人可能有多个徒弟。 我们知道，武当派人才辈出，连祖师爷的武功都只能排行到 pp。也就 阅读全文

摘要：A - Garden Problem Statement There is a farm whose length and width are A yard and B yard, respectively. A farmer, John, made a vertical road and a ho 阅读全文

摘要：Guessing Camels Jaap, Jan, and Thijs are on a trip to the desert after having attended the ACM ICPC World Finals 2015 in Morocco. The trip included a 阅读全文

摘要：Ultra-QuickSort Ultra-QuickSort In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct 阅读全文

摘要：BST Consider an infinite full binary search tree (see the figure below), the numbers in the nodes are 1, 2, 3, .... In a subtree whose root node is X, 阅读全文