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CF 1642 E. Anonymity Is Important 线段树 + 离线

文章目录 题意思路 传送门 题意 有 n n n个人，给你 q q q个请求，分以下三种：

PAT (Advanced Level) Practice 1117 Eddington Number (25 分) 凌宸1642

PAT (Advanced Level) Practice 1117 Eddington Number (25 分) 凌宸1642 题目描述： British astronomer Eddington liked to ride a bike. It is said that in order to show off his skill, he has even defined an "Eddington number", E -- that is, the maximum integ

PAT (Advanced Level) Practice 1145 Hashing - Average Search Time (25 分) 凌宸1642

PAT (Advanced Level) Practice 1145 Hashing - Average Search Time (25 分) 凌宸1642 题目描述： The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of integer keys from t

PAT (Advanced Level) Practice 1109 Group Photo (25 分) 凌宸1642

PAT (Advanced Level) Practice 1109 Group Photo (25 分) 凌宸1642 题目描述： Formation is very important when taking a group photo. Given the rules of forming K rows with N people as the following: The number of people in each row must be N/K (round down to the

PAT (Advanced Level) Practice 1120 Friend Numbers (20 分) 凌宸1642

PAT (Advanced Level) Practice 1120 Friend Numbers (20 分) 凌宸1642 题目描述： Two integers are called "friend numbers" if they share the same sum of their digits, and the sum is their "friend ID". For example, 123 and 51 are friend numbers s

DFS 深搜专题 入门典例 -- 凌宸1642

DFS 深搜专题 入门典例 -- 凌宸1642 深度优先搜索 是一种 枚举所有完整路径以遍历所有情况的搜索方法 ，使用 递归 可以很好的实现 深度优先搜索。 1 最大价值 题目描述 ​ 有 n 件物品，每件物品的重量为 w[i] , 价值为 c[i] 。现在需要选出若干件物品放入一个容器为 V 的背包中，使得

PAT (Advanced Level) Practice 1035 Password (20 分) 凌宸1642

PAT (Advanced Level) Practice 1035 Password (20 分) 凌宸1642 题目描述： To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it is hard to distinguish 1 (one