摘要： Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement You are given positive integers X and Y. If there exists a positive inte 阅读全文

摘要： According to Wikipedia: Insertion sort iterates, consuming one input element each repetition, and growing a sorted output list. At each iteration, ins 阅读全文

摘要： Given a singly linked list L with integer keys, you are supposed to remove the nodes with duplicated absolute values of the keys. That is, for each va 阅读全文

摘要： Time limit : 2sec / Memory limit : 256MB Score : 500 points Problem Statement AtCoDeer is thinking of painting an infinite two-dimensional grid in a c 阅读全文

摘要： Time limit : 2sec / Memory limit : 256MB Score : 400 points Problem Statement There are N people standing on the x-axis. Let the coordinate of Person  阅读全文

摘要： Time limit : 2sec / Memory limit : 256MB Score : 200 points Problem Statement You have A 500-yen coins, B 100-yen coins and C 50-yen coins (yen is the 阅读全文

摘要： A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find t 阅读全文

摘要： The string APPAPT contains two PAT's as substrings. The first one is formed by the 2nd, the 4th, and the 6th characters, and the second one is formed 阅读全文

摘要： A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer 阅读全文

摘要： According to Wikipedia: Insertion sort iterates, consuming one input element each repetition, and growing a sorted output list. Each iteration, insert 阅读全文