摘要： It is vitally important to have all the cities connected by highways in a war. If a city is conquered by the enemy, all the highways from/toward that 阅读全文

摘要： Given a hash table of size N, we can define a hash function (. Suppose that the linear probing is used to solve collisions, we can easily obtain the s 阅读全文

摘要： After finishing her tour around the Earth, CYLL is now planning a universal travel sites development project. After a careful investigation, she has a 阅读全文

摘要： You are supposed to implement the functions of account "Log in" and "Register" for the most popular instant messager QQ. The most challenging part is 阅读全文

摘要： Given any permutation of the numbers {0, 1, 2,..., N−1}, it is easy to sort them in increasing order. But what if Swap(0, *) is the ONLY operation tha 阅读全文

摘要： Given the relations of all the activities of a project, you are supposed to find the earliest completion time of the project. Input Specification: Eac 阅读全文

摘要： This time let us consider the situation in the movie "Live and Let Die" in which James Bond, the world's most famous spy, was captured by a group of d 阅读全文

摘要： This time let us consider the situation in the movie "Live and Let Die" in which James Bond, the world's most famous spy, was captured by a group of d 阅读全文

摘要： With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas s 阅读全文

摘要： A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Specification: The inpu 阅读全文