张大大123

摘要： 题目如下： Given any string of N (>=5) characters, you are asked to form the characters into the shape of U. For example, "helloworld" can be printed a... 阅读全文

摘要： 题目如下： To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share th... 阅读全文

摘要： 题目如下： 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 ... 阅读全文