F. String Set Queries time limit per test:3 seconds memory limit per test:768 megabytes input:standard input output:standard output You should process m queries over a set D of strings. Each query is one of three kinds: Add a string s to the set D. I…
ou should process m queries over a set D of strings. Each query is one of three kinds: Add a string s to the set D. It is guaranteed that the string s was not added before. Delete a string s from the set D. It is guaranteed that the string s is in th…
我现在在做一个叫<leetbook>的免费开源书项目,力求提供最易懂的中文思路,目前把解题思路都同步更新到gitbook上了,需要的同学可以去看看 书的地址:https://hk029.gitbooks.io/leetbook/ 008. String to Integer (atoi) [E] 题目 Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cas…