929. Unique Email Addresses (Easy)# Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these em…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

统计有几种邮箱地址. 邮箱名类型:local@domain 规则:1. local中出现"."的,忽略. a.bc=abc 2. local中出现"+"的,+以及之后的local全部忽略. a+bc=a 思路: 利用set存,水题没啥好说的 Runtime: 20 ms, faster than 96.66% of C++ online submissions for Unique Email Addresses. class Solution { public:…

929. Unique Email Addresses Easy 22766FavoriteShare Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase l…

problem 929. Unique Email Addresses solution: class Solution { public: int numUniqueEmails(vector<string>& emails) { unordered_set<string> tmp; for(auto email:emails) { std::size_t at = email.find('@'); string local = ""; ; i<…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 位运算 日期 题目地址:https://leetcode.com/problems/total-hamming-distance/description/ 题目描述 The Hamming distance between two integers is the number of positions at which the correspondi…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

Description Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or…

题目要求 Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. If you add periods ('.') between some characters in the local name…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

这是悦乐书的第356次更新,第383篇原创 01看题和准备 今天介绍的是LeetCode算法题中Easy级别的第218题(顺位题号是927).每封电子邮件都包含本地名称和域名,以@符号分隔. 例如,在alice@leetcode.com中,alice是本地名称,leetcode.com是域名. 除了小写字母,这些电子邮件可能包含'.'或'+'. 如果在电子邮件地址的本地名称部分中的某些字符之间添加句点('.'),则在那里发送的邮件将转发到本地名称中没有点的同一地址.例如,"alice.z@lee…

题目如下: Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s.…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 set + 字符串操作 参考资料 日期 题目地址:https://leetcode.com/problems/unique-email-addresses/description/ 题目描述 Every email consists of a local name and a domain name, separated by the @ sign.…

这道题是LeetCode里的第929道题. 题目要求: 每封电子邮件都由一个本地名称和一个域名组成,以 @ 符号分隔. 例如,在 alice@leetcode.com中, alice 是本地名称,而 leetcode.com 是域名. 除了小写字母,这些电子邮件还可能包含 '.' 或 '+'. 如果在电子邮件地址的本地名称部分中的某些字符之间添加句点('.'),则发往那里的邮件将会转发到本地名称中没有点的同一地址.例如,"alice.z@leetcode.com" 和 "al…

题目标签:String 题目说明 有两个规则针对于 local name. 所以先把local name 和 domain name 分开. 两个规则是: rule 1:'.' 会被去除. (利用replace 把 '.' 换成 '') rule 2:'+' 之后的所有东西都会被 去除.(利用substring 把 '+' 之后的去除) Java Solution: Runtime beats 34.05% 完成日期:12/08/2018 关键点:substring 和 replace clas…

1.题目描述 2.问题分析 将字符串中的 ‘.’ 去掉,将 ‘+’后面直到‘@’的字符串去掉,然后利用set的特性. 3.代码 int numUniqueEmails(vector<string>& emails) { || emails.size() == ) return emails.size(); set<string> se; for (vector<string>::iterator it = emails.begin(); it != emails…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

Every email consists of a local name and a domain name, separated by the @ sign. For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name. Besides lowercase letters, these emails may contain '.'s or '+'s. If yo…

每封电子邮件都由一个本地名称和一个域名组成,以 @ 符号分隔. 例如,在 alice@leetcode.com中, alice 是本地名称,而 leetcode.com 是域名. 除了小写字母,这些电子邮件还可能包含 ',' 或 '+'. 如果在电子邮件地址的本地名称部分中的某些字符之间添加句点('.'),则发往那里的邮件将会转发到本地名称中没有点的同一地址.例如,"alice.z@leetcode.com" 和 "alicez@leetcode.com" 会转发到…

461. Hamming Distance Easy The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y =…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 Java解法 方法一:异或 + 字符串分割 方法二:异或 + 字符串遍历 方法三:异或 + 位统计 二刷 python解法 方法一:异或 + 字符串count 方法二:循环异或 方法三:异或 + 单次遍历 日期 题目地址: https://leetcode.com/problems/hamming-distance/ Total Accepted:…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total Hamming distance between all pairs of the given numbers. Example: Input: 4, 14, 2 Output: 6 Explanat…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

原题链接在这里:https://leetcode.com/problems/total-hamming-distance/ 题目: The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total Hamming distance between all pairs…

原题链接在这里:https://leetcode.com/problems/hamming-distance/ 题目: The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y …

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

LeetCode--Hamming Distance Question The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note: 0 ≤ x, y < 2^31. Example: Input:…

[Leetcode/Javascript] 461.Hamming Distance 题目 The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note: 0 ≤ x, y < 231. Exampl…