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Commit ab00cfd

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feat: add solutions to lc problem: No.0929
No.0929.Unique Email Addresses
1 parent ad90370 commit ab00cfd

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4 files changed

+200
-0
lines changed

4 files changed

+200
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lines changed

‎solution/0900-0999/0929.Unique Email Addresses/README.md‎

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Original file line numberDiff line numberDiff line change
@@ -146,6 +146,91 @@ func numUniqueEmails(emails []string) int {
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}
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```
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### **JavaScript**
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```js
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const numUniqueEmails2 = function (emails) {
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const emailFilter = function (str) {
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let index = str.search(/@/);
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let s = str.substring(0, index);
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let s2 = str.substring(index + 1, str.length);
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let res = '';
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for (let i = 0; i < s.length; i++) {
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if (s[i] === '+') break;
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if (s[i] === '.') continue;
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res = res + s[i];
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}
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return res + s2;
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};
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let arr = [];
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for (let i = 0; i < emails.length; i++) {
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let t = emailFilter(emails[i]);
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if (arr.indexOf(t) === -1) {
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arr.push(t);
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}
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}
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return arr.length;
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};
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const numUniqueEmails = function (emails) {
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let arr = emails.map(str => {
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let index = str.search(/@/);
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let s = str.substring(0, index);
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let s2 = str.substring(index + 1, str.length);
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let res = '';
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for (let i = 0; i < s.length; i++) {
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if (s[i] === '+') break;
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if (s[i] === '.') continue;
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res = res + s[i];
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}
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return res + s2;
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});
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let set = new Set(arr);
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return set.size;
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};
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```
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### **TypeScript**
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```ts
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function numUniqueEmails(emails: string[]): number {
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return new Set(
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emails
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.map(email => email.split('@'))
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.map(([start, end]) => start.replace(/\+.*|\./g, '') + '@' + end),
202+
).size;
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}
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```
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### **Rust**
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```rust
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use std::collections::HashSet;
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impl Solution {
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pub fn num_unique_emails(emails: Vec<String>) -> i32 {
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let mut set = HashSet::new();
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for email in emails.iter() {
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let res: Vec<&str> = email.split('@').collect();
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let mut s = String::new();
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for &c in res[0].as_bytes().iter() {
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if c == b'.' {
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continue;
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}
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if c == b'+' {
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break;
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}
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s.push(c as char)
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}
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s.push('@');
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s.push_str(res[1]);
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set.insert(s);
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}
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set.len() as i32
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}
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}
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```
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149234
### **...**
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151236
```

‎solution/0900-0999/0929.Unique Email Addresses/README_EN.md‎

Lines changed: 85 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -134,6 +134,91 @@ func numUniqueEmails(emails []string) int {
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}
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```
136136

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### **JavaScript**
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```js
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const numUniqueEmails2 = function (emails) {
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const emailFilter = function (str) {
142+
let index = str.search(/@/);
143+
let s = str.substring(0, index);
144+
let s2 = str.substring(index + 1, str.length);
145+
let res = '';
146+
for (let i = 0; i < s.length; i++) {
147+
if (s[i] === '+') break;
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if (s[i] === '.') continue;
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res = res + s[i];
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}
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return res + s2;
152+
};
153+
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let arr = [];
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for (let i = 0; i < emails.length; i++) {
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let t = emailFilter(emails[i]);
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if (arr.indexOf(t) === -1) {
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arr.push(t);
159+
}
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}
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return arr.length;
162+
};
163+
164+
const numUniqueEmails = function (emails) {
165+
let arr = emails.map(str => {
166+
let index = str.search(/@/);
167+
let s = str.substring(0, index);
168+
let s2 = str.substring(index + 1, str.length);
169+
let res = '';
170+
for (let i = 0; i < s.length; i++) {
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if (s[i] === '+') break;
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if (s[i] === '.') continue;
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res = res + s[i];
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}
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return res + s2;
176+
});
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let set = new Set(arr);
178+
return set.size;
179+
};
180+
```
181+
182+
### **TypeScript**
183+
184+
```ts
185+
function numUniqueEmails(emails: string[]): number {
186+
return new Set(
187+
emails
188+
.map(email => email.split('@'))
189+
.map(([start, end]) => start.replace(/\+.*|\./g, '') + '@' + end),
190+
).size;
191+
}
192+
```
193+
194+
### **Rust**
195+
196+
```rust
197+
use std::collections::HashSet;
198+
impl Solution {
199+
pub fn num_unique_emails(emails: Vec<String>) -> i32 {
200+
let mut set = HashSet::new();
201+
for email in emails.iter() {
202+
let res: Vec<&str> = email.split('@').collect();
203+
let mut s = String::new();
204+
for &c in res[0].as_bytes().iter() {
205+
if c == b'.' {
206+
continue;
207+
}
208+
if c == b'+' {
209+
break;
210+
}
211+
s.push(c as char)
212+
}
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s.push('@');
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s.push_str(res[1]);
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set.insert(s);
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}
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set.len() as i32
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}
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}
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```
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137222
### **...**
138223

139224
```
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Original file line numberDiff line numberDiff line change
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use std::collections::HashSet;
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impl Solution {
3+
pub fn num_unique_emails(emails: Vec<String>) -> i32 {
4+
let mut set = HashSet::new();
5+
for email in emails.iter() {
6+
let res: Vec<&str> = email.split('@').collect();
7+
let mut s = String::new();
8+
for &c in res[0].as_bytes().iter() {
9+
if c == b'.' {
10+
continue;
11+
}
12+
if c == b'+' {
13+
break;
14+
}
15+
s.push(c as char)
16+
}
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s.push('@');
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s.push_str(res[1]);
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set.insert(s);
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}
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set.len() as i32
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}
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}
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,7 @@
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function numUniqueEmails(emails: string[]): number {
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return new Set(
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emails
4+
.map(email => email.split('@'))
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.map(([start, end]) => start.replace(/\+.*|\./g, '') + '@' + end),
6+
).size;
7+
}

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