2299.强密码检验器II
链接:2299.强密码检验器II
难度:Easy
标签:字符串
简介:给你一个字符串 password ,如果它是一个 强 密码,返回 true,否则返回 false 。
题解 1 - cpp
- 编辑时间:2023-01-19
- 内存消耗:5.9MB
- 编程语言:cpp
- 解法介绍:遍历。
class Solution {
public:
bool strongPasswordCheckerII(string password) {
bool f[4] = {false};
string spec = "!@#$%^&*()-+";
for (int i = 0; i < password.size(); i++) {
if (islower(password[i])) f[0] = true;
if (isupper(password[i])) f[1] = true;
if (isdigit(password[i])) f[2] = true;
if (spec.find(password[i]) != string::npos) f[3] = true;
if (i != 0 && password[i] == password[i - 1]) return false;
}
return f[0] && f[1] && f[2] && f[3] && password.size() >= 8;
}
};
题解 2 - rust
- 编辑时间:2023-01-19
- 内存消耗:2MB
- 编程语言:rust
- 解法介绍:同上。
impl Solution {
pub fn strong_password_checker_ii(password: String) -> bool {
let spec = "!@#$%^&*()-+";
let s = password.chars().collect::<Vec<char>>();
let mut f = [false; 4];
for i in 0..s.len() {
if s[i].is_lowercase() {
f[0] = true;
}
if s[i].is_uppercase() {
f[1] = true;
}
if s[i].is_digit(10) {
f[2] = true;
}
if spec.contains(s[i]) {
f[3] = true;
}
if i > 0 && s[i] == s[i - 1] {
return false;
}
}
s.len() >= 8 && f[0] && f[1] && f[2] && f[3]
}
题解 3 - python
- 编辑时间:2023-01-19
- 执行用时:40ms
- 内存消耗:14.9MB
- 编程语言:python
- 解法介绍:同上。
class Solution:
def strongPasswordCheckerII(self, password: str) -> bool:
spec = "!@#$%^&*()-+"
f = [False for _ in range(4)]
for i, c in enumerate(password):
f[0] |= c.islower()
f[1] |= c.isupper()
f[2] |= c.isdigit()
f[3] |= spec.find(c) != -1
if i != 0 and password[i - 1] == c:
return False
return len(password) >= 8 and f[0] and f[1] and f[2] and f[3]