Package g0401_0500.s0420_strong_password_checker

Class Solution

java.lang.Object

g0401_0500.s0420_strong_password_checker.Solution

public class Solution
extends Object

420 - Strong Password Checker\. Hard A password is considered strong if the below conditions are all met: * It has at least `6` characters and at most `20` characters. * It contains at least **one lowercase** letter, at least **one uppercase** letter, and at least **one digit**. * It does not contain three repeating characters in a row (i.e., `"...aaa..."` is weak, but `"...aa...a..."` is strong, assuming other conditions are met). Given a string `password`, return _the minimum number of steps required to make `password` strong. if `password` is already strong, return `0`._ In one step, you can: * Insert one character to `password`, * Delete one character from `password`, or * Replace one character of `password` with another character. **Example 1:** **Input:** password = "a" **Output:** 5 **Example 2:** **Input:** password = "aA1" **Output:** 3 **Example 3:** **Input:** password = "1337C0d3" **Output:** 0 **Constraints:** * `1 <= password.length <= 50` * `password` consists of letters, digits, dot `'.'` or exclamation mark `'!'`.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	strongPasswordChecker(String s)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

strongPasswordChecker

public int strongPasswordChecker(String s)