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 (Le., "...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 e. 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 - Output: 5
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 (Le., "...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 e. 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 - Output: 5
Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter19: Probabilistic Dynamic Programming
Section19.4: Further Examples Of Probabilistic Dynamic Programming Formulations
Problem 7P
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