Password is a very common approach to multisystem authorization. Passwords can be made up of a combination of letters, numbers, and special characters.
Anyone who has used a computer knows how to use a password, which is the most commonly used authentication method. Password-based authentication is the most simple for adversaries to exploit. Passwords are frequently reused, and guessable passwords are created using dictionary words and publicly available personal information. Two-factor authentication (2FA) is a security system that requires two distinct forms of identification to gain access to something. The first factor is usually a password, and the second is usually a text message with a code sent to our smartphone, or biometrics such as your fingerprint, face, or retina.
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Answer:
Answer is in attached image!
Explanation:
Without knowing the language, it's pretty imposible to write it. Once you start thinking recursively, it's not a difficult problem.
While you're recursing, pass the string without the first character.
The base case would be a null string which would return 0.
The unwind would just add one and return that.
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C is a language used to write complex programs.
