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139 lines
3.0 KiB
Markdown
139 lines
3.0 KiB
Markdown
---
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id: 68b7cadffed0e75a517da677
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title: "Challenge 54: P@ssw0rd Str3ngth!"
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challengeType: 29
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dashedName: challenge-54
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---
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# --description--
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Given a password string, return `"weak"`, `"medium"`, or `"strong"` based on the strength of the password.
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A password is evaluated according to the following rules:
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- It is at least 8 characters long.
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- It contains both uppercase and lowercase letters.
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- It contains at least one number.
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- It contains at least one special character from this set: `!`, `@`, `#`, `$`, `%`, `^`, `&`, or `*`.
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Return `"weak"` if the password meets fewer than two of the rules.
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Return `"medium"` if the password meets 2 or 3 of the rules.
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Return `"strong"` if the password meets all 4 rules.
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# --hints--
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`check_strength("123456")` should return `"weak"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("123456"), "weak")`)
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}})
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```
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`check_strength("pass!!!")` should return `"weak"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("pass!!!"), "weak")`)
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}})
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```
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`check_strength("Qwerty")` should return `"weak"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("Qwerty"), "weak")`)
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}})
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```
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`check_strength("PASSWORD")` should return `"weak"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("PASSWORD"), "weak")`)
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}})
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```
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`check_strength("PASSWORD!")` should return `"medium"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("PASSWORD!"), "medium")`)
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}})
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```
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`check_strength("PassWord%^!")` should return `"medium"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("PassWord%^!"), "medium")`)
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}})
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```
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`check_strength("qwerty12345")` should return `"medium"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("qwerty12345"), "medium")`)
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}})
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```
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`check_strength("S3cur3P@ssw0rd")` should return `"strong"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("S3cur3P@ssw0rd"), "strong")`)
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}})
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```
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`check_strength("C0d3&Fun!")` should return `"strong"`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(check_strength("C0d3&Fun!"), "strong")`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def check_strength(password):
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return password
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```
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# --solutions--
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```py
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import re
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def check_strength(password):
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rules_met = 0
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if len(password) >= 8:
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rules_met += 1
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if re.search(r'[a-z]', password) and re.search(r'[A-Z]', password):
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rules_met += 1
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if re.search(r'\d', password):
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rules_met += 1
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if re.search(r'[!@#$%^&*]', password):
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rules_met += 1
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if rules_met < 2:
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return "weak"
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elif rules_met < 4:
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return "medium"
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else:
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return "strong"
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```
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