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96 lines
2.1 KiB
Markdown
96 lines
2.1 KiB
Markdown
---
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id: 69cfca90e8a0a6d4d6871c4f
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title: "Challenge 265: Deepest Brackets"
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challengeType: 29
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dashedName: challenge-265
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---
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# --description--
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Given a string containing balanced brackets, return the content of the deepest nested brackets.
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- Brackets can be any of the three types: `()`, `[]`, and `{}`.
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- The input will always have a single deepest group.
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For example, given `"(hello (world))"`, return `"world"`.
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# --hints--
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`get_deepest_brackets("(hello (world))")` should return `"world"`.
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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(get_deepest_brackets("(hello (world))"), "world")`)
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}})
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```
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`get_deepest_brackets("[outer [inner] outer]")` should return `"inner"`.
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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(get_deepest_brackets("[outer [inner] outer]"), "inner")`)
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}})
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```
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`get_deepest_brackets("{a{b}c{d{e}f}g}")` should return `"e"`.
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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(get_deepest_brackets("{a{b}c{d{e}f}g}"), "e")`)
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}})
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```
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`get_deepest_brackets("[the {quick (brown [fox] jumped) over (the) lazy} dog]")` should return `"fox"`.
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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(get_deepest_brackets("[the {quick (brown [fox] jumped) over (the) lazy} dog]"), "fox")`)
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}})
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```
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`get_deepest_brackets("f[(r)e{e}C{o[(d){e(C)}a]m}]p")` should return `"C"`.
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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(get_deepest_brackets("f[(r)e{e}C{o[(d){e(C)}a]m}]p"), "C")`)
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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 get_deepest_brackets(s):
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return s
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```
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# --solutions--
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```py
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def get_deepest_brackets(s):
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max_depth = 0
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depth = 0
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content = ''
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start = 0
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for i, ch in enumerate(s):
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if ch in '([{':
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depth += 1
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if depth > max_depth:
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max_depth = depth
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start = i + 1
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elif ch in ')]}':
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if depth == max_depth:
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content = s[start:i]
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depth -= 1
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return content
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```
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