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118 lines
2.6 KiB
Markdown
118 lines
2.6 KiB
Markdown
---
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id: 697a49e6ff50d756c9b69365
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title: "Challenge 188: 2026 Winter Games Day 9: Skeleton"
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challengeType: 29
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dashedName: challenge-188
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---
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# --description--
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Given a string representing the curves on a skeleton track, determine the difficulty of the track.
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- The given string will only consist of the letters:
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- `"L"` for a left turn
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- `"R"` for a right turn
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- `"S"` for a straight segment
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- Each direction change adds 15 points (an `"L"` followed by an `"R"` or vice versa).
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- All other curves add 5 points each (all other `"L"` or `"R"` characters).
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- Straight segments add 0 points.
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The difficulty of the track is based on the total score. Return:
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- `"Easy"` if the total is 0 - 100
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- `"Medium"` if the total is 101-200
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- `"Hard"` if the total is over 200
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# --hints--
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`get_difficulty("SLSLLSRRLSRLRL")` should return `"Easy"`.
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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_difficulty("SLSLLSRRLSRLRL"), "Easy")`)
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}})
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```
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`get_difficulty("LLRSLRLRSLLRLRSLRRLRSRLLS")` should return `"Hard"`.
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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_difficulty("LLRSLRLRSLLRLRSLRRLRSRLLS"), "Hard")`)
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}})
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```
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`get_difficulty("SRRRRLSLLRLRSSRLSRL")` 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(get_difficulty("SRRRRLSLLRLRSSRLSRL"), "Medium")`)
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}})
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```
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`get_difficulty("LSRLRLSRLRLSLRSLRLLRLSRLRLRSL")` should return `"Hard"`.
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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_difficulty("LSRLRLSRLRLSLRSLRLLRLSRLRLRSL"), "Hard")`)
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}})
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```
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`get_difficulty("SLLSSLRLSLSLRSLSSLRL")` 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(get_difficulty("SLLSSLRLSLSLRSLSSLRL"), "Medium")`)
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}})
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```
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`get_difficulty("SRSLSRSLSRRSLSRSRSLSRLSRSR")` should return `"Easy"`.
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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_difficulty("SRSLSRSLSRRSLSRSRSLSRLSRSR"), "Easy")`)
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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_difficulty(track):
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return track
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```
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# --solutions--
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```py
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def get_difficulty(track):
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score = 0
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for i in range(len(track)):
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current = track[i]
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previous = track[i - 1] if i > 0 else None
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if current == 'S':
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score += 0
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elif current == 'L' or current == 'R':
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if previous and previous != 'S' and previous != current:
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score += 15
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else:
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score += 5
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if score <= 100:
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return 'Easy'
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elif score <= 200:
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return 'Medium'
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else:
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return 'Hard'
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```
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