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103 lines
2.4 KiB
Markdown
103 lines
2.4 KiB
Markdown
---
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id: 697a49e6ff50d756c9b6935e
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title: "Challenge 181: 2026 Winter Games Day 2: Snowboarding"
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challengeType: 29
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dashedName: challenge-181
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---
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# --description--
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Given a snowboarder's starting stance and a rotation in degrees, determine their landing stance.
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- A snowboarder's stance is either `"Regular"` or `"Goofy"`.
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- Trick rotations are multiples of 90 degrees. Positive indicates clockwise rotation, and negative indicate counter-clockwise rotation.
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- The landing stance flips every 180 degrees of rotation.
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For example, given `"Regular"` and `90`, return `"Regular"`. Given `"Regular"` and `180` degrees, return `"Goofy"`.
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# --hints--
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`get_landing_stance("Regular", 90)` should return `"Regular"`.
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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_landing_stance("Regular", 90), "Regular")`)
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}})
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```
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`get_landing_stance("Regular", 180)` should return `"Goofy"`.
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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_landing_stance("Regular", 180), "Goofy")`)
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}})
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```
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`get_landing_stance("Goofy", -270)` should return `"Regular"`.
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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_landing_stance("Goofy", -270), "Regular")`)
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}})
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```
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`get_landing_stance("Regular", 2340)` should return `"Goofy"`.
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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_landing_stance("Regular", 2340), "Goofy")`)
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}})
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```
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`get_landing_stance("Goofy", 2160)` should return `"Goofy"`.
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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_landing_stance("Goofy", 2160), "Goofy")`)
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}})
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```
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`get_landing_stance("Goofy", -540)` should return `"Regular"`.
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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_landing_stance("Goofy", -540), "Regular")`)
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}})
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```
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`get_landing_stance("Goofy", 90)` should return `"Goofy"`.
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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_landing_stance("Goofy", 90), "Goofy")`)
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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_landing_stance(start_stance, rotation):
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return start_stance
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```
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# --solutions--
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```py
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def get_landing_stance(start_stance, rotation):
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flips = abs(rotation) // 180
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if flips % 2 == 0:
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return start_stance
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else:
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return "Goofy" if start_stance == "Regular" else "Regular"
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```
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