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81 lines
1.4 KiB
Markdown
81 lines
1.4 KiB
Markdown
---
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id: 69162d64f96574d9bb629efe
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title: "Challenge 113: Miles to Kilometers"
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challengeType: 29
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dashedName: challenge-113
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---
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# --description--
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Given a distance in miles as a number, return the equivalent distance in kilometers.
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- The input will always be a non-negative number.
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- 1 mile equals 1.60934 kilometers.
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- Round the result to two decimal places.
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- Remove unnecessary trailing zeros from the rounded result.
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# --hints--
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`convert_to_km(1)` should return `1.61`.
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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(convert_to_km(1), 1.61)`)
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}})
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```
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`convert_to_km(21)` should return `33.8`.
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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(convert_to_km(21), 33.8)`)
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}})
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```
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`convert_to_km(3.5)` should return `5.63`.
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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(convert_to_km(3.5), 5.63)`)
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}})
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```
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`convert_to_km(0)` should return `0`.
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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(convert_to_km(0), 0)`)
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}})
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```
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`convert_to_km(0.621371)` should return `1`.
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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(convert_to_km(0.621371), 1)`)
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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 convert_to_km(miles):
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return miles
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```
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# --solutions--
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```py
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def convert_to_km(miles):
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km = miles * 1.60934
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return round(km, 2)
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```
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