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98 lines
2.1 KiB
Markdown
98 lines
2.1 KiB
Markdown
---
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id: 697a49e6ff50d756c9b69366
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title: "Challenge 189: 2026 Winter Games Day 10: Alpine Skiing"
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challengeType: 28
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dashedName: challenge-189
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---
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# --description--
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Given a ski hill's vertical drop, horizontal distance, and type, determine the difficulty rating of the hill.
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To determine the rating:
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- Calculate the steepness of the hill by taking the drop divided by the distance.
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- Then, calculate the adjusted steepness based on the hill type:
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- `"Downhill"`: multiply steepness by 1.2
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- `"Slalom"`: multiply steepness by 0.9
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- `"Giant Slalom"`: multiply steepness by 1.0
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Return:
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- `"Green"` if the adjusted steepness is less than or equal to 0.1
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- `"Blue"` if the adjusted steepness is greater than 0.1 and less than or equal to 0.25
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- `"Black"` if the adjusted steepness is greater than 0.25
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# --hints--
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`getHillRating(95, 900, "Slalom")` should return `"Green"`.
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```js
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assert.equal(getHillRating(95, 900, "Slalom"), "Green");
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```
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`getHillRating(620, 2800, "Downhill")` should return `"Black"`.
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```js
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assert.equal(getHillRating(620, 2800, "Downhill"), "Black");
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```
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`getHillRating(420, 1680, "Giant Slalom")` should return `"Blue"`.
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```js
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assert.equal(getHillRating(420, 1680, "Giant Slalom"), "Blue");
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```
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`getHillRating(250, 3000, "Downhill")` should return `"Green"`.
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```js
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assert.equal(getHillRating(250, 3000, "Downhill"), "Green");
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```
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`getHillRating(110, 900, "Slalom")` should return `"Blue"`.
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```js
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assert.equal(getHillRating(110, 900, "Slalom"), "Blue");
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```
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`getHillRating(380, 1500, "Giant Slalom")` should return `"Black"`.
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```js
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assert.equal(getHillRating(380, 1500, "Giant Slalom"), "Black");
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```
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# --seed--
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## --seed-contents--
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```js
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function getHillRating(drop, distance, type) {
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return drop;
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}
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```
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# --solutions--
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```js
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function getHillRating(drop, distance, type) {
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let steepness = drop / distance;
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if (type === "Downhill") {
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steepness *= 1.2;
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} else if (type === "Slalom") {
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steepness *= 0.9;
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} else if (type === "Giant Slalom") {
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steepness *= 1.0;
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}
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if (steepness <= 0.1) {
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return "Green";
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} else if (steepness <= 0.25) {
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return "Blue";
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} else {
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return "Black";
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}
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}
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```
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