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Tom
66 lines
1.4 KiB
Markdown
66 lines
1.4 KiB
Markdown
---
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id: 69f35a5bb823ed620fcb7cbb
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title: "Challenge 282: Sleep Debt"
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challengeType: 28
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dashedName: challenge-282
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---
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# --description--
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Given an array of hours slept each night leading up to today, and a target number of hours per night, return how many hours of sleep you need tonight to eliminate your sleep debt.
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- Include tonight's hours in the total time needed to catch up.
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- If you've slept enough to cover tonight's target or more, return `0`.
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# --hints--
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`sleepDebt([6, 6, 6, 6, 6, 6], 8)` should return `20`.
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```js
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assert.equal(sleepDebt([6, 6, 6, 6, 6, 6], 8), 20);
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```
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`sleepDebt([6, 7, 8, 4, 8, 6], 7)` should return `10`.
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```js
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assert.equal(sleepDebt([6, 7, 8, 4, 8, 6], 7), 10);
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```
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`sleepDebt([10, 10, 9, 10, 9, 11], 9)` should return `4`.
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```js
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assert.equal(sleepDebt([10, 10, 9, 10, 9, 11], 9), 4);
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```
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`sleepDebt([8, 7, 6, 7, 6, 8], 6)` should return `0`.
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```js
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assert.equal(sleepDebt([8, 7, 6, 7, 6, 8], 6), 0);
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```
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`sleepDebt([8, 9, 10, 9, 10, 7], 7)` should return `0`.
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```js
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assert.equal(sleepDebt([8, 9, 10, 9, 10, 7], 7), 0);
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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 sleepDebt(hoursSlept, targetHours) {
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return hoursSlept;
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}
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```
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# --solutions--
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```js
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function sleepDebt(hoursSlept, targetHours) {
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const debt = (hoursSlept.length + 1) * targetHours - hoursSlept.reduce((sum, h) => sum + h, 0);
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return Math.max(0, debt);
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}
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```
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