freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-python/69f35a5bb823ed620fcb7cbb.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
69f35a5bb823ed620fcb7cbb	Challenge 282: Sleep Debt	29	challenge-282

--description--

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.

• Include tonight's hours in the total time needed to catch up.
• If you've slept enough to cover tonight's target or more, return 0.

--hints--

sleep_debt([6, 6, 6, 6, 6, 6], 8) should return 20.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(sleep_debt([6, 6, 6, 6, 6, 6], 8), 20)`)
}})

sleep_debt([6, 7, 8, 4, 8, 6], 7) should return 10.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(sleep_debt([6, 7, 8, 4, 8, 6], 7), 10)`)
}})

sleep_debt([10, 10, 9, 10, 9, 11], 9) should return 4.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(sleep_debt([10, 10, 9, 10, 9, 11], 9), 4)`)
}})

sleep_debt([8, 7, 6, 7, 6, 8], 6) should return 0.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(sleep_debt([8, 7, 6, 7, 6, 8], 6), 0)`)
}})

sleep_debt([8, 9, 10, 9, 10, 7], 7) should return 0.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(sleep_debt([8, 9, 10, 9, 10, 7], 7), 0)`)
}})

--seed--

--seed-contents--

def sleep_debt(hours_slept, target_hours):

    return hours_slept

--solutions--

def sleep_debt(hours_slept, target_hours):
    debt = (len(hours_slept) + 1) * target_hours - sum(hours_slept)
    return max(0, debt)