freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-python/69d03e549613fbdbe21d11e0.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
69d03e549613fbdbe21d11e0	Challenge 271: Medication Reminder	29	challenge-271

--description--

Given an array of medications and a string representing the current time, return the next medication you need to take and how long until you need to take it.

• Each medication is in the format [name, lastTaken], where name is the name of the medication and lastTaken is the time it was last taken.
• All given times will be in "HH:MM" (24-hour) format.

Use the following medication schedule:

Name	Schedule
Deployxitrin	08:00, 16:00
Debuggamanizole	07:00, 13:00, 21:00
Mergeflictamine	every 4 hours

Return a string in the format "{name} in Hh Mm". For example, "Debuggamanizole in 2h 0m" or "Deployxitrin in 1h 5m".

--hints--

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "10:00"]], "11:00") should return "Debuggamanizole in 2h 0m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "10:00"]], "11:00"), "Debuggamanizole in 2h 0m")`)
}})

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "13:00"], ["Mergeflictamine", "14:00"]], "14:55") should return "Deployxitrin in 1h 5m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "13:00"], ["Mergeflictamine", "14:00"]], "14:55"), "Deployxitrin in 1h 5m")`)
}})

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "13:00"], ["Mergeflictamine", "14:00"]], "17:15") should return "Mergeflictamine in 0h 45m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "13:00"], ["Mergeflictamine", "14:00"]], "17:15"), "Mergeflictamine in 0h 45m")`)
}})

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "09:00"]], "12:59") should return "Debuggamanizole in 0h 1m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "09:00"]], "12:59"), "Debuggamanizole in 0h 1m")`)
}})

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "21:00"], ["Mergeflictamine", "03:00"]], "06:55") should return "Debuggamanizole in 0h 5m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "21:00"], ["Mergeflictamine", "03:00"]], "06:55"), "Debuggamanizole in 0h 5m")`)
}})

medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "07:30"]], "08:00") should return "Mergeflictamine in 3h 30m".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(medication_reminder([["Deployxitrin", "08:00"], ["Debuggamanizole", "07:00"], ["Mergeflictamine", "07:30"]], "08:00"), "Mergeflictamine in 3h 30m")`)
}})

--seed--

--seed-contents--

def medication_reminder(medications, current_time):

    return medications

--solutions--

def medication_reminder(medications, current_time):
    schedule = {
        'Deployxitrin': {'type': 'fixed', 'times': ['08:00', '16:00']},
        'Debuggamanizole': {'type': 'fixed', 'times': ['07:00', '13:00', '21:00']},
        'Mergeflictamine': {'type': 'interval', 'hours': 4},
    }

    def to_minutes(t):
        h, m = map(int, t.split(':'))
        return h * 60 + m

    current = to_minutes(current_time)
    earliest = float('inf')
    next_med = ''

    for name, last_taken in medications:
        med = schedule[name]
        if med['type'] == 'fixed':
            future_times = [to_minutes(t) for t in med['times'] if to_minutes(t) > current]
            if not future_times:
                continue
            next_due = min(future_times)
        else:
            next_due = to_minutes(last_taken) + med['hours'] * 60

        diff = next_due - current
        if 0 < diff < earliest:
            earliest = diff
            next_med = name

    h = earliest // 60
    m = earliest % 60
    return f"{next_med} in {h}h {m}m"