Minutes to Hours: Time Conversion Helper

Convert minutes into a human-readable 'Xh Ym' format without extra libraries.

arithmetic formatting conditionals strings

Write a function `minutes_to_hours(minutes)` that takes a non-negative integer `minutes` and returns a string representing that duration in hours and minutes using a compact format.

Rules:
- If `minutes` is 0, return `"0m"`.
- If `minutes` is less than 60, return just the minutes followed by `"m"` (e.g., `"45m"`).
- If `minutes` is exactly a multiple of 60 (i.e., hours is ≥1 and minutes part is 0), return just the hours followed by `"h"` (e.g., `"2h"`).
- Otherwise, return `"{hours}h {remaining_minutes}m"` (e.g., `"1h 30m"`).

No rounding—only integer division and modulo are used. The input will always be a non-negative integer.

Constraints

Input is a non-negative integer. The output must be a string exactly as specified. No imports required.

Example

>>> minutes_to_hours(0)
'0m'
>>> minutes_to_hours(45)
'45m'
>>> minutes_to_hours(60)
'1h'
>>> minutes_to_hours(90)
'1h 30m'
>>> minutes_to_hours(150)
'2h 30m'

8 points ~10 min

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Hints

Use `divmod(minutes, 60)` to get hours and remainder.

Check if `hours == 0` or `remaining == 0` for special cases.

Build the string only when both parts are non-zero.

Test Results

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