226. Mission Timer — Format Seconds

Easy · Math

Game missions display a countdown. Given a number of `seconds`, return a formatted string 'MM:SS' (e.g. 90 → '01:30').

Examples

Example 1
Input: 90
Output: "01:30"
Explanation: 1 minute and 30 seconds
Example 2
Input: 65
Output: "01:05"
Explanation: Seconds padded to 2 digits

Constraints