和离口里的meeting room挺像
// booking Start Date// Sonder wants to help guests plan their stay
// by finding check-in and check-out dates that accommodate a desired length of stay.
// Sonder determines availability based on existing bookings,
// serialized as colon-separated pairs of integers.
// The first integer is a check-in date, and the second is a check-out date.
// Each integer represents an offset since Jan 1, 2019.
// E.g. ‘0:1’ represents a booking where the check-in date is Jan 1st 2019,
// and the check-out date is Jan 2nd 2019.
// Directions
// Implement a method, booking_start_date(string bookings, int stay_length, int current_date)
// that will return the first day that can accommodate a booking of length stay_length.
// Examples:
// Input: bookings: ‘0:2 3:5 7:14’, stay_length: 1, current_date: 4
// Output: 5
// Input: bookings: ‘0:3 3:6 7:14’, stay_length: 2, current_date: 4
// Output: 14
// Input: bookings: ‘0:2 5:6 7:14’, stay_length: 1, current_date: 3
// Output: 3
没有拿到onsite，题虽然做出来了