2409. Count Days Spent Together

Difficulty: Easy

Topics: Mid Level , Math , String , Biweekly Contest 87

Alice and Bob are traveling to Rome for separate business meetings.

You are given 4 strings arriveAlice , leaveAlice , arriveBob , and leaveBob . Alice will be in the city from the dates arriveAlice to leaveAlice ( inclusive ), while Bob will be in the city from the dates arriveBob to leaveBob ( inclusive ). Each will be a 5-character string in the format "MM-DD" , corresponding to the month and day of the date.

Return the total number of days that Alice and Bob are in Rome together .

You can assume that all dates occur in the same calendar year, which is not a leap year. Note that the number of days per month can be represented as: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] .

Example 1:

Input: arriveAlice = "08-15", leaveAlice = "08-18", arriveBob = "08-16", leaveBob = "08-19"

Output: 3

Explanation: Alice will be in Rome from August 15 to August 18.…