LeetCode içerisinde bulunan “Day of the Year” sorusunun açıklaması ve çözümü. Bu soruda size verilen string‘in gösterdiği tarihin yılın kaçıncı günü olduğunu bulmanız isteniyor.

► LeetCode 1154. Day of the Year: https://leetcode.com/problems/day-of-the-year/

► Problem açıklaması: Given a string date representing a Gregorian calendar date formatted as YYYY-MM-DD, return the day number of the year.

Example 1:

Input: date = “2019-01-09”

Output: 9

Explanation: Given date is the 9th day of the year in 2019.

Example 2: Input: date = “2019-02-10” Output: 41

Example 3: Input: date = “2003-03-01” Output: 60

Example 4: Input: date = “2004-03-01” Output: 61

Constraints:

date.length == 10

date[4] == date[7] == ‘-‘, and all other date[i]’s are digits

date represents a calendar date between Jan 1st, 1900 and Dec 31, 2019.