Problem Brief
Days Between
FULLTIMEOA
Write a function daysBetween that returns the number of days between two calendar dates.
Each date is represented by three integers: year, month, and day. The first date is guaranteed to occur before the second date.
Do not use system-provided date objects or built-in date-difference helpers. Compute the answer directly from the date components.
Function Description
Complete the function daysBetween in the editor below.
daysBetween has the following parameters:
int year1: the year of the first dateint month1: the month of the first dateint day1: the day of the first dateint year2: the year of the second dateint month2: the month of the second dateint day2: the day of the second date
Returns
int: the number of days between the two dates
1Example 1
Input
year1 = 2010, month1 = 5, day1 = 1, year2 = 2011, month2 = 5, day2 = 1
Output
365
Explanation
From
2010-05-01 to 2011-05-01 there are 365 days.2Example 2
Input
year1 = 2020, month1 = 2, day1 = 27, year2 = 2020, month2 = 3, day2 = 1
Output
3
Explanation
The interval crosses leap day in
2020: Feb 27 -> Feb 28 -> Feb 29 -> Mar 1, so the difference is 3 days.3Example 3
Input
year1 = 2019, month1 = 12, day1 = 31, year2 = 2020, month2 = 1, day2 = 1
Output
1
Explanation
The dates are consecutive calendar days across a year boundary.
Constraints
Limits and guarantees your solution can rely on.
1 ≤ month1, month2 ≤ 12- Both input dates are valid calendar dates.
- The first date always occurs before the second date.
- Do not use built-in date libraries or system date objects.