2018 Ninth Blue Bridge cup [C ++] provincial tournament Group B (unfinished)

first question

Title: The first few days

2000 January 1, is the first day of the year.

Then, in 2000, May 4, the first few days of the year?

Note: You need to submit is an integer, do not fill out any extra content

More efficient use of excel:

The answer is 125;

Note is A2-A1 + 1, A2-A1 is not