Introduction - If you have any usage issues, please Google them yourself
Topic: enter a certain day, judgment day is the first few days this year?
1 program analysis: in March 5th, for example, it should be the first two months of the add up, and then 5 days that the first few days of this year, special
The situation, and the input is greater than the month considered a leap year plus one day 3.
2 program source code: