Introduction - If you have any usage issues, please Google them yourself
Define a structure variables (including year, month, day), a program, and asked to enter years day, calculate and output the day the first few days of this year. Note that the definition of the problem structure must enter three integers (and three integers are reasonable, such as when the input only when the month should be between 1 to 12, should not exceed this range) variable, or the output of an integer. Both Enter the date of the first few days of the month. Experimental results invalid.