C语言问题

#include#define N 100int leap_year( int year ){ return ( (year%4==0 && year%100!=0) || year%400==0 ) ? 1 : 0;}int year_days(int year){ return leap_year( year ) ? 366 : 365;}int days( int year, int month, int day ){ int months[13] = {0,31,28,31,30,31,30