include"stdio.h"define YES 1 define NO 0 int isleap(int year){ int leap=NO;if(year%4==0 && year%100!=0 || year%400==0)leap = YES;return leap;} int week_of_firstday(int year){ int n;n=(year+(year-1)/4-(year-1)/100+(year-1)/400)%7;return n;} int mai...
#include"stdio.h" #define YES 1 #define NO 0 int isleap(int year) { int leap=NO; if(year...