include<stdio.h> include<stdbool.h> int daytab[2][13] ={ {0,31,28,31,30,31,30,31,31,30,31,30,31}, {0,31,29,31,30,31,30,31,31,30,31,30,31}}; bool isLeapYear(int year){ return (year%4 == 0&&year%100!=0)||(year%400 == 0);}int main(){ int a,year,month,day,number,days; ...