#include <iostream> using namespace std; int daytable[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} }; int main(){ int year,month,day; while(cin>>year && cin>>month && cin>>day){ int leap; leap=((year%4==0 &&...