▍Calculate time accurately
space:nowrap;">class date { public: date(){} void set(int p1,int p2,int p3) { year=p1;month=p2;day=p3; } int year,month,day; }; int a[]={31,28,31,30,31,30,31,31,30,31,30,31},*p1,*p2,*p3,i=1,k=0; int main() { int days(date k); dat...