Code

#include<iostream>
using namespace std;
bool isLeapYear(int year){
 return ((year % 400 == 0) || (year % 4 == 0 && year % 100 != 0));
}
int main(){
 int a,b,c,x,y;
 cin >> a >> b >> c;
 cin >> x >> y >> c;
 int february = (isLeapYear(c)) ? 29 : 28;
 int s = 0;
 for (int i = b+1; i < y; i++){
  if (i == 2) s += february;
  else if (i == 4 or i == 6 or i == 9 or i == 11) s += 30;
  else s += 31;
 }
 s += x;
 if (b != y){
  if (b == 2) s += february - a;
  else if (b == 4 or b == 6 or b == 9 or b == 11) s += 30 - a;
  else s += 31 - a;
 }
 s = (b == y) ? s : s+1;
 cout << s;
 return 0;
}

var a,b,c,x,y,i,k,sn:longint;

f1,f2:text;

function nt(t:longint):longint;

begin

if t=2 then nt:=28 else if (t=4) or (t=6) or (t=9) or (t=11) then nt:=30 else nt:=31;

end;

begin

assign(f1,'TINHNGAY.inp'); reset(f1); readln(f1,a,b,c);

readln(f1,x,y,c);

assign(f2,'TINHNGAY.out'); rewrite(f2);

sn:=0;

if y=b then sn:=x-a+1;

if y=b+1 then sn:=nt(b)-a+1+x;

if y>b+1 then

begin

k:=nt(b)-a+1;

for i:=b+1 to y -1 do

sn:=Sn+nt(i);

sn:=Sn+k+x;

end;

write(f2,sn);

close(f2);

end.