FIT Zadaca 2 Zadatak 4

#include<iostream>
using namespace std;
void main ()
{
    int d,m,g;
    cout<<"Unesite dan, zatim mjesec a zatim godinu:\n";
    cin>>d>>m>>g;
    if (m==1||m==3||m==5||m==7||m==8||m==10||m==12)
    {
        if (d<31)
            d=d+1;
        else if (m<12)
        {
            m=m+1;
            d=1;
        }
        else
        {
            g=g+1;
            m=1;
            d=1;
        }
    }
    else if (m==2)
    {
        if (d<28)
            d=d+1;
        else if(g%4==0)
        {
            d+=1;
        }
        else
        {
            m=m+1;
            d=1;
        }
    }
    else if (m==4||m==6||m==9||m==11)
    {
        if (d<30)
            d=d+1;
        else
        {
            m=m+1;
            d=1;
        }
    }
    else
        cout<<"Greska";
    cout<<d<<"."<<m<<"."<<g;
    system("pause>0");
}