#include <iostream>
using namespace std;

// main() is where program execution begins.

int main()
{
    //Zadaca 1
    cout << "Zdravo Ilijana" << endl; // prints Hello World
    cout << "1) Da se odpechatat site broevi od 1 do 15." << endl;
    for(int i=1; i<=15; i++){
        cout << "Sega go pechatam brojot: "<< i << endl;
    }
    cout<<endl;

    //Zadaca2
    cout << "2) Da se odpecatat parnite broevi do 20"<<endl;
    cout<<"Parni se site broevi delivi so 2 i imaat ostatok 0 , naprimer 10%2=0 "<<endl;
    for(int i=1; i<=20; i++){
        if(i%2==0){
            cout<<i<<"/2 = "<<(i/2)<<" ostatokot=0, go pechatam brojot: "<<i<<endl;
        }
    }
    cout<<endl;

    //Zadaca3
    cout << "3) Da se odpecatat neparnite broevi do 10"<<endl;
    cout<<"Neparni se site broevi koi deleni so 2 imaat ostatok > 0 "<<endl;
    for(int i=1; i<=10; i++){
        if(i%2!=0){
            cout<<i<<"/2 = "<<((double)i/2)<<" go pechatam brojot: "<<i<<endl;
        }
    }
    cout<<endl;

    //Zadaca4
    int n=24;//ako sakas drug broj da probas smeni go n
    cout << "4) Da se najdat site deliteli na brojot n"<<endl;
    cout<<"Naprimer brojot "<<n<<endl;


    for(int i=1; i<=n; i++){
        if(n%i==0){
            cout<<n<<"/"<<i<<" = "<<(double)(n/i)<<"ostatok =0  go pechatam brojot: "<<i<<endl;
        }
    }
    cout<<endl;

    //Zadaca 5
    cout<< "5) Da se odpecati aritmeticka sredina na broevite od 1 do 2"<<endl;
    cout<< "Formula za zbir na site broevi od 1 do n e (n*(n+1))/2"<<endl;
    cout<<"Naprimer brojot "<<n<<endl;
    int zbir=0;
    for(int i=1; i<=n; i++){
        zbir=zbir+i;
    }
    double aritmetickaSredina=zbir/n;
    cout<<"Zbirot na site broevi od 1 do "<<n<<" ="<< zbir<<", so aritmeticka sredina: "<<aritmetickaSredina<<endl;
    cout<<endl;

    //Zadaca6
    zbir = 0;
    cout<<"6) Zbir na site parni broevi od 1 do n"<<endl;
    cout<<"Naprimer brojot "<<n<<endl;
    for(int i=1; i<=n; i++){
        if(i%2==0){
            zbir=zbir+i;
        }
    }
    cout<<"Zbirot na site parni broevi od 1 do "<<n<<" = "<< zbir<<endl;
    cout<<endl;

    //Zadaca7
    zbir=0;
    cout<<"7) Zbir na site deliteli na brojot n"<<endl;
    cout<<"Naprimer brojot "<<n<<endl;
    for(int i=1; i<=n; i++){
        if(n%i==0){
            zbir=zbir+i;
        }
    }
    cout<<"Zbirot na site deliteli na brojot  "<<n<<" = "<< zbir<<endl;
    cout<<endl;

    //Zadaca8
    zbir=0;
    cout<<"8) Da se odpecatat site broevi od  n do 1"<<endl;
    cout<<"Naprimer brojot "<<n<<endl;
    for(int i=n; i>0; i--){
        cout << "Sega go pechatam brojot: "<< i << endl;
    }
    cout<<endl;

    //Zadaca9
    cout<<"9) Da se ispisat site trocifreni broevi"<<endl;
    double m=100;
    while(m/100>=0 && m/100<10){
        cout << "Sega go pechatam brojot: "<< m <<endl;
        m++;
    }

    //Zadaca10
    zbir=10;
    cout<<"10) Da se soberat site broevi od delivi so 5 na intervalot [a,b]."<<endl;
    int a=7;
    int b=40;

    for(int i=a; i<=b; i++){
        if(i%5==0){
            zbir=zbir+i;
        }
    }

    cout<<"Zbirot na site broevi na itervalot ["<<a<<","<<b<<"] e ednakov na "<<zbir<<endl;
    cout<<endl;


   system("pause");
   return 0;

}