rand

#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

void zad_1();
void zad_2();
void zad_3();
void zad_4();
void zad_5();

int main()
{
    srand(time(NULL));
    cout<<"Zadanie 1"<<endl;
    zad_1();
    cout<<endl;
    cout<<"Zadanie 2"<<endl;
    zad_2();
    cout<<endl;
    cout<<"Zadanie 3"<<endl;
    zad_3();
    cout<<endl;
    cout<<"Zadanie 4"<<endl;
    zad_4();
    cout<<endl;
    cout<<"Zadanie 5"<<endl;
    zad_5();
    cout<<endl;
    return 0;
}

void zad_1(){
    for(int i=0; i<3; i++) cout<<rand()%10<<endl;
}

void zad_2(){
    for(int i=0; i<5; i++) cout<<30+rand()%(11)<<endl;
}

void zad_3(){
    int sum = 0;
    for(int i=0; i<100; i++) sum += 10+rand()%(11);
    cout<<sum<<endl;
}

void zad_4(){
    for(int i=0; i<10; i++) cout<<rand()%2<<endl;
    //zdaje sie ze sa losowe (0 [reszka] oraz 1 [orzel])
}

void zad_5(){
    int ran;
    do{
        ran = -1000 + rand()%2001;
        cout<<ran<<endl;
    }while(!((ran >= 100) && (ran <= 200)));
}