Zadanie pętle 1

#include <iostream>
using namespace std;
int main()
{
    int i;

    for (i = 1; i <= 100; i++)
    {
        cout << i << endl;
    }
    i = 1;
    while (i <= 100)
    {
        cout << i << endl;
        i++;
    }
    i = 1;
    do
    {
        cout << i << endl;
        i++;
    } while (i <= 100);
}