C/C++ prime number discriminator

#include <iostream>
using namespace std;
int main() {
    int begin, end;
    int condition = 0;
    cout << "Enter two integers between range 1 to 100" << endl;
    cin >> begin >> end;

    while (begin < 0 || end > 100)
    {
        cout << "Enter two integers again please" << endl;
        cin >> begin >> end;
    }

    for (int i = begin; i <= end; i++) {
        condition = 0;

        if (i == 1)
            condition = 1;

        for (int j = 2; j <= (i / 2); j++) {
            if (i % j == 0) {
                condition = 1;
                break;
            }
        }

        /*
        if (condition)
            cout << "The number " << i << " is not prime number" << endl;
        else
            cout << "The number " << i << " is prime number" << endl;
        */
        if (condition == 0)
            cout << i << ", ";
    }
}