Hi, I'm new to this C++ stuff. So if anyone can help that would be nice. I have this program to generate a random number and a the user inputs a number from the keyboard to correctly guess the number that the computer randomly chooses. but the numbers are always changing each time, which makes it hard to correctly guess the correct number. So the question is, is it possible to randomly choose a number without it changing each iteration?

#include <iostream>
#include <cstdlib>
#include <cmath>
#include <ctime>
using namespace std;

int main ( )
{
int guess;
char ans;

srand (time (0));
for (int i = 0; i < 100; i++)
{
int random = rand( );
int num = ((random % 100) + 1);



cout << "Guess a number between 1 and 100: ";
cin >> guess;

if (guess > num)
{
cout << "The number is lower. Try Again!!\n\n";
continue;

}
if (guess < num)
{
cout << "The number is higher. Try Again!!\n\n";
continue;


}
else if (guess = num)
{
cout << "You've guessed correctly!\n\n";
break;
}

}



return 0;
}