for loop question

[ace55]

hi guys im writing a code to compute a factorial and when i enter the number, it skips a line and the program doesn't do anything. help please

#include <iostream>

using namespace std;

int main()
{
string in;
int factorial,num,count;
cout << "Enter a number:" << endl;
cin >> num;
factorial=1;
while (cin >= 0)
for(count=1;count<num;count++)
{
factorial=factorial*count;
}

cout << endl;
cout << "The factorial of " << num << " is " << factorial;


return 0;
}

[fg109]

while (cin >= 0)

What is this doing here?

[vintho]

replace while loop with while(num>=0)