# Random number generator help

Discussion in 'C++' started by kjt1991, Oct 30, 2010.

1. ### kjt1991New Member

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Hey I am currently trying to write a program that has the user enter a value and then this becomes the max value for the generator. So if the user enters 10 the generator picks a number between 1 and 10. The next step is the user has to guess the value the generator picks. My problem lies in every time I use the number 10 as the maximum value the generator always picks the number 8. I need help trying to figure out how to make the maximum value 10 and then have the generator pick different values every run through. The number 8 the first run through, the number 2 through the 2nd run through and the number 6 on the first run through. These previous numbers are made up and the program doesn't have to run any of these previous picked numbers just in case I wasn't clear early. Any help would be appreciated. Thank you.
Code:
```#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
using namespace std;

int main ()
{
int x,guess;
cout << "Enter a maximum value" <<endl;
cin >> x;
cout << "Your number is between 0 and "<< x << endl;
x = rand()%(x + 1);
srand(time(NULL));

cout << "Enter your guess" <<endl;
cin >> guess;
while ( guess != x)
{

cin >> guess;

if (guess > x)
{
cout << "Guess lower" <<endl;
}

else if ( guess < x )
{
cout << "Guess higher" <<endl;
}
else
{
cout << "Congratulations you guessed the correct value" << endl;
}
}

system("PAUSE");
return 0;
}
```

2. ### virxenNew Member

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reverse this 2 lines
from
to
Code:
```    srand(time(NULL));
x = rand()%x + 1;```

Last edited: Oct 30, 2010
shabbir likes this.

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