rand() help

[Taino]

Hi,

just need a little guidance in the right direction.

What I want to do is generate random statements to congratulate for correct answer. for example.

"Fantastic";
"Excellent";
"Superb";

instead of only the "Congratulations". I have indicated where I need these statements displayed. [See Below]

Any help is appreciated. Thanks

Here is my code:

#include <iostream>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <string>

using namespace std;

// function prototypes

// generateQuestion
// generateOutput


int main()
{
srand(time(0));
int num1 = 1+ rand() %10;
int num2 = 1+ rand() %10;
int product = num1 * num2;
int answer = 0;


cout << " *****Welcome to Multiplication Teacher***** " << " Enter -1 to exit " << endl << endl;



cout <<"How much does " << num1 <<" times " << num2 << " = ";
cin >> answer;

if (answer == -1)

return 0;

else if(answer == product)
{
cout <<"\nCongratulations!!!"<< endl << endl; <--- output random statements!!
return 0;

}

while(answer != product)
{
cout <<"Invaid Entry!!! Please try again: ";
cin >> answer;
if (answer == -1)

return 0;

else if(answer == product)
{
cout <<"\nExcellent!!!"<< endl << endl; <--- output random statements!!
return 0;

}
}

[whitenite1]

@Taino

I would make an array. string Congrats[3] = {"Fantastic","Excellent","Superb"}; Then cout << Congrats[rand() %3]; Of course, make the array larger and the rand to match, if you use more words than three.

[Aramil of Elixia]

or if you don't know how to do an array you could do rand with if statements

[strongdrink]

To use rand you need to initialize a random seed, correct?

#include <time.h>

// Initialize random seed
srand(time(NULL));

[Gaminic]

Not obligatory, but it's often useful. If you don't, you'll get the same result at each runtime (but different results for different rands within the same runtime).

[Aramil of Elixia]

except you should use ctime

[whitenite1]

Well, I see Taino is using ctime, and srand..