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multiplication tutorial

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Join Date: Mar 2004

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multiplication tutorial

Mar 21st, 2004

i am in a class and find C++ a challenge. i have an assignment and this is what i have so far. i need help, because i am not too analytical.

#include <cstdlib>
#include <ctime>
#include <iostream>
using std::cout;
using std::endl;
int main()
{
int (a, b);
int (a * b ) = result;
int result;

srand( (unsigned)time( NULL ) ); //set seed to sys time
for (int i = 1; i < 2; i++)
{
cout << 1 + rand() % (10 - 1 + 1)<< endl;
cout << 1 + rand() % (10 - 1 + 1)<< endl;//how do i put side beside each other with X's sign
}
return 0;
}
cin >> c
if (int a * int b) = int c
getline int c//do i need this
cout << "" ", is the correct answer."

if c != (int a * int c)
getline int c
cout << "" ", is not the correct answer."
// loop to try again
//option to exit either way

Use rand() to produce two positive one-digit integers.
The program should then output a question using the numbers.
The student then types the answer. The program checks the student�s answer.
If it is correct, print �Very good!�, and ask another multiplication question.
If the answer is wrong, print �No. Please try again.�, and let the student
try the same question repeatedly until the student gets it right.

should i use calling or pass by value?

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Join Date: Mar 2004

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Phaelax

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Re: multiplication tutorial

Mar 22nd, 2004

my c++ is a little rusty, stupid java!
I don't know what 'calling' is, but you shouldn't need to pass anything.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
DO
int a = some random number
int b = some random number
int product = a*b;
int answer = 0;
bool correct = false;
 
while (!correct)
	cout <<"What is "<<a<<" times "<<b<<"?";
	cin >> answer;
 
	if (answer == product)
		correct = true;
	else
	   correct = false;
 
	if (!correct)
		cout<<"Please try again.";
	else
		cout<<"Good job!";
LOOP
DO
int a = some random number
int b = some random number
int product = a*b;
int answer = 0;
bool correct = false;
 
while (!correct)
	cout <<"What is "<<a<<" times "<<b<<"?";
	cin >> answer;
 
	if (answer == product)
		correct = true;
	else
	   correct = false;
 
	if (!correct)
		cout<<"Please try again.";
	else
		cout<<"Good job!";
LOOP

I think I even mixed BASIC in there as well. You should get the idea though. I think you're trying to make this way more difficult than it needs to be.