Decimals in C++?

[The1corrupted]

Alright, I have issues with the following code and would like some insight as to why certain aspects do not work. Right now, I cannot get the program to float an appropriate decimal in order to come up with a percentage. It's only giving me 100% or 0%.

// Left or Right
#include <iostream.h>
#include <lvp\random.h>
 
//Declare variables
 
int Guess;
int RL;
int x;
int c;
int v;
int r;
int w;
float p;
 
//Make random numbers (produce a 1 or a 2)
 
//-----------------------------------
void GuessStuff() 
{ //Start GuessStuff
    for (int z=1; z<=5; z++)
    { //Start for
    cout<<c+1<<". Guess left or right (1 = Right, 2 = Left): ";
    cin>>Guess;
    cout<<endl;
    RL=random(2)+1;
    cout<<RL<<endl;
    if (Guess==RL) 
    { //Start if
        cout<<"    You got it right!  The answer was "<<RL<<endl<<endl;
        r++;
    } //End if
    else 
    { //Start else
        cout<<"    You got it wrong!  The answer was "<<RL<<endl<<endl;
        w++;
    } //End else
    c++;
    } //end for
} //End GuessStuff
 
//----------------------------------
 
int main () { //Start Main
 
    do
    { //Start do
        randomize();
        cout<<"Main Menu"<<endl<<"1. Play the game"<<endl<<"2. Quit."<<endl<<"Answer? ";
        cin>>x;
        cout<<endl;
 
        if (x==1)
        { //Start if
        GuessStuff();
        } //End if
        else 
        { //Start else
            p=(r/c)*100;
    //Problem Area--->>   cout<<"Good bye"<<endl<<"You got "<<r<<" right and "<<w<<" wrong."<<endl<<"You got "<<p<<"%"<<endl;
        return (0);
        } //End else
 
    } //End do
    while (c==v); 
    { //Start while
        v=v+5;
        return (main());
    } //End While
    return (0);
} //End Main

[Ganon11]

r and c are both integers, so when you do r/c, the compiler uses integer division, which returns an integer. You need to cast one of these to a float in the division, so that the compiler will use floating point division and return a floating point number. So, instead of

p=(r/c)*100;

use

p=((static_cast<float>(r))/c)*100;

in C++, or

p=(((float)r)/c)*100;

for C.

[The1corrupted]

Aha! Thanks for the help :D We were all noobs at one point, right?

[Ganon11]

Definitely. I was in your exact position about 3 years ago, so don't worry - keep at it, and you can learn quite a lot.