i am a newbi here and i am trying to learn C++. i have written a program to calc the simple interest and amount of a given data.

i am using visual C++ express edition and it returns unexpected results though it compiles. please help me understand y.

Code:
// calculating the simple interest for the data from he user
//please help me solve this

#include “stdafx.h” //since i am using visual C++
#include //well, iostream is necessary

float si(float a, float b, float c) //declaring that the data could be in decimals
{
return a*b*c/100; //the formula
}

int main() //main
{
using namespace std;

cout<<"principal"<>p; //taking the entered value as p

cout<<"time"<>t;

cout<<"rate"<>r;

cout << "interest="<< //printing the interest
cout << si(p,t,r) << endl; //calling the function

cout << "amount="<< //amount
cout << si(p,t,r)+p; //printing the amount
return 0;
}

this is what it returns when i run it

for principal=1
time=1
rate=1
it shows
interest=10572ACC0.01
amount=10572ACC1.01

please help me out.
thank you.
a fellow programmer.

int doubleVal(x);

int main()
{
	int nCosto	 = 38;
	int ItemsPor     = 34;
	int x;
	cout << "Give me a number ";
	cin >> x;

	doubleVal(x);

	cout << doubleVal(x) << endl;

        return 0;

}

int doubleVal(int x)
{
	return x * 2;
}

Or, it doesn’t matter if it’s at the bottom (since there’s a “Find” dialog box to look for it easily):

int doubleVal(int x)
{
	return x * 2;
}

int main()
{
	int nCosto	 = 38;
	int ItemsPor     = 34;
	int x;
	cout << "Give me a number ";
	cin >> x;

	doubleVal(x);

	cout << doubleVal(x) << endl;

        return 0;

}

cout << "Hello world!";
cout << "Hello world!" << endl;

I love these tutorials by the way. Thank you!