I am trying to make a calculator, but it is being weird for no apparent reason.

Question

Whatever I do, the answers are nothing like they are supposed to be. If I enter this into the "seems like this program requires input" box,
num1= 10;
num2 = 10;

It says this:
Added:
-2
Subtracted:
2
Divided:
0
Added:
0
Why is it doing this?
And if I just enter 10, then it does this:
Multiplied:
-20
Divided:
-5
Added:
8
Subtracted:
12

Here is the code:
/*
This is my C++ calculator
Here are the abilites and how to use them:
Addition:
Type them in like this:
X+Y
So if I wanted to add 10 and 6, I would type it in like this:
10+6
Then the program would output 16
For subtraction, replace the + with a -.

For multiplication, enter the same, but instead of a +, use a *.
For 10 times 6, I would enter this:
10
6
That would output 60.
For division, replace the * with a /.

Now for some slightly more complicated stuff:

Modulus: AKA the % sign
Type in your numbers like so:
X % Y, no need for spaces, but they are OK.

Square root:
Type in this first:
sqrt()
Then, inside the (), put in your number.
sqrt(25)
Outputs 5
You can also put in an entire exression if you want to.
sqrt(5*5*5*5)
Outputs 25

Then trigonometry:
cos(numbers)
sin(numbers)
tan(numbers)

*/
#include <iostream>
#include <cmath>
using namespace std;

int main() {

int num1;
int num2;
int mul;
int divi;
int add;
int sub;

cin >> num1 >> num2;

mul=num1*num2;

divi=num1/num2;

add=num1+num2;

sub=num1-num2;
cout << "Multiplied: \n" << mul << endl;
cout << "Divided: \n" << divi << endl;
cout << "Added: \n" << add << endl;
cout << "Subtracted: \n" << sub << endl;

return 0;
}
Link to code:
https://code.sololearn.com/c8Ly51qF2rz3/#cpp

Answer 1

Lol dude, you have to enter the input for the program to use, not actual code.
Your program expects 2 inputs ( cin >> num1 >> num2; )

So you have to enter 2 numbers. In this case you can seperate them by spaces or by newlines.

Try to enter 10 5 for example.

If you enter only 1 number it only writes to the num1 and num2 gets garbage.

Answer 2

It is easier for you to get help, if you put code into playground (even if it doesn't run here) followed by linking it to your post.

Answer 3

you should enter: 10 10 to the box. Are you actually putting num1 etc. in there?

Answer 4

It runs fine for me with good inputs.

Answer 5

Lol I was entering real code, and such like: "10*10" and I couldn't figure out how to input correctly. Thanks all!

Answer 6

You could do the real math formulas, but would have to change the input method.