How do I add numbers in C++ again?

March 28, 2022

Seriously, I don’t remember..

Would an integer work??
But I don’t know why its not working…

I’m trying to add integers, like this.

int main() {
   i = 1;
   b = 3;
}
 Signed int addition() {
i + b

}

>Solution :

You can’t use functions and variables, including local variables, parameters, etc before they have been declared first. Though, you can initialize variables at the same time you declare them. For example:

#include <iostream>

int addition(int a, int b);

int main() {
   int i = 1;
   int b = 3;
   int sum = addition(i, b);
   std::cout << sum;
}

int addition(int a, int b) {
    return a + b;
}