Arrays

Question

please I need more explanation about this code I could not understand it please someone should help me

#include <iostream>
using namespace std;
int billy[]={16,2,77,40,12071};
int n,result=0;
int main() {
for (n=0;n<5;n++)
{
result +=billy[n];
}
cout <<result;
return 0;
}

Answer 1

In short, that code sum all the elements of a global int array <billy> into variable <result>, which also is defined and initialized on the global space.

Not sure what confused you here, so I'd appreciate it if you can come clearer on the problem.

Answer 2

wow thank you @Ipang I just checked it and that's true it's sum all the elements

Answer 3

Code Crasher
As per my understanding, something is said to belong in global scope when their declaration/definition is not inside of a function. Here <billy> array is defined outside main function (the only function we see).

You got it right though, the <n> in the for-loop refers to the index of array elements (a range), to be added into <result> variable.

Curiosity is always welcome, no probs 👌

Answer 4

Code Crasher
Don't know that much about C/C++ myself, but a lot had said/written something around those languages and electronics or robotics. So I guess it makes just the sense to learn, even if it was just the basics.

Keep crashing bruh 😁

Answer 5

No problem buddy 👌
Keep coding and stay safe 👍