How to use & operator in C++?

While I was coding, I came to a place where I need to use if and the & operator. For any reason, it did not work and I was frustrated.

The example code is here:

#include <iostream>

using namespace std;

int main()
{
int a=0, b=0,c=0;
if(a && b && c==0)
{
    cout<<"Sound!";
}

return 0;
}

My goal is: if a and b and c is 0, I will print Sound!

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The output that I got did not print anything but the compiler did not raised any errors.

But I thought that the output should be like this:

Sound!

I have tried to replace the && with only 1 & but it did not work. I had the & replaced with and but still did not work.

Does anyone know the answer?

>Solution :

You can write the if statement in several ways. For example

if (a == 0 && b == 0 && c==0)

or

if ( !a && !b && !c )

or

if ( not ( a != 0 || b != 0 || c != 0 ) )