What happens to uninitialized variables? C++

Question

int main()
{    
    int a;
    cout << a;
    return 0;
}

I am wondering why the value 0 is being output. I thought if a variable is uniniti

Answer 1

I think you are not convinced with the answers/comments given, may be you can try the below code:

#include 
using namespace std;

int main(){

 int a,b,c,d,e,f,g,h,i,j;

 cout<