#include <iostream>
using namespace std;
int main() {
int A[3] = { 10, 20, 30 };
int B[3] = { 100, 200, 300 };
cout << A << endl;
cout << B << endl;
cout << &A << endl;
cout << &B << endl;
int* ptr = A;
cout << ptr << endl;
cout << &ptr << endl;
// A = B;
return 0;
}
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