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Question #407 Difficulty: 2

According to the C++23 standard, what is the output of this program? 

    #include <iostream>

void foo(int *arr) {
  std::cout << 1 << std::endl;
}

void foo(int (&arr)[2]) {
  std::cout << 2 << std::endl;
}

int main() {
  int a[2];
  foo(a);
}

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