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Question #334 Difficulty: 2

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

    #include <iostream>

int f()
{
    std::cout << 1;
}

int main()
{
    f();
    std::cout << 2;
}

Hint:

f() is missing a return statement, but this is not a compilation error.

Answer:

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