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Question #249 Difficulty: 3

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

    #include <iostream>

int main() {
    int a = '0';
    char const &b = a;
    std::cout << b;
    a++;
    std::cout << b;
}

Hint:

Can a reference of one type refer to an object of another type?

Answer:

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