What will be the output of the following program #include stdio.h int foo(); int main() { int i = foo(); } foo() { printf('2 '); return 2; }

What will be the output of the following program

#include stdio.h    int foo();
    int main()
    {
        int i = foo();
    }
    foo()
    {
        printf("2 ");
        return 2;
    }

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What will be the output of the following program #include stdio.h int foo(); int main() { int i = foo(); } foo() { printf("2 "); return 2; }