Question: Given the following code, the output is _ _ . int main ( ) { #define x 3 #undef x #ifndef x int x =

Given the following code, the output is __.
int main()
{
#define x 3
#undef x
#ifndef x
int x =5;
#else
int x =4;
#endif
cout << x << endl;
return 0;
}

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