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#include <iostream>
char f1(){
return 'a';
}
int f2(){
return 2;
}
float f3(){
return 3.5;
}
using namespace std;
int main()
{
cout<<"Hello World";
auto a = f1();
cout<<"\n"<<a;
a= f2();
cout<<"\n"<<a;
a = f3();
cout<<"\n"<<a;
cout<<"\n"<<sizeof(a);
cout<<"\n"<<sizeof(float);
return 0;
}
