运行 ID: 6704

Main.cc: In function ‘int main()’:
Main.cc:6:13: error: ‘sizeOf’ was not declared in this scope
     cout << sizeOf(a) << " " << sizeOf(b);
             ^~~~~~
Main.cc:6:13: note: suggested alternative: ‘size_t’
     cout << sizeOf(a) << " " << sizeOf(b);
             ^~~~~~
             size_t