View Compilation Error

0_0_38563666_3697.cpp: In function 'int main()':
0_0_38563666_3697.cpp:48:14: error: too few arguments to function 'int scanf(const char*, ...)'
  while(scanf()!=EOF)
              ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/locale.h:12:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/clocale:42,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:40,
                 from 0_0_38563666_3697.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:386:15: note: declared here
   int __cdecl scanf(const char * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
               ^