View Compilation Error

0_0_32803425_18069.cpp: In function 'int main()':
0_0_32803425_18069.cpp:12:32: error: too many arguments to function 'int puts(const char*)'
         puts("Case #%d: ",cnt++);
                                ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cstdio:42:0,
                 from 0_0_32803425_18069.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:504:15: note: declared here
   int __cdecl puts(const char *_Str);
               ^