View Compilation Error

0_0_37858612_10738.cpp: In function 'void solve()':
0_0_37858612_10738.cpp:62:26: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
     if (ttt) putchar("\n");
                          ^
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_37858612_10738.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:503:15: note: initializing argument 1 of 'int putchar(int)'
   int __cdecl putchar(int _Ch);
               ^