Compilare: user.cpp: In function ‘int main()’: user.cpp:64:29: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] ifbuffer fin( "moft.in" ); ^ user.cpp:100:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( k[j] - 1 < m.size() ) { ^ user.cpp:108:36: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf( fout, "%d\n", ans ); ^ user.cpp: In member function ‘void ifbuffer::refill()’: user.cpp:17:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread( text, 1, size, file ); ^