Compilare: user.cpp: In function ‘int go(int&, int)’: user.cpp:103:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void gendiv(int, int, int)’: user.cpp:106:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,t,o,tprim; ^ user.cpp: In member function ‘char InParser::read_ch()’: user.cpp:27:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^