Compilare: user.cpp: In function ‘int comfig(int)’: user.cpp:77:12: warning: unused variable ‘x2’ [-Wunused-variable] int x1,x2,x3,x4; ^ user.cpp:77:15: warning: unused variable ‘x3’ [-Wunused-variable] int x1,x2,x3,x4; ^ user.cpp:77:18: warning: unused variable ‘x4’ [-Wunused-variable] int x1,x2,x3,x4; ^ user.cpp:87:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void solve()’: user.cpp:94:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < poz[i].size(); ++j) ^