Compilare: user.cpp: In function ‘void Build()’: user.cpp:14:13: warning: unused variable ‘x’ [-Wunused-variable] int i,j,x,cnt; ^ user.cpp:14:15: warning: unused variable ‘cnt’ [-Wunused-variable] int i,j,x,cnt; ^ user.cpp: In function ‘void Solve()’: user.cpp:30:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k = 0; k < biti[stare].size(); k++) ^ user.cpp:26:15: warning: unused variable ‘i’ [-Wunused-variable] int stare,i,j,k; ^