Compilare: user.cpp: In function ‘void rotatie()’: user.cpp:51:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l.size() && i<sol.size(); ++i) ^ user.cpp:51:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l.size() && i<sol.size(); ++i) ^ user.cpp: In function ‘void compress(int, int)’: user.cpp:68:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[b].size(); ++i) ^ user.cpp: In function ‘void df(int)’: user.cpp:81:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[nod].size(); ++i) ^ user.cpp:98:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[nod].size(); ++i) ^ user.cpp:101:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] w[s[fiu]]=0; ^ user.cpp:111:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[nod].size(); ++i) ^