Compilare: user.cpp: In function ‘bool bfs()’: user.cpp:24:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v[k].size(); ++i) ^ user.cpp:17:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k,urm,ok=0; ^ user.cpp: In function ‘int dinic()’: user.cpp:44:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<v[D].size(); ++i) ^ user.cpp: In function ‘void curata()’: user.cpp:70:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<v[i].size(); ++j) ^