Compilare: user.cpp: In function ‘void Citire()’: user.cpp:27:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x, y, cost; ^ user.cpp: In function ‘void Djikstra()’: user.cpp:56:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<L[k].size(); j++) ^ user.cpp:42:15: warning: variable ‘cost’ set but not used [-Wunused-but-set-variable] int i, k, cost, costt; ^