Compilare: user.cpp: In function ‘void BellmanFord()’: user.cpp:39:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k=0;k<Muchie[j].size();k++) { ^ user.cpp: In function ‘bool Dijkstra()’: user.cpp:84:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<Muchie[i].size();j++) ^ user.cpp:104:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<Muchie[nod].size();i++) { ^