Compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:25:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecini[start].size();++i) ^ user.cpp: In function ‘void Dijkstra(int)’: user.cpp:92:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecini[start].size();++i) ^ user.cpp: In function ‘void BellmanFord(int)’: user.cpp:119:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecini[start].size();++i) ^