Compilare: user.cpp: In function ‘void Dijkstra()’: user.cpp:83:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++) ^ user.cpp:64:9: warning: unused variable ‘node’ [-Wunused-variable] int node=City[ind]; ^ user.cpp: In function ‘void Hamilton()’: user.cpp:105:29: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(conf & (1<<i)!=0) ^ user.cpp:108:37: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(conf & (1<<j)!=0) ^