Compilare: user.cpp:6:22: warning: integer overflow in expression [-Woverflow] #define inf ((1<<31)-1) ^ user.cpp:11:23: note: in expansion of macro ‘inf’ vector<int> d(LIMIT, -inf); ^ user.cpp: In function ‘void dijkstra()’: user.cpp:6:22: warning: integer overflow in expression [-Woverflow] #define inf ((1<<31)-1) ^ user.cpp:49:28: note: in expansion of macro ‘inf’ for( Q.push(1), d[1] = inf; !Q.empty(); Q.pop() ) ^ user.cpp:52:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < a[nod].size(); ++ i) ^ user.cpp: In function ‘void dfs()’: user.cpp:70:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < G[nod].size(); ++ i) ^