Compilare: user.cpp: In function ‘void precalcD()’: user.cpp:102:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[Min].size(); i++) ^ user.cpp: In function ‘void Unite(int, int)’: user.cpp:123:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < V[y].size(); i++) ^ user.cpp: In function ‘void Solve()’: user.cpp:141:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘bool check(int, int)’: user.cpp:156:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < F[node].size(); i++) ^