Compilare: user.cpp: In function ‘void precalcD()’: user.cpp:42:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void DFS(int)’: user.cpp:68:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void Solve()’: user.cpp:93:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Sol.size() == K) ^ user.cpp:96:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Sol.size(); i++) ^