Compilare: user.cpp: In function ‘void getSize(int, int)’: user.cpp:18:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int findCentroid(int, int, int)’: user.cpp:31:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp:30:10: warning: variable ‘found’ set but not used [-Wunused-but-set-variable] bool found = 1; ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:62:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp:61:38: warning: variable ‘PMax2’ set but not used [-Wunused-but-set-variable] int Max = 0, Max2 = 0, PMax = 0, PMax2 = 0, PMax3 = 0, Max3 = 0, Max4 = 0; ^ user.cpp: In function ‘void DFS(int, int)’: user.cpp:105:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[centroid].size(); i++) ^