Compilare: user.cpp: In function ‘void DFSA(int, int)’: user.cpp:42:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[node].size();i++) ^ user.cpp: In function ‘void DFSB(int, int)’: user.cpp:64:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<B[node].size();i++) ^ user.cpp: In function ‘int countDP(int, int)’: user.cpp:135:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[x].size();i++) ^ user.cpp:136:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<B[y].size();j++) ^ user.cpp:139:17: warning: unused variable ‘x’ [-Wunused-variable] int x=countDP(neighb1,neighb2); ^ user.cpp:142:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=A[x].size();i++) ^ user.cpp:144:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[x].size();i++) ^ user.cpp:145:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<B[y].size();j++) ^