Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:34:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i < A[ nod ].size() ; ++i ) ^ user.cpp: In function ‘void rezolva()’: user.cpp:41:10: warning: unused variable ‘xx’ [-Wunused-variable] int i, xx; ^ user.cpp: In function ‘int gasit(int, int)’: user.cpp:79:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i < A[ X ].size() && ok == 0 ; ++i ) ^ user.cpp: In function ‘void afiseaza()’: user.cpp:90:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( j = 0 ; j < A[ i ].size() ; j++ ) ^