Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:42:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i < A[ nod ].size() ; ++i ) ^ user.cpp: In function ‘void afiseaza()’: user.cpp:85:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( j = 0 ; j < A[ i ].size() ; j++ ) ^ user.cpp: In function ‘void citire()’: user.cpp:120:13: warning: unused variable ‘Y’ [-Wunused-variable] int i, j, Y, X; ^ user.cpp:120:16: warning: unused variable ‘X’ [-Wunused-variable] int i, j, Y, X; ^