Eroare de compilare: user.cpp: In function ‘int readint()’: user.cpp:22:13: error: lvalue required as increment operand buff++; ^ user.cpp:29:13: error: lvalue required as increment operand buff++; ^ user.cpp: In function ‘void dfs(int)’: user.cpp:38:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<arb[nod].size(); ++i) ^ user.cpp: In function ‘void removeEdge(int, int)’: user.cpp:55:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<arb[aa].size(); ++i) ^ user.cpp:61:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<arb[bb].size(); ++i) ^