Eroare de compilare: user.cpp: In function ‘void bejar(int)’: user.cpp:24:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<x[act].size();++i) ^ user.cpp:31:17: error: ‘er’ was not declared in this scope er = max(er,d[asd]); ^ user.cpp: In function ‘int main()’: user.cpp:47:17: error: ‘a’ was not declared in this scope be>>a>>b; ^ user.cpp:47:20: error: ‘b’ was not declared in this scope be>>a>>b; ^ user.cpp:52:24: error: ‘er’ was not declared in this scope for(i=0;(1<<i)<er;++i); ^