Compilare: user.cpp: In function ‘bool find(std::vector<int>, std::vector<bool>&, int)’: user.cpp:43:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos + step < T.size() && T[pos + step] <= X ) ^ user.cpp:55:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(pos >= 0 && T[pos] == X) ^ user.cpp:46:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(T[pos] == X) ^