Compilare: user.cpp: In function ‘int cautbin(int, int, int)’: user.cpp:20:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v2[m].first <= x && (v2[m+1].first > x || m == v2.size()-1)) ~~^~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) ~~^~~~~~~~~~ user.cpp:48:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < v.size()-1 && v[i+1].first <= s) ~~^~~~~~~~~~~~