Compilare: main.cpp: In function 'long long int solve(bool)': main.cpp:63:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < under.size(); i++) { ~~^~~~~~~~~~~~~~ main.cpp:64:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pointer < upper.size() && det3(under[i], origin, upper[pointer]) < 0 ) ~~~~~~~~^~~~~~~~~~~~~~