Compilare: main.cpp: In function 'double bruteDistance(std::vector<point>)': main.cpp:44:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size() - 1; i++) ~~^~~~~~~~~~~~~~ main.cpp:45:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < v.size(); j++) ~~^~~~~~~~~~ main.cpp: In function 'double calculateStrip(std::vector<point>, double)': main.cpp:54:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < strip.size() - 1; i++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:55:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < strip.size() && (abs(strip[j].y - strip[i].y) < mi); j++) ~~^~~~~~~~~~~~~~ main.cpp: In function 'double closest(std::vector<point>)': main.cpp:73:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ~~^~~~~~~~~~