Compilare: main.cpp: In function 'double minn(const std::vector<point>&, int, int)': main.cpp:82:37: warning: unused variable 'd3' [-Wunused-variable] double d1 = INT_MAX, d2 = INT_MAX, d3 = INT_MAX; ^~ main.cpp: In function 'double divide(int, int, const std::vector<point>&)': main.cpp:135:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < LY.size(); i++) { ~~^~~~~~~~~~~ main.cpp:137:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (d4 <= d && j < LY.size()) { ~~^~~~~~~~~~~