Compilare: main.cpp: In function 'void rotating_calipers()': main.cpp:91:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<point>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (int i = 0; i < stiva.size(); i ++) | ~~^~~~~~~~~~~~~~ main.cpp:111:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<point>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 111 | for (int j = 0; j < stiva.size(); j ++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'long long int cross_prod(point, point, point)': main.cpp:40:1: warning: control reaches end of non-void function [-Wreturn-type] 40 | } | ^