Compilare: main.cpp: In function 'void compute()': main.cpp:46:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(i = 0; i < lower.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:48:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(i = 0; i < upper.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:61:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 0; i < hull.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~