Compilare: main.cpp: In function 'int main()': main.cpp:68:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<nume>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0; i < st.size(); i++) | ~~^~~~~~~~~~~ main.cpp:45:12: warning: unused variable 'x' [-Wunused-variable] 45 | double x, y; | ^ main.cpp:45:15: warning: unused variable 'y' [-Wunused-variable] 45 | double x, y; | ^