Compilare: main.cpp: In function 'int main()': main.cpp:80:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(i = 0; i < pi.size(); i++){ | ~~^~~~~~~~~~~ main.cpp:90:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<elem>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | while(i < g.size() && !ok){ | ~~^~~~~~~~~~ main.cpp:69:25: warning: unused variable 'pos' [-Wunused-variable] 69 | int n, suma, i, ok, pos, st, dr, mij, need; | ^~~ main.cpp:70:10: warning: unused variable 'aux' [-Wunused-variable] 70 | elem aux; | ^~~