Compilare: main.cpp: In function 'int main()': main.cpp:79:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int i=1;i<ans.size()-1;i++) | ~^~~~~~~~~~~~~ main.cpp:84:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for(int i=0;i<ans.size();i++) | ~^~~~~~~~~~~