Compilare: main.cpp: In function 'int main()': main.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i = 1 ; i<=d.size()-1; i++) | ~^~~~~~~~~~~~ main.cpp:18:9: warning: unused variable 'st' [-Wunused-variable] 18 | int st=0; | ^~ main.cpp:19:9: warning: unused variable 'dr' [-Wunused-variable] 19 | int dr=n-1; | ^~