Compilare: main.cpp: In function 'int main()': main.cpp:61:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(j=0;j<lit.size();j++) | ~^~~~~~~~~~~ main.cpp:44:19: warning: unused variable 'aux' [-Wunused-variable] 44 | int i, ans=0, aux, cnt=0, j, ans2; | ^~~ main.cpp:44:24: warning: unused variable 'cnt' [-Wunused-variable] 44 | int i, ans=0, aux, cnt=0, j, ans2; | ^~~