/in/foo.cc: In function 'int main()':
/in/foo.cc:5:74: error: operands to '?:' have different types 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'char'
    5 |     std::cin>>t;for(int i=1;i<=t;i++){std::cin>>p[i];std::cout<<(p[i]>20)?std::to_string(p[i]):(p[i]>10)?'L':'R';}
      |                                                      ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~