Run id: 3604

Main.cc: In function 'void fun(int, int, int)':
Main.cc:32:58: error: 'reverse' was not declared in this scope
             if(p3==2) reverse(temp_s.begin(),temp_s.end());
                                                          ^
Main.cc:8:9: warning: unused variable 'len_s' [-Wunused-variable]
     int len_s=s.size();
         ^