View Compilation Error

0_0_37838892_17721.cpp:63:13: error: 'begin' function uses 'auto' type specifier without trailing return type
  auto begin(){return p.begin();}
             ^
0_0_37838892_17721.cpp:63:13: note: deduced return type only available with -std=c++1y or -std=gnu++1y
0_0_37838892_17721.cpp:64:11: error: 'end' function uses 'auto' type specifier without trailing return type
  auto end(){return p.end();}
           ^
0_0_37838892_17721.cpp:64:11: note: deduced return type only available with -std=c++1y or -std=gnu++1y