View Compilation Error

0_0_39518388_8213.cpp: In function 'int main()':
0_0_39518388_8213.cpp:95:57: error: '__gnu_cxx::__alloc_traits<std::allocator<std::__cxx11::basic_string<char> >, std::__cxx11::basic_string<char> >::value_type' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'second'
   95 |                         if (times[end[i]] && check(b[i].second)) std::cout << i << " ";
      |                                                         ^~~~~~