View Compilation Error

0_0_36320948_2144.cpp: In function 'int main()':
0_0_36320948_2144.cpp:25:18: error: 'std::map<std::basic_string<char>, int>::iterator' has no member named 'second'
      if(max<iter.second)
                  ^
0_0_36320948_2144.cpp:27:20: error: 'std::map<std::basic_string<char>, int>::iterator' has no member named 'second'
         max = iter.second;
                    ^
0_0_36320948_2144.cpp:30:13: error: 'std::map<std::basic_string<char>, int>::iterator' has no member named 'first'
  cout<<iter.first;
             ^