View Compilation Error

0_0_38196800_26822.cpp:8:9: error: conflicting declaration 'std::set<long long unsigned int> s'
 set<ull>s;
         ^
0_0_38196800_26822.cpp:6:6: note: previous declaration as 'char s [100010]'
 char s[N];
      ^
0_0_38196800_26822.cpp: In function 'int main()':
0_0_38196800_26822.cpp:38:6: error: request for member 'clear' in 's', which is of non-class type 'char [100010]'
    s.clear();
      ^
0_0_38196800_26822.cpp:42:11: error: request for member 'count' in 's', which is of non-class type 'char [100010]'
     if(!s.count(x))
           ^
0_0_38196800_26822.cpp:44:8: error: request for member 'isnert' in 's', which is of non-class type 'char [100010]'
      s.isnert(x);
        ^