View Compilation Error

0_0_28529133_20942.cpp:8:6: error: expected initializer before 'nd'
 node nd[5005];
      ^
0_0_28529133_20942.cpp: In function 'int main()':
0_0_28529133_20942.cpp:24:3: error: 'nd' was not declared in this scope
   nd[i].ans = count(i);
   ^
0_0_28529133_20942.cpp:32:16: error: 'nd' was not declared in this scope
    bd[i].ans = nd[i].ans;
                ^
0_0_28529133_20942.cpp:37:14: error: invalid types 'int[int]' for array subscript
   cout<<b[a+1]<<endl;
              ^