View Compilation Error

0_0_23946988_3218.cpp:12:11: error: 'maxqu_be' does not name a type
 int n, op;maxqu_be
           ^
0_0_23946988_3218.cpp:94:2: error: 'tree_ns' does not name a type
 }tree_ns, tree_ds_ns;
  ^
0_0_23946988_3218.cpp: In function 'int main()':
0_0_23946988_3218.cpp:105:5: error: 'tree_ds_ns' was not declared in this scope
     tree_ds_ns.init(1e5);
     ^
0_0_23946988_3218.cpp:106:5: error: 'tree_ns' was not declared in this scope
     tree_ns.init(1e5);
     ^