View Compilation Error

0_0_26228580_30845.cpp: In function 'void pb(int)':
0_0_26228580_30845.cpp:13:52: error: invalid types 'int[int]' for array subscript
         for(int i=x*block;i<x*block+hb.size;i++)x[i]=hb.tag;
                                                    ^