answer.code:280:20: error: ‘int index [1000010]’ redeclared as different kind of entity
  280 | int bad[N], index[N];
      |                    ^
In file included from /usr/include/string.h:432,
                 from /usr/include/c++/13/cstring:42,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:121,
                 from answer.code:1:
/usr/include/strings.h:61:1: note: previous declaration ‘const char* index(const char*, int)’
   61 | index (const char *__s, int __c) __THROW
      | ^~~~~
answer.code: In function ‘void BaoJiaoPisu()’:
answer.code:379:22: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript
  379 |                 index[a[i].se] = i;
      |                      ^
answer.code:397:33: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript
  397 |                 BIT.update(index[cur], 1);
      |                                 ^
answer.code:418:40: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript
  418 |                 ord.disable(1, n, index[cur], 1);
      |                                        ^