answer.code: In function ‘void build(int, int, int, int)’:
answer.code:10:17: error: no matching function for call to ‘max(int&)’
   10 |   d[id][c] = max(arr[d[id * 2][c]][c] >= arr[d[id * 2 + 1][c]][c]? d[id * 2][c] : d[id * 2 + 1][c]);
      |              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from answer.code:1:
/usr/include/c++/13/bits/stl_algobase.h:257:5: note: candidate: ‘template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)’
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
answer.code:10:17: note:   candidate expects 2 arguments, 1 provided
   10 |   d[id][c] = max(arr[d[id * 2][c]][c] >= arr[d[id * 2 + 1][c]][c]? d[id * 2][c] : d[id * 2 + 1][c]);
      |              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)’
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note:   template argument deduction/substitution failed:
answer.code:10:17: note:   candidate expects 3 arguments, 1 provided
   10 |   d[id][c] = max(arr[d[id * 2][c]][c] >= arr[d[id * 2 + 1][c]][c]? d[id * 2][c] : d[id * 2 + 1][c]);
      |              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5795:5: note: candidate: ‘template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)’
 5795 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5795:5: note:   template argument deduction/substitution failed:
answer.code:10:17: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘int’
   10 |   d[id][c] = max(arr[d[id * 2][c]][c] >= arr[d[id * 2 + 1][c]][c]? d[id * 2][c] : d[id * 2 + 1][c]);
      |              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)’
 5805 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note:   template argument deduction/substitution failed:
answer.code:10:17: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘int’
   10 |   d[id][c] = max(arr[d[id * 2][c]][c] >= arr[d[id * 2 + 1][c]][c]? d[id * 2][c] : d[id * 2 + 1][c]);
      |              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
answer.code: In function ‘void _modify(int, int, int)’:
answer.code:17:60: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 | void _modify(int p, int x, int c) {int tmp = p * x;for(; p <= n; p += lowbit(p)) {cd[p][c] += x, cdi[p][c] += tmp;}}
      |                                                          ~~^~~~