foo.cc:5:14: error: reference to 'max' is ambiguous
    5 | vector<int>a[max];
      |              ^~~
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algo.h:3468:5: note: candidates are: 'template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3468 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:                 'template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)'
 3462 |     max(initializer_list<_Tp> __l)
      |     ^~~
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:                 'template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:                 'template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
foo.cc:3:11: note:                 'const int max'
    3 | const int max = 100052;
      |           ^~~
foo.cc: In function 'bool ok(int)':
foo.cc:9:8: error: 'a' was not declared in this scope
    9 |     if(a[x].size()==0)return 0;
      |        ^
foo.cc:12:19: error: 'a' was not declared in this scope
   12 |     for(int i=1;i<a[x].size();i++){
      |                   ^
foo.cc:13:14: error: reference to 'max' is ambiguous
   13 |         now= max(0, now -(a[x][i]-a[x][i-1]-1) );
      |              ^~~
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algo.h:3468:5: note: candidates are: 'template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3468 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:                 'template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)'
 3462 |     max(initializer_list<_Tp> __l)
      |     ^~~
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:                 'template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:                 'template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
foo.cc:3:11: note:                 'const int max'
    3 | const int max = 100052;
      |           ^~~
foo.cc:18:10: error: reference to 'max' is ambiguous
   18 |     now= max(0, now -(t-a[x][a[x].size()-1]));
      |          ^~~
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algo.h:3468:5: note: candidates are: 'template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3468 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3462:5: note:                 'template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)'
 3462 |     max(initializer_list<_Tp> __l)
      |     ^~~
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from foo.cc:1:
/usr/include/c++/9/bits/stl_algobase.h:268:5: note:                 'template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  268 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:222:5: note:                 'template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)'
  222 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
foo.cc:3:11: note:                 'const int max'
    3 | const int max = 100052;
      |           ^~~
foo.cc:18:25: error: 'a' was not declared in this scope
   18 |     now= max(0, now -(t-a[x][a[x].size()-1]));
      |                         ^
foo.cc: In function 'int main()':
foo.cc:28:9: error: 'a' was not declared in this scope
   28 |         a[id].push_back(ts);
      |         ^
foo.cc:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |     scanf("%d%d%d",&n,&m,&t);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
foo.cc:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   27 |         scanf("%d%d",&ts,&id);
      |         ~~~~~^~~~~~~~~~~~~~~~

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