/in/foo.cc: In function 'void Min()':
/in/foo.cc:7:2: error: reference to 'min' is ambiguous
  min = a[0];//更迭最小值
  ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:9:7: error: reference to 'min' is ambiguous
   if (min >= a[i]) {
       ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:10:4: error: reference to 'min' is ambiguous
    min = a[i];//找最小值
    ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc: In function 'void upd()':
/in/foo.cc:17:11: error: reference to 'min' is ambiguous
   a[i] -= min;//减去最快的时间
           ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:23:9: error: reference to 'min' is ambiguous
  sec += min;//最快接完的时间。
         ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:31:2: error: reference to 'min' is ambiguous
  min = a[0];//初始化
  ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:33:9: error: reference to 'min' is ambiguous
  while (min) {//退出循环时，表明当前接水的人已经少于n
         ^~~
/in/foo.cc:4:21: note: candidates are: int min
 int m, n, a[10003], min, sec, ans, k, max;
                     ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:243:5: note:                 template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:195:5: note:                 template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
     min(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:38:2: error: reference to 'max' is ambiguous
  max = 0;
  ^~~
/in/foo.cc:4:39: note: candidates are: int max
 int m, n, a[10003], min, sec, ans, k, max;
                                       ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note:                 template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note:                 template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:40:7: error: reference to 'max' is ambiguous
   if (max <= a[i])
       ^~~
/in/foo.cc:4:39: note: candidates are: int max
 int m, n, a[10003], min, sec, ans, k, max;
                                       ^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
                 from /usr/include/c++/6/ios:40,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note:                 template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note:                 template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/in/foo.cc:41:4: error: reference to 'max' is ambiguous
    max = a[i];
    ^~~
/in/foo.cc:4:39: note: candidat