Language: C++

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
int n;
int min, max;
int a[122];
int res[122];
bool flg[20];
int main() {
while(~scanf("%d",&n)) {
int cnt = 0;
for(int i=1; i<=n;i++) scanf("%d", &a[i]);
for(int i=1;i<=n;i++) {
if(a[i]>=1 && a[i] <= 399) res[a[i]]=1;
else if(a[i] >=400 && a[i] <= 799) res[a[i]]=2;
else if(a[i] >=800 && a[i] <=1199) res[a[i]]=3;
else if(a[i] >= 1200 && a[i] <= 1599) res[a[i]]=4;
else if(a[i] >= 1600 && a[i] <= 1999) res[a[i]]=5;
else if(a[i] >= 2000 && a[i] <= 2399) res[a[i]]=6;
else if(a[i] >= 2400 && a[i] <= 2799) res[a[i]]=7;
else if(a[i] >= 2800 && a[i] <= 3199) res[a[i]]=8;
}
for(int i=1; i <=n; i++){
if(!flag[res[a[i]]]) {
flag[res[a[i]]] =1;
cnt++;
}
}
min=cnt;
int t=0;
for(int i=1; i <= n; i++){
if(a[i] >= 3200) t++;
}
max=min + t;
printf("%d %d\n",min, max);
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:5: error: 'flag' was not declared in this scope; did you mean 'flg'?
   27 | if(!flag[res[a[i]]]) {
      |     ^~~~
      |     flg
a.cc:32:1: error: reference to 'min' is ambiguous
   32 | min=cnt;
      | ^~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:5:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:                 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
In file included from /usr/include/c++/14/bits/specfun.h:43,
                 from /usr/include/c++/14/cmath:3906,
                 from a.cc:4:
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:                 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:                 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
a.cc:8:5: note:                 'int min'
    8 | int min, max;
      |     ^~~
a.cc:37:1: error: reference to 'max' is ambiguous
   37 | max=min + t;
      | ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:                 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:                 '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++/14/bits/stl_algobase.h:257:5: note:                 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
a.cc:8:10: note:                 'int max'
    8 | int min, max;
      |          ^~~
a.cc:37:5: error: reference to 'min' is ambiguous
   37 | max=min + t;
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:                 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:                 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:                 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
a.cc:8:5: note:                 'int min'
    8 | int min, max;
      |     ^~~
a.cc:38:18: error: reference to 'min' is ambiguous
   38 | printf("%d %d\n",min, max);
      |                  ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:                 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:                 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:                 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
a.cc:8:5: note:                 'int min'
    8 | int min, max;
      |     ^~~
a.cc:38:23: error: reference to 'max' is ambiguous
   38 | printf("%d %d\n",min, max);
      |                       ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:                 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:                 '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++/14/bits/stl_algobase.h:257:5: note:                 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
a.cc:8:10: note:                 'int max'
    8 | int min, max;
      |          ^~~