Language: C++

#include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<queue>
#include<cstring>
using namespace std;
int cmp(long long a,long long b){
	return a>b;
}
long long C(long long a,long long b){
	long long ans=1;
	for(int i=1;i<=a;i++){
		ans*=(b-i+1);ans/=i;
	}
	return ans;
}
int n;
long long a,b;
long long s[100001];
int main()
{
   scanf("%d%lld%lld",&n,&a,&b);
   for(int i=1;i<=n;i++){
   	scanf("%lld",&s[i]);
   }
   sort(s+1,s+n+1,cmp);
   if(s[1]==s[a]){
   	cout<<s[1]<<endl;
   	int t=0;
	   long long ans=0; 
   	s[n+1]=s[1]+1;
   	for(int i=1;i<=n+1;i++){
   	   if(s[i]!=s[1]){
   	   	t=i-1;
   	   	break;
	   } 	
	}
	for(int i=a;i<=min(b,t);i++){
		ans+=C(t-i,t);
	}
	
   }
   else {
   	double ans=0;
   	   for(int i=1;i<=a;i++){
              ans+=a[i];  	
	   }
	   ans/=a;
	   cout<<ans<<endl;
   }
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:27: error: no matching function for call to 'min(long long int&, int&)'
   39 |         for(int i=a;i<=min(b,t);i++){
      |                        ~~~^~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:39:27: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   39 |         for(int i=a;i<=min(b,t);i++){
      |                        ~~~^~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: '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:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:4:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: '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:5696:5: note:   template argument deduction/substitution failed:
a.cc:39:27: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   39 |         for(int i=a;i<=min(b,t);i++){
      |                        ~~~^~~~~
a.cc:47:21: error: invalid types 'long long int[int]' for array subscript
   47 |               ans+=a[i];
      |                     ^