Language: C++

#include <bits/stdc++.h>
using namespace std;
int INF = 1000000007;

int main(){
  int N, K;
  cin >> N >> K;
  int64_t A[N];
  for(int i=0;i<N;i++) cin >> A[i];
  int64_t ans = INF;
  for(int i = 0;i<N-K+1;i++){
    if(A[i]*A[i+K-1]<0){
      if(abs(A[i])<A[i+K-1]) {
        int ans1 = abs(A[i])*2 + A[i+K-1];
        ans = min(ans, ans1);
      }
      else{ 
        int ans1 = abs(A[i]) + A[i+K-1]*2;
        ans = min(ans, ans1);
      }
    }
    else if(A[i] <= 0 && A[i+K-1] <=0){
      ans = min(ans, abs(A[i]));
    }
    else{
      ans = min(ans,A[i+K-1]);
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:18: error: no matching function for call to 'min(int64_t&, int&)'
   15 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 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:15:18: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   15 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~
/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:
/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:15:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   15 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~
a.cc:19:18: error: no matching function for call to 'min(int64_t&, int&)'
   19 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~
/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:19:18: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   19 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~
/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
/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:19:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   19 |         ans = min(ans, ans1);
      |               ~~~^~~~~~~~~~~