Language: C++

#include <bits/stdc++.h>
using namespace std;

//-30 -10 10 20 50
//-9 -7 -4 -3 1 2 3 4

int main(){
    int N, K;
    cin >> N >> K;
    int x[N];
    for(int i = 0; i < N; i++){
        cin >> x[i];
    }

    long long ans = INT_MAX;
    // cout << ans << endl;
    for(int i = 0; i <=  N - K + 1; i++){
        int p1 = x[i];
        int p2 = x[i + K - 1];

        if(p1 * p2 >= 0){
            ans = min(ans, max(abs(p1), abs(p2)));
        }
        else{
            ans = min(ans, abs(p2) + abs(p1) + min(abs(p1), abs(p2)));
        }
    }
    cout << ans << endl;

    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: no matching function for call to 'min(long long int&, const int&)'
   22 |             ans = min(ans, max(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:22:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   22 |             ans = min(ans, max(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:22:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   22 |             ans = min(ans, max(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:25:22: error: no matching function for call to 'min(long long int&, int)'
   25 |             ans = min(ans, abs(p2) + abs(p1) + min(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:25:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   25 |             ans = min(ans, abs(p2) + abs(p1) + min(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:25:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   25 |             ans = min(ans, abs(p2) + abs(p1) + min(abs(p1), abs(p2)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~