Language: C++

#include <iostream>
#include <iomanip>
#include <algorithm>
#include <vector>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <utility>
#include <math.h>
#include <string>
using namespace std;
 
const double PI = acos(-1);
const int M=1e9+7;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
#define pb push_back
#define mp make_pair
#define all(c) (c).begin(),(c).end()
#define oo 1e9

int n,k;
vi a;
vector <ll> dP;


int comefrom(int j,int i){
	if(j<0){
		return oo;
	}else{
		return abs(a[i]-a[j])+dP[j];
	}
}

void solve(){
	cin>>n>>k;
	a.resize(n);
	for (int i = 0; i < n; ++i)
	{
		cin>>a[i];
	}
	dP.resize(n);
	for (int i = 1; i < n; ++i)
	{
		ll v=0;
		for (int j = 1; j <= k; ++j)
		{
			if(j>i)break;
			if(!v) v=comefrom(i-j,i);
			else{
				v=min(v,comefrom(i-j,i));
			}
		}
		dP[i]=v;
	}
	printf("%lld\n",dP[n-1] );
}

int main()
{

	int t;
	t=1;
	while(t--){
		solve();
	}

	return 0;
}




Compiler output:
a.cc: In function 'void solve()':
a.cc:54:38: error: no matching function for call to 'min(ll&, int)'
   54 |                                 v=min(v,comefrom(i-j,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:54:38: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   54 |                                 v=min(v,comefrom(i-j,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:3:
/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:54:38: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   54 |                                 v=min(v,comefrom(i-j,i));
      |                                   ~~~^~~~~~~~~~~~~~~~~~~