Language: C++

#include <iostream>
#include <climits>
#include <algorithm>
using namespace std;

const int INF = 1<<29;

//dpテーブル
int dp[1000][1010];

int calc_mp(int x,int N, int* Len){
  //dpテーブルの初期化
  for (int i = 0; i < 1000; i++) for (int j = 0; j < 1010; j++) dp[i][j] = INF;
  for (int i = 0; i < 1000; i++) for (int k = 0; k < N; k++) dp[i][Len[k]] = 0;

  for (int i = 0; i < 1000; i++){
    for (int l = 0; l < 1010; l++){
      if (l != x){
        if (l >= Len[7]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[7]]+10, dp[i][l-Len[6]]+10, dp[i][l-Len[5]]+10, dp[i][l-Len[4]]+10, dp[i][l-Len[3]]+10, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[6] && l < Len[7]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[6]]+10, dp[i][l-Len[5]]+10, dp[i][l-Len[4]]+10, dp[i][l-Len[3]]+10, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[5] && l < Len[6]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[5]]+10, dp[i][l-Len[4]]+10, dp[i][l-Len[3]]+10, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[4] && l < Len[5]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[4]]+10, dp[i][l-Len[3]]+10, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[3] && l < Len[4]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[3]]+10, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[2] && l < Len[3]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[2]]+10, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[1] && l < Len[2]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[1]]+10, dp[i][l-Len[0]]+10});
        else if (l >= Len[0] && l < Len[1]) dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1, dp[i][l-Len[0]]+10});
        else dp[i+1][l] = min({dp[i][l-1]+1, dp[i][l+1]+1});
      }
      else dp[i+1][l] = dp[i][l];
    }
  }
  return dp[999][x];
}

int main(){
  //入力
  int N,A,B,C;
  cin >> N >> A >> B >> C;
  int Len[8];
  for (int j = 0; j < N; j++) cin >> Len[j];

  sort(Len.begin(),Len.end());

  cout >> calc_mp(A,N,Len.data()) + calc_mp(B,N,Len.data()) + calc_mp(C,N,Len.data()) >> endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:42:12: error: request for member 'begin' in 'Len', which is of non-class type 'int [8]'
   42 |   sort(Len.begin(),Len.end());
      |            ^~~~~
a.cc:42:24: error: request for member 'end' in 'Len', which is of non-class type 'int [8]'
   42 |   sort(Len.begin(),Len.end());
      |                        ^~~
a.cc:44:27: error: request for member 'data' in 'Len', which is of non-class type 'int [8]'
   44 |   cout >> calc_mp(A,N,Len.data()) + calc_mp(B,N,Len.data()) + calc_mp(C,N,Len.data()) >> endl;
      |                           ^~~~
a.cc:44:53: error: request for member 'data' in 'Len', which is of non-class type 'int [8]'
   44 |   cout >> calc_mp(A,N,Len.data()) + calc_mp(B,N,Len.data()) + calc_mp(C,N,Len.data()) >> endl;
      |                                                     ^~~~
a.cc:44:79: error: request for member 'data' in 'Len', which is of non-class type 'int [8]'
   44 |   cout >> calc_mp(A,N,Len.data()) + calc_mp(B,N,Len.data()) + calc_mp(C,N,Len.data()) >> endl;
      |                                                                               ^~~~