func_code_string: #include<bits/stdc++.h>   using namespace std;   #define ll long long   #define mod (ll)1e9+7;   #define test ll t;cin>>t;while(t--)   #define endl   n    #define pb push_back   #define vi vector<int>   #define vvi vector<vi>   #define vl vector<ll>   #define vvl vector<vl>   #define vp vector<pair<int,int>>   #define pf push_front   #define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);   #define scanint(x) int x;cin>>x;   #define scanll(x) ll x;cin>>x;   #define scanstr(str) string str;cin>>str;   #define scanchr(chr) char chr;cin>>chr;   #define all(c) (c).begin(), (c).end()   #define vecread(vec) for(auto &x:vec){cin>>x;}   #define calcTime cerr <<  time taken :   << (float)clock() / CLOCKS_PER_SEC <<   secs  << endl   #define debug(a) cout<<a<<endl;   #define debug2(a,b) cout<<a<<   <<b<<endl;   #define debug3(a,b,c) cout<<a<<   <<b<<   <<c<<endl;   #define joker(V) for(auto X:V)cout<<X<<   ;cout<<endl;   #define papiya(Mp) for(auto X:Mp)cout<<X.first<<   <<X.second<<endl;         void solve(){       scanint(n)       vi arr(n);       vecread(arr);          sort(all(arr));          vvl dp(n, vl(n));          for (size_t g = 0; g < n; g++)       {           for(int i = 0, j = g; j < n; i++, j++){               if(g == 0){                   dp[i][j] = 0;               } else if(g == 1){                   dp[i][j] = abs(arr[i] - arr[j]);               } else {                   dp[i][j] = arr[j] - arr[i] + min(dp[i + 1][j], dp[i][j - 1]);               }           }       }              cout << dp[0][n - 1] << endl;   }      int main()   {       fast       #ifndef ONLINE_JUDGE       freopen( input.txt ,  r , stdin);       #endif          // test       // {           solve();       // }          calcTime;       return 0;   }