Sicily 1828：Minimal（dp）

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

int main(){
    int t;
    cin >> t;
    while(t--){
        int s1, s2;
        cin >> s1 >> s2;
        int arr1[s1+1], arr2[s2+1];
        for(int i = 1; i <= s1; i++)cin >> arr1[i];
        for(int i = 1; i <= s2; i++)cin >> arr2[i];
        sort(arr1+1, arr1+s1+1);
        sort(arr2+1, arr2+s2+1);
        long long dp[s1+1][s2+1];
                
        for(int i = 0; i <= s1; i++){
            for(int j = 0; j <= s2; j++){
                dp[i][j] = 1 << 30;
            }
        }
        

        for(int i = 0; i <= s1; i++){
            for(int j = 0; j <= s2; j++){
                if(i == 0 && j == 0) dp[i][j] = 0;
                else if(j >= i){
                    dp[i][j] = min( dp[i][j-1], abs(arr2[j]-arr1[i])+dp[i-1][j-1] );
                }
            }
        }
        cout << dp[s1][s2] << endl;
    }
} 

/*
2
4
5
1 1 1 1
1 3 5 10 100
2 3
30
20
50
10
40
*/