Problem: 2063B - Subsequence Update
Language: java

Solution 1 (runtime: 312 ms):
import java.io.*;
import java.util.*;

public class TestCodeforces
{
    public static void main(String[] args)
    {
        FastReader fr = new FastReader();
        PrintWriter pw = new PrintWriter(System.out);
        int t = fr.nextInt();
        while(t-->0)
        {
            int n = fr.nextInt();
            int l = fr.nextInt();
            int r = fr.nextInt();
            int wnd = r-l+1;
            long arr[] = new long[n];
            for(int i=0; i<n; i++)
            {   
                arr[i] = fr.nextInt();
            }   
            long min_sum = Math.min(sortSum(Arrays.copyOfRange(arr, 0, r), wnd), sortSum(Arrays.copyOfRange(arr, l-1, n), wnd));
            pw.println(min_sum);
        }
        pw.flush();
        pw.close();
    }

    public static long sortSum(long arr[], int z)
    {
        long sum = 0;
        Arrays.sort(arr);
        for(int i=0; i<z; i++)
        {
            sum += arr[i];
        }
        return sum;
    }
    static class FastReader
    {
        BufferedReader br; 
        StringTokenizer st;
        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }
        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }
        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
    
    static public boolean isPrime(int n)
    {
        int z=0;
        for(int i=2; i<=n/2; i++)
        {
            if(n%i==0)
            {
                z++;
            }
        }
        if(z==1)
        {
            return true;
        }
        return false;
    }
    
    public static int gcd(int a, int b)
    {
        if (b == 0) return a;
        return gcd(b, a % b);
    }

}

Solution 2 (runtime: 452 ms):
import java.util.Scanner;
public class Subsequence_Update{
    public static void merge(int[] arr, int l, int m, int r){
        int n1 = m - l + 1;
        int n2 = r - m;

        int[] L = new int[n1];
        int[] R = new int[n2];

        for(int i = 0; i<n1; i++){
            L[i] = arr[l + i];
        }

        for(int i = 0; i<n2; i++){
            R[i] = arr[m + 1 + i];
        }

        int i = 0;
        int j = 0;
        int k = l;

        while(i<n1 && j<n2){
            if(L[i] <= R[j]){
                arr[k] = L[i];
                i++;
            }else{
                arr[k] = R[j];
                j++;
            }
            k++;
        }

        while(i<n1){
            arr[k] = L[i];
            i++;
            k++;
        }

        while(j<n2){
            arr[k] = R[j];
            j++;
            k++;
        }
    }
    public static void mergeSort(int[] arr, int l, int r){
        if(l<r){
            int m = (l+r)/2;
            mergeSort(arr, l, m);
            mergeSort(arr, m+1, r);
            merge(arr, l, m, r);
        }
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Long t = sc.nextLong();
        for(int i = 0; i<t; i++){
            int n = sc.nextInt();
            long l = sc.nextLong();
            long r = sc.nextLong();
            int[] arr = new int[n];
            for(int j = 0; j<n; j++){
                arr[j] = sc.nextInt();
            }

            int[] arr1 = new int[(int) r];
            for(long j = 0; j<r; j++){
                arr1[(int)j] = arr[(int)j];
            }

            int[] arr2 = new int[(int)(n-l + 1)];
            for(int j = 0; j<n-l+1; j++){
                arr2[(int)j] = arr[(int)(j+l-1)];
            }

            mergeSort(arr1, 0, (int)(r-1));
            mergeSort(arr2, 0, (int)(n-l));

            Long sum1 = 0l;
            Long sum2 = 0l;

            for(int j = 0; j<(r - l + 1); j++){
                sum1 += arr1[j];
                sum2 += arr2[j];
            }

            if(sum1<=sum2){
                System.out.println(sum1);
            }else{
                System.out.println(sum2);
            }
        }
    }
}