Problem: 2063B - Subsequence Update
Language: java

Solution 1 (runtime: 343 ms):
import java.util.*;

public class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int t = sc.nextInt();  // number of test cases
        while (t-- > 0) {
            // Read n, l, r
            int n = sc.nextInt();
            int l = sc.nextInt();  // 1-based index
            int r = sc.nextInt();  // 1-based index

            // Read array arr
            long[] arr = new long[n + 1];  // Using long[] for larger values, and n+1 to handle 1-based indexing
            for (int i = 1; i <= n; i++) {
                arr[i] = sc.nextLong();
            }

            // Step 1: Calculate the sum for the range [l, r]
            long initialSum = 0;
            for (int i = l; i <= r; i++) {
                initialSum += arr[i];
            }
            long min = initialSum;  // Store the initial sum as the minimum

            // Step 2: Find the smallest `r - l + 1` elements from [1, r]
            List<Long> prefix = new ArrayList<>();
            for (int i = 1; i <= r; i++) {
                prefix.add(arr[i]);
            }
            Collections.sort(prefix);
            long prefixSum = 0;
            // Sum the smallest `r - l + 1` elements from the sorted prefix
            for (int i = 0; i < r - l + 1; i++) {
                prefixSum += prefix.get(i);
            }
            min = Math.min(min, prefixSum);  // Update the minimum sum

            // Step 3: Find the smallest `r - l + 1` elements from [l, n]
            List<Long> suffix = new ArrayList<>();
            for (int i = l; i <= n; i++) {
                suffix.add(arr[i]);
            }
            Collections.sort(suffix);
            long suffixSum = 0;
            // Sum the smallest `r - l + 1` elements from the sorted suffix
            for (int i = 0; i < r - l + 1; i++) {
                suffixSum += suffix.get(i);
            }
            min = Math.min(min, suffixSum);  // Update the minimum sum

            // Output the result for the current test case
            System.out.println(min);
        }
    }
}


Solution 2 (runtime: 343 ms):
import java.util.*;

import java.io.*;



public class B_Subsequence_Update {

    public static void main(String[] args) {

        try {

            FastReader in=new FastReader();

            FastWriter out=new FastWriter();

            int testcases=in.nextInt();

            while(testcases-- >0){

                int n=in.nextInt();

                int l=in.nextInt();

                int r=in.nextInt();

                l--;

                r--;

                long a[]=new long[n];

                for(int i=0;i<n;i++){

                    a[i]=in.nextLong();

                }

                List<Long> s=new ArrayList<>();

                List<Long> e=new ArrayList<>();

                List<Long> bh=new ArrayList<>();

                for(int i=0;i<l;i++) s.add(a[i]);

                for(int j=r+1;j<n;j++) e.add(a[j]);

                Collections.sort(s);

                Collections.sort(e);

                long curr=0;

                for(int i=l;i<=r;i++){

                    curr+=a[i];

                    bh.add(a[i]);

                }

                Collections.sort(bh,Collections.reverseOrder());

                long ans=curr;

                long x=curr;

                int i=0;

                int j=0;

                while(i<s.size() && j<bh.size()){

                    curr-=bh.get(j);

                    curr+=s.get(i);

                    ans=Math.min(ans,curr);

                    i++;j++;

                }

                i=0;

                j=0;

                curr=x;

                while(i<e.size() && j<bh.size()){

                    curr-=bh.get(j);

                    curr+=e.get(i);

                    ans=Math.min(ans,curr);

                    i++;j++;

                }

                out.println(ans);

            }



            out.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    static class FastReader{

        BufferedReader br;

        StringTokenizer st;

        public FastReader(){

            br=new BufferedReader(new InputStreamReader(System.in));

        }

        String next(){

            while(st==null || !st.hasMoreTokens()){

                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());

        }

        char nextChar() {

            return next().charAt(0);

        }

        String nextLine(){

            String str="";

            try {

                str=br.readLine().trim();

            } catch (Exception e) {

                e.printStackTrace();

            }

            return str;

        }

    }



    static class FastWriter {

        private final BufferedWriter bw;



        public FastWriter() {

            this.bw = new BufferedWriter(new OutputStreamWriter(System.out));

        }



        public void print(Object object) throws IOException {

            bw.append("" + object);

        }



        public void println(Object object) throws IOException {

            print(object);

            bw.append("\n");

        }



        public void close() throws IOException {

            bw.close();

        }

    }

}