Problem: 2061D - Kevin and Numbers
Language: java

Solution 1 (runtime: 1421 ms):
import java.util.*;

public class Picky {
//    static boolean tcExist=true;

    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        long t=sc.nextLong();
        while(t-->0){
            long n=sc.nextLong();
            long m=sc.nextLong();
            long[] a=new long[(int) n];
            long[] b=new long[(int) m];

            for(int i=0; i<n; i++) a[i]=sc.nextLong();
            for(int i=0; i<m; i++) b[i]=sc.nextLong();
            Arrays.sort(a);
            Arrays.sort(b);

            Map<Long, Long> mpp=new HashMap<>();
            for(long num : a) mpp.put(num, mpp.getOrDefault(num, 0L)+1);

            PriorityQueue<Long> pq=new PriorityQueue<>(Collections.reverseOrder());
            for(long num : b) pq.add(num);

            long c=n-m;
            int j=0;

            while(c>=0 && !pq.isEmpty()){
                if(mpp.isEmpty()) break;
                long ele=pq.poll();

                if(mpp.containsKey(ele)){
                    long count = mpp.get(ele);
                    if(count>1) mpp.put(ele, count-1);
                    else mpp.remove(ele);
                }
                else{
                    if(ele==1){
                        System.out.println("No");
                        return;
                    }
                    long x=ele/2;
                    long y=ele/2;
                    if(ele%2!=0) y++;
                    pq.add(x);
                    pq.add(y);
                    c--;
                }
            }

            if(c>=0 && pq.isEmpty() && mpp.isEmpty()) System.out.println("Yes");
            else System.out.println("No");
        }
    }
}


Solution 2 (runtime: 890 ms):
import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) {
        FastReader in = new FastReader();
        PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
        int t = in.nextInt();
        while (t-- > 0) {
            int n = in.nextInt(), m = in.nextInt();
            long sumA = 0;
            HashMap<Long, Long> freqA = new HashMap<>();
            long[] a = new long[n];
            for (int i = 0; i < n; i++) {
                a[i] = in.nextLong();
                sumA += a[i];
                freqA.put(a[i], freqA.getOrDefault(a[i], 0L) + 1);
            }
            long sumB = 0;
            long[] b = new long[m];
            for (int i = 0; i < m; i++) {
                b[i] = in.nextLong();
                sumB += b[i];
            }
            if (sumA != sumB) {
                out.println("No");
                continue;
            }
            if (n == m) {
                HashMap<Long, Long> freqB = new HashMap<>();
                for (long x : b)
                    freqB.put(x, freqB.getOrDefault(x, 0L) + 1);
                out.println(freqA.equals(freqB) ? "Yes" : "No");
                continue;
            }
            TreeMap<Long, Long> mp = new TreeMap<>(Collections.reverseOrder());
            for (long x : b)
                mp.put(x, mp.getOrDefault(x, 0L) + 1);
            boolean ok = true;
            while (!mp.isEmpty()) {
                long cur = mp.firstKey();
                long cnt = mp.get(cur);
                mp.remove(cur);
                if (freqA.containsKey(cur)) {
                    long used = Math.min(freqA.get(cur), cnt);
                    cnt -= used;
                    long left = freqA.get(cur) - used;
                    if (left == 0)
                        freqA.remove(cur);
                    else
                        freqA.put(cur, left);
                }
                if (cnt > 0) {
                    if (cur == 1) {
                        ok = false;
                        break;
                    }
                    long left = cur / 2;
                    long right = (cur + 1) / 2;
                    mp.put(left, mp.getOrDefault(left, 0L) + cnt);
                    mp.put(right, mp.getOrDefault(right, 0L) + cnt);
                }
            }
            out.println(ok && freqA.isEmpty() ? "Yes" : "No");
        }
        out.close();
    }
    
    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;
        }
    }
}