import java.util.*;
import java.io.*;
import java.lang.*;
class Main  {
    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;
        }
    }
    public static void main(String[] args) {
        FastReader ob = new FastReader();
        int n = ob.nextInt();
        int m = ob.nextInt();
        int arr[] =  new int[n];
        int sum=0;
        for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        }
        int count=0;
        double limit=(double)sum/(4*m);
        for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        }
        if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }



    }
} import java.util.*; util.* java import java.io.*; io.* java import java.lang.*; lang.* java class Main  {
    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;
        }
    }
    public static void main(String[] args) {
        FastReader ob = new FastReader();
        int n = ob.nextInt();
        int m = ob.nextInt();
        int arr[] =  new int[n];
        int sum=0;
        for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        }
        int count=0;
        double limit=(double)sum/(4*m);
        for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        }
        if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }



    }
} Main public static void main(String[] args) {
        FastReader ob = new FastReader();
        int n = ob.nextInt();
        int m = ob.nextInt();
        int arr[] =  new int[n];
        int sum=0;
        for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        }
        int count=0;
        double limit=(double)sum/(4*m);
        for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        }
        if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }



    } main {
        FastReader ob = new FastReader();
        int n = ob.nextInt();
        int m = ob.nextInt();
        int arr[] =  new int[n];
        int sum=0;
        for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        }
        int count=0;
        double limit=(double)sum/(4*m);
        for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        }
        if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }



    } FastReader ob = new FastReader(); ob new FastReader() int n = ob.nextInt(); n ob.nextInt() ob.nextInt ob int m = ob.nextInt(); m ob.nextInt() ob.nextInt ob int arr[] =  new int[n]; arr new int[n] n int sum=0; sum 0 for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        } {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        } arr[i]=ob.nextInt() arr[i] arr i ob.nextInt() ob.nextInt ob sum+=arr[i] sum arr[i] arr i int count=0; count 0 double limit=(double)sum/(4*m); limit (double)sum/(4*m) (double)sum (4*m) 4 m for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        } int i = 0; int i = 0; i 0 i <n i n i++ i++ i {
            if((double)arr[i]>=limit){
                count++;
            }
        } {
            if((double)arr[i]>=limit){
                count++;
            }
        } if((double)arr[i]>=limit){
                count++;
            } (double)arr[i]>=limit (double)arr[i] arr i limit {
                count++;
            } count++ count if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        } count>=m count m {
            System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
            System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" String[] args args 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;
        }
    } FastReader BufferedReader br; br StringTokenizer st; st public FastReader()
        {
            br = new BufferedReader(new
                    InputStreamReader(System.in));
        } FastReader {
            br = new BufferedReader(new
                    InputStreamReader(System.in));
        } br = new BufferedReader(new
                    InputStreamReader(System.in)) 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();
        } next {
            while (st == null || !st.hasMoreElements())
            {
                try
                {
                    st = new StringTokenizer(br.readLine());
                }
                catch (IOException  e)
                {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } while (st == null || !st.hasMoreElements())
            {
                try
                {
                    st = new StringTokenizer(br.readLine());
                }
                catch (IOException  e)
                {
                    e.printStackTrace();
                }
            } st == null || !st.hasMoreElements() st == null st null !st.hasMoreElements() st.hasMoreElements() st.hasMoreElements st {
                try
                {
                    st = new StringTokenizer(br.readLine());
                }
                catch (IOException  e)
                {
                    e.printStackTrace();
                }
            } try
                {
                    st = new StringTokenizer(br.readLine());
                }
                catch (IOException  e)
                {
                    e.printStackTrace();
                } catch (IOException  e)
                {
                    e.printStackTrace();
                } IOException  e {
                    e.printStackTrace();
                } e.printStackTrace() e.printStackTrace e {
                    st = new StringTokenizer(br.readLine());
                } st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt()
        {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next long nextLong()
        {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next double nextDouble()
        {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next String nextLine()
        {
            String str = "";
            try
            {
                str = br.readLine();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            return str;
        } nextLine {
            String str = "";
            try
            {
                str = br.readLine();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            return str;
        } String str = ""; str "" try
            {
                str = br.readLine();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            } catch (IOException e)
            {
                e.printStackTrace();
            } IOException e {
                e.printStackTrace();
            } e.printStackTrace() e.printStackTrace e {
                str = br.readLine();
            } str = br.readLine() str br.readLine() br.readLine br return str; str
import java.util.*;
import java.io.*;
import java.lang.*;
class Main  {
    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;
        }
    }
    public static void main(String[] args) {
        FastReader ob = new FastReader();
        int n = ob.nextInt();
        int m = ob.nextInt();
        int arr[] =  new int[n];
        int sum=0;
        for (int i = 0; i < n; i++) {
            arr[i]=ob.nextInt();
            sum+=arr[i];
        }
        int count=0;
        double limit=(double)sum/(4*m);
        for (int i = 0; i <n ; i++) {
            if((double)arr[i]>=limit){
                count++;
            }
        }
        if(count>=m){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }



    }
}