Problem:
Score : 100 points

Problem Statement

Takahashi is meeting up with Aoki.

They have planned to meet at a place that is D meters away from Takahashi's house in T minutes from now.

Takahashi will leave his house now and go straight to the place at a speed of S meters per minute.

Will he arrive in time?

Constraints

1 \leq D \leq 10000

1 \leq T \leq 10000

1 \leq S \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

D T S

Output

If Takahashi will reach the place in time, print Yes; otherwise, print No.

Sample Input 1

1000 15 80

Sample Output 1

Yes

It takes 12.5 minutes to go 1000 meters to the place at a speed of 80 meters per minute. They have planned to meet in 15 minutes so he will arrive in time.

Sample Input 2

2000 20 100

Sample Output 2

Yes

It takes 20 minutes to go 2000 meters to the place at a speed of 100 meters per minute. They have planned to meet in 20 minutes so he will arrive just on time.

Sample Input 3

10000 1 1

Sample Output 3

No

He will be late.

Solution in Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.io.*;
import java.util.*;

public class Main {

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tok;

        public InputReader(InputStream inputStream) {
            reader = new BufferedReader(new InputStreamReader(inputStream));
            tok = null;
        }

        public InputReader(String inputFile) throws FileNotFoundException {
            reader = new BufferedReader(new FileReader(inputFile));
            tok = null;
        }

        public String nextLine() {
            String c = "";
            try {
                c = reader.readLine();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }

            return c;
        }

        public String next() {
            while (tok == null || !tok.hasMoreTokens()) {
                try {
                    tok = new StringTokenizer(nextLine());
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }

            return tok.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

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

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

    public static void main(String args[]) {
        InputStream inputstream = System.in;
        OutputStream outputstream = System.out;
        InputReader in = new InputReader(inputstream);
        PrintWriter out = new PrintWriter(outputstream);
        Task solver = new Task();
        solver.solve(in, out);
        out.flush();
    }

    static class Task {
        public void solve(InputReader in, PrintWriter out) {
           int d=in.nextInt();
           int t=in.nextInt();
           int s=in.nextInt();
           int time=d/s;
           if(time<t)
           out.println("Yes");
           else
           out.println("No");
        }
    }
}