Submission #1011988

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Source Code Expand

import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;

public class Main {

    public static void main(String[] args) {
        new Main().run();
    }

    FastScanner sc;

    void run() {
        sc = new FastScanner();
        double m = sc.nextDouble();
        double km = m / 1000;

        String ans = "";
        if (km < 0.1) {
            ans = "00";
        } else if (0.1 <= km && km <= 5) {
            double tmp = km * 10;
            ans = String.format("%02d", (int) tmp);
        } else if (6 <= km && km <= 30) {
            km += 50;
            ans = String.valueOf((int) km);
        } else if (35 <= km && km <= 70) {
            int tmp = (int) (km - 30) / 5 + 80;
            ans = String.valueOf(tmp);
        } else {
            ans = "89";
        }

        System.out.println(ans);
    }

}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;

    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        } else {
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }

    private int readByte() {
        if (hasNextByte())
            return buffer[ptr++];
        else
            return -1;
    }

    private static boolean isPrintableChar(int c) {
        return 33 <= c && c <= 126;
    }

    public boolean hasNext() {
        while (hasNextByte() && !isPrintableChar(buffer[ptr]))
            ptr++;
        return hasNextByte();
    }

    public String next() {
        if (!hasNext())
            throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while (isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    public long nextLong() {
        if (!hasNext())
            throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while (true) {
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            } else if (b == -1 || !isPrintableChar(b)) {
                return minus ? -n : n;
            } else {
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }

    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)
            throw new NumberFormatException();
        return (int) nl;
    }

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

Submission Info

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