結果

問題 No.948 Bomb vs Dush
ユーザー 37zigen
提出日時 2019-11-24 23:36:27
言語 Java
(openjdk 23)
結果
AC  
実行時間 48 ms / 2,000 ms
コード長 2,574 bytes
コンパイル時間 2,028 ms
コンパイル使用メモリ 78,268 KB
実行使用メモリ 37,324 KB
最終ジャッジ日時 2024-06-23 07:14:02
合計ジャッジ時間 4,868 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge5
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ファイルパターン 結果
sample AC * 3
other AC * 38
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ソースコード

diff #
プレゼンテーションモードにする

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.NoSuchElementException;
public class Main {
    final long MOD = (long) 1e9 + 7;
    void run() {
        FastScanner sc = new FastScanner();
        double r = sc.nextDouble();
        double R = sc.nextDouble();
        double outer = R + r;
        double inner = R - r;
        double ang = Math.atan2(r, Math.sqrt(R * R - r * r));
        double ans = Math.PI * (outer * outer - inner * inner) * ((Math.PI - ang) / Math.PI) + Math.PI * r * r;
        System.out.println(2 * Math.PI - 2 * ang);
        System.out.println(ans);
    }
    public static void main(String[] args) throws FileNotFoundException {
        new Main().run();
    }
    void tr(Object... objects) {
        System.out.println(Arrays.deepToString(objects));
    }
}
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());
    }
}
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