#223189 (Java) No.619 CardShuffle

• 問題: No.619 CardShuffle
• ユーザー: 37zigen
• 提出日時: 2017-12-13 02:29:16
• 言語: Java (openjdk 23)
• 結果: WA
• 実行時間: -
• コード長: 6,178 bytes
• コンパイル時間: 2,610 ms
• コンパイル使用メモリ: 81,208 KB
• 実行使用メモリ: 73,940 KB
• 最終ジャッジ日時: 2024-12-22 21:18:56
• 合計ジャッジ時間: 49,597 ms
• ジャッジサーバーID （参考情報）: judge3 / judge2

ファイルパターン	結果
sample	WA * 1
other	WA * 30 TLE * 5

ソースコード

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import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.NoSuchElementException;
class Main {
    public static void main(String[] args) {
        //      long t = System.currentTimeMillis();
        new Main().run();
        //      System.out.println(System.currentTimeMillis() - t);
    }
    final long MOD = 1_000_000_000 + 7;
    int n;
    int sqrtN;
    ArrayDeque<Long>[] dq;
    int[] v;
    String[] op;
    void run() {
        Scanner sc = new Scanner();
        n = sc.nextInt();
        n = (n + 1) / 2;
        sqrtN = (int) Math.sqrt(n);
        v = new int[n];
        op = new String[n - 1];
        for (int i = 0; i < n; ++i) {
            v[i] = sc.nextInt();
            if (i != n - 1)
                op[i] = sc.next();
        }
        dq = new ArrayDeque[(int) (n + sqrtN - 1) / sqrtN];
        for (int i = 0; i < dq.length; ++i) {
            dq[i] = new ArrayDeque<>();
            update(i);
        }
        StringBuilder sb = new StringBuilder();
        int Q = sc.nextInt();
        while (Q-- > 0) {
            String T = sc.next();
            int x = sc.nextInt();
            int y = sc.nextInt();
            if (T.equals("?")) {
                x = (x - 1) / 2;
                y = (y - 1) / 2;
                sb.append(query(x, y));
                sb.append("\n");
            } else {
                if (x % 2 == 0) {
                    x = x / 2 - 1;
                    y = y / 2 - 1;
                    if (op[x].equals(op[y]))
                        continue;
                    {
                        String tmp = op[x];
                        op[x] = op[y];
                        op[y] = tmp;
                    }
                    update(x / sqrtN);
                    update(y / sqrtN);
                    if (x != (x + 1) / sqrtN)
                        update((x + 1) / sqrtN);
                    if (y != (y + 1) / sqrtN)
                        update((y + 1) / sqrtN);
                } else {
                    x = (x - 1) / 2;
                    y = (y - 1) / 2;
                    if (x == y)
                        continue;
                    {
                        int tmp = v[y];
                        v[y] = v[x];
                        v[x] = tmp;
                    }
                    update(x / sqrtN);
                    update(y / sqrtN);
                }
            }
        }
        System.out.println(sb);
    }
    void update(int i) {
        dq[i].clear();
        for (int j = 0; j <= sqrtN - 1 && i * sqrtN + j < n; ++j) {
            int idx = i * sqrtN + j;
            if (j > 0 && op[idx - 1].equals("*")) {
                dq[i].addLast(dq[i].pollLast() * v[idx] % MOD);
            } else {
                while (dq[i].size() >= 3) {
                    dq[i].addLast(sum(dq[i].pollLast(), dq[i].pollLast()));
                }
                dq[i].add((long) v[idx]);
            }
        }
    }
    long brute_query(int a, int b) {
        for (int i = a; i <= b; ++i) {
            if (i != a && op[i - 1].equals("*")) {
                ans.addLast(ans.pollLast() * v[i] % MOD);
            } else {
                while (ans.size() >= 3) {
                    ans.addLast(sum(ans.pollLast(), ans.pollLast()));
                }
                ans.addLast((long) v[i]);
            }
        }
        long ret = 0;
        for (long ansVal : ans) {
            ret = sum(ret, ansVal);
        }
        return ret;
    }
    ArrayDeque<Long> ans = new ArrayDeque();
    long query(int a, int b) {
        ans.clear();
        if (a / sqrtN == b / sqrtN) {
            for (int i = a; i <= b; ++i) {
                if (i != a && op[i - 1].equals("*")) {
                    ans.addLast(ans.pollLast() * v[i] % MOD);
                } else {
                    while (ans.size() >= 3) {
                        ans.addLast(sum(ans.pollLast(), ans.pollLast()));
                    }
                    ans.addLast((long) v[i]);
                }
            }
        } else {
            int l = (a + sqrtN - 1) / sqrtN * sqrtN;
            int r = b / sqrtN * sqrtN;
            for (int i = a; i < l; ++i) {
                if (i != a && op[i - 1].equals("*")) {
                    ans.addLast(ans.pollLast() * v[i] % MOD);
                } else {
                    while (ans.size() >= 3) {
                        ans.addLast(sum(ans.pollLast(), ans.pollLast()) % MOD);
                    }
                    ans.addLast((long) v[i]);
                }
            }
            for (int i = l / sqrtN; i < r / sqrtN; ++i) {
                if (i != a / sqrtN && op[i * sqrtN - 1].equals("*")) {
                    ans.addLast(ans.pollLast() * dq[i].peekFirst() % MOD);
                } else {
                    while (ans.size() >= 3) {
                        ans.addLast(sum(ans.pollLast(), ans.pollLast()));
                    }
                    ans.add(dq[i].peekFirst());
                }
                boolean first = true;
                for (long v : dq[i]) {
                    if (first) {
                        first = false;
                    } else {
                        while (ans.size() >= 3) {
                            ans.addLast(sum(ans.pollLast(), ans.pollLast()));
                        }
                        ans.addLast(v);
                    }
                }
            }
            for (int i = r; i <= b; ++i) {
                if (i != a && op[i - 1].equals("*")) {
                    ans.addLast(ans.pollLast() * v[i] % MOD);
                } else {
                    while (ans.size() >= 3) {
                        ans.addLast(sum(ans.pollLast(), ans.pollLast()));
                    }
                    ans.addLast((long) v[i]);
                }
            }
        }
        long ret = 0;
        for (long ansVal : ans) {
            ret = sum(ret, ansVal);
        }
        return ret;
    }
    long sum(long a, long b) {
        long ret = a + b;
        if (ret >= MOD)
            ret -= MOD;
        return ret;
    }
    static void tr(Object... objects) {
        System.out.println(Arrays.deepToString(objects));
    }
    class Scanner {
        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 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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