結果

問題 No.1341 真ん中を入れ替えて門松列
ユーザー 37zigen37zigen
提出日時 2019-12-20 21:17:49
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 7,113 bytes
コンパイル時間 2,739 ms
コンパイル使用メモリ 84,820 KB
実行使用メモリ 60,228 KB
最終ジャッジ日時 2024-09-21 12:00:49
合計ジャッジ時間 7,006 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 58 ms
50,360 KB
testcase_01 AC 58 ms
50,396 KB
testcase_02 AC 56 ms
50,480 KB
testcase_03 AC 56 ms
50,404 KB
testcase_04 AC 57 ms
50,496 KB
testcase_05 AC 59 ms
50,156 KB
testcase_06 WA -
testcase_07 AC 86 ms
51,856 KB
testcase_08 AC 96 ms
52,340 KB
testcase_09 AC 99 ms
51,920 KB
testcase_10 WA -
testcase_11 AC 306 ms
59,460 KB
testcase_12 WA -
testcase_13 WA -
testcase_14 AC 337 ms
60,228 KB
testcase_15 AC 329 ms
59,840 KB
testcase_16 WA -
testcase_17 WA -
testcase_18 AC 173 ms
56,492 KB
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ソースコード

diff # 

//Golden Section Search

import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.NoSuchElementException;
import java.util.PriorityQueue;

class Main {
	public static void main(String[] args) {
		long curtime = System.currentTimeMillis();
		new Main().run();
		System.err.println(System.currentTimeMillis() - curtime);
	}

	long[] C;
	long[] sumC;
	int[] l;
	int[] r;

	final void run() {
		Scanner sc = new Scanner();
		int N = sc.nextInt();
		long M = sc.nextLong();
		long[][] A = new long[N][2];
		C = new long[N];
		sumC = new long[N];
		l = new int[N];
		r = new int[N];
		for (int i = 0; i < N; ++i) {
			A[i][0] = sc.nextInt();
			C[i] = sc.nextInt();
			A[i][1] = sc.nextInt();
		}
		String[] ret = solve(N, M, A);
		for (String s : ret) {
			System.out.println(s);
		}
	}

	PriorityQueue<long[]> pq = new PriorityQueue<>(new Comparator<long[]>() {
		@Override
		public int compare(long[] o1, long[] o2) {
			if (o1[0] != o2[0])
				return Long.compare(o1[0], o2[0]);
			else
				return Long.compare(o1[2], o2[2]);
		}
	});

	final long check(long middle, int N, long M, long[][] A, boolean center) {
		if (!pq.isEmpty()) {
			throw new AssertionError();
		}
		for (int i = 0; i < N; ++i) {
			long l_after = l[i];
			binarySearchLeft(A[i][0]);
			long r_after = r[i];
			binarySearchRight(A[i][1]);
			if (!center) {
				l_after = Math.min(l_after, middle);
				r_after = Math.max(r_after, middle + 1);
			}
			A[i] = new long[] { l_after, r_after, A[i][0], A[i][1] };
		}
		Arrays.sort(A, new Comparator<long[]>() {
			@Override
			public int compare(long[] o1, long[] o2) {
				return Long.compare(o1[0], o2[0]);
			}
		});
		int p = 0, maxsz = 0;
		long ans = 0;
		Arrays.fill(need, 0);
		Arrays.fill(sz, 0);
		for (int i = -1; i <= N; ++i) {
			while (p < A.length && A[p][0] <= i) {
				pq.add(new long[] { A[p][1], A[p][2], A[p][3] });
				++p;
				maxsz = Math.max(maxsz, pq.size());
			}
			while (pq.size() > i + 1) {
				long[] v = pq.poll();
				if (v[0] >= N) {
					pq.clear();
					return -1;
				}
				need[(int) v[0]]--;
			}
			if (0 <= i && i < sz.length)
				sz[i] = pq.size();
		}
		for (int i = 1; i < N; ++i) {
			need[i] = need[i - 1] + need[i];
		}
		boolean ok = true;
		int pnd = 0, cur = 0;
		for (int i = 0; i < N; ++i) {
			pnd += Math.abs(need[i]);
			if (pnd > 0) {
				++cur;
				--pnd;
			}
			need[i] = (i + 1) - cur;
		}
		int max = 0;
		for (int i = N - 1; i >= 0; --i) {
			max = Math.max(max, sz[i]);
			ok &= max >= need[i];
		}
		if (!ok) {
			pq.clear();
			return -1;
		}
		ans += sumC[N - 1] - (pq.size() > 0 ? sumC[pq.size() - 1] : 0);
		if (center) {
			int ret = pq.size();
			pq.clear();
			return ret;
		}
		while (!pq.isEmpty()) {
			ans += pq.poll()[2];
		}
		return ans;
	}

	final long[][] copy(long[][] A_) {
		for (int i = 0; i < A_.length; ++i)
			for (int j = 0; j < A_[i].length; ++j)
				tmpA[i][j] = A_[i][j];
		return tmpA;
	}

	int[] need;
	int[] sz;
	long[][] tmpA;

	final String[] solve(int N, long M, long[][] A_) {
		need = new int[N];
		sz = new int[N];
		tmpA = new long[A_.length][A_[0].length];
		for (int i = 0; i < A_.length; ++i)
			Arrays.sort(A_[i]);
		Arrays.sort(C);
		for (int i = 0; i < sumC.length; ++i)
			sumC[i] = (i > 0 ? sumC[i - 1] : 0) + C[i];
		{
			for (int i = 0; i < N; ++i) {
				l[i] = binarySearchLeft(A_[i][0]);
				r[i] = binarySearchRight(A_[i][1]);
			}
		}
		long ret = -1;
		long center = check(-1, N, M, copy(A_), true);
		if (center == -1)
			return new String[] { "NO" };
		long left, right;
		if (check(-1, N, M, copy(A_), false) > 0) {
			left = -1;
		} else {
			long lng = -1;
			left = center;
			while (left - lng > 1) {
				long middle = (left + lng) / 2;
				if (check(middle, N, M, copy(A_), false) > 0) {
					left = middle;
				} else {
					lng = middle;
				}
			}
		}

		if (check(N, N, M, copy(A_), false) > 0) {
			right = N;
		} else {
			long rng = N;
			right = center;
			while (rng - right > 1) {
				long middle = (rng + right) / 2;
				if (check(middle, N, M, copy(A_), false) > 0) {
					right = middle;
				} else {
					rng = middle;
				}
			}
		}
		double gr=(Math.sqrt(5)+1)/2;
		long prelmv=-1,prermv=-1;
		while (right - left > 2) {
			long lm = (long)(right - (right - left) / gr);
			long rm = (long)(left  + (right - left) / gr);
			long lmv = (prelmv==-1?check(lm, N, M, copy(A_), false):prelmv);
			long rmv = (prermv==-1?check(rm, N, M, copy(A_), false):prermv);
			if (lmv > rmv){
				right = rm;
				prelmv=lmv;
				prermv=-1;
			}else{
				left = lm;
				prelmv=-1;
				prermv=rmv;
			}
			ret = Math.max(ret, lmv);
			ret = Math.max(ret, rmv);
		}
		for (long i = left; i <= right; ++i)
			ret = Math.max(ret, check(i, N, M, copy(A_), false));
		if (ret >= M)
			return new String[] { "YES", "KADOMATSU!" };
		else if (ret > 0) {
			return new String[] { "YES", "NO" };
		} else {
			return new String[] { "NO" };
		}
	}

	final int binarySearchRight(long key) {
		int ok = C.length;
		int ng = -1;
		while (ok - ng > 1) {
			int middle = (ok + ng) / 2;
			if (C[middle] > key) {
				ok = middle;
			} else {
				ng = middle;
			}
		}
		return ok;
	}

	final int binarySearchLeft(long key) {
		int ok = -1;
		int ng = C.length;
		while (ng - ok > 1) {
			int middle = (ok + ng) / 2;
			if (C[middle] < key) {
				ok = middle;
			} else {
				ng = middle;
			}
		}
		return ok;
	}

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

	private void skipUnprintable() {
		while (hasNextByte() && !isPrintableChar(buffer[ptr]))
			ptr++;
	}

	public boolean hasNext() {
		skipUnprintable();
		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 int nextInt() {
		return (int) nextLong();
	}

	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();
		}
	}
}
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