結果

問題 No.1051 PQ Permutation
ユーザー uwiuwi
提出日時 2020-05-08 21:53:49
言語 Java19
(openjdk 21)
結果
AC  
実行時間 295 ms / 2,000 ms
コード長 6,981 bytes
コンパイル時間 9,531 ms
コンパイル使用メモリ 81,156 KB
実行使用メモリ 56,808 KB
最終ジャッジ日時 2023-09-19 07:33:31
合計ジャッジ時間 13,634 ms
ジャッジサーバーID
(参考情報)
judge14 / judge13
このコードへのチャレンジ(β)

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 43 ms
49,384 KB
testcase_01 AC 43 ms
49,432 KB
testcase_02 AC 44 ms
49,268 KB
testcase_03 AC 43 ms
49,312 KB
testcase_04 AC 44 ms
49,612 KB
testcase_05 AC 44 ms
49,120 KB
testcase_06 AC 44 ms
49,472 KB
testcase_07 AC 43 ms
49,456 KB
testcase_08 AC 44 ms
49,200 KB
testcase_09 AC 43 ms
49,260 KB
testcase_10 AC 44 ms
47,368 KB
testcase_11 AC 45 ms
49,344 KB
testcase_12 AC 42 ms
49,392 KB
testcase_13 AC 43 ms
49,248 KB
testcase_14 AC 43 ms
49,336 KB
testcase_15 AC 281 ms
55,952 KB
testcase_16 AC 295 ms
56,320 KB
testcase_17 AC 270 ms
56,732 KB
testcase_18 AC 265 ms
56,296 KB
testcase_19 AC 273 ms
54,476 KB
testcase_20 AC 295 ms
55,928 KB
testcase_21 AC 289 ms
56,076 KB
testcase_22 AC 268 ms
56,700 KB
testcase_23 AC 288 ms
55,768 KB
testcase_24 AC 288 ms
56,808 KB
testcase_25 AC 101 ms
52,036 KB
testcase_26 AC 94 ms
49,692 KB
testcase_27 AC 62 ms
50,488 KB
testcase_28 AC 113 ms
52,260 KB
testcase_29 AC 94 ms
51,360 KB
testcase_30 AC 121 ms
52,096 KB
testcase_31 AC 90 ms
50,884 KB
testcase_32 AC 114 ms
52,104 KB
testcase_33 AC 73 ms
51,120 KB
testcase_34 AC 74 ms
50,508 KB
testcase_35 AC 205 ms
55,120 KB
testcase_36 AC 202 ms
55,480 KB
testcase_37 AC 124 ms
52,384 KB
testcase_38 AC 289 ms
55,620 KB
testcase_39 AC 119 ms
52,512 KB
testcase_40 AC 284 ms
55,584 KB
testcase_41 AC 283 ms
56,380 KB
testcase_42 AC 44 ms
49,464 KB
testcase_43 AC 44 ms
49,132 KB
testcase_44 AC 45 ms
49,264 KB
testcase_45 AC 45 ms
49,376 KB
testcase_46 AC 44 ms
49,344 KB
testcase_47 AC 44 ms
49,240 KB
testcase_48 AC 152 ms
53,156 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

package contest200508;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.List;

public class F {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni(), P = ni(), Q = ni();
		int[] a = na(n);
		int ppos = 0;
		int qpos = 0;
		for(int i = 0;i < n;i++){
			if(a[i] == P)ppos = i;
			if(a[i] == Q)qpos = i;
		}
		LST rem = new LST(n+3);
		rem.set(a[n-1]);
		for(int i = n-2;i >= 0;i--){
			// i moves, <i fixed
			rem.set(a[i]);
			if(i > ppos){
				if(ppos < qpos){
					if(rem.next(a[i]+1) != -1){
						{
							int v = rem.next(a[i]+1);
							rem.unset(v);
							a[i] = v;
						}
						for(int j = i+1;j < n;j++){
							int v = rem.next(0);
							a[j] = v;
							rem.unset(v);
						}
						print(a); return;
					}
				}
			}else if(i <= qpos){
				int cur = a[i];
				while(true){
					int ne = rem.next(cur+1);
					if(ne == -1)break;
					if(ne == Q){
						cur = ne;
						continue;
					}
					a[i] = ne;
					rem.unset(ne);
					
					if(P < Q || ne == P){
						for(int j = i+1;j < n;j++){
							int v = rem.next(0);
							a[j] = v;
							rem.unset(v);
						}
					}else{
						rem.unset(Q);
						for(int j = i+1;j < n;j++){
							int v = rem.next(0);
							a[j] = v;
							rem.unset(v);
							if(v == P){
								j++;
								a[j] = Q;
							}
						}
					}
					print(a);
					return;
				}
			}
		}
		out.println(-1);
	}
	
	void print(int[] a)
	{
		boolean f = true;
		for(int v : a){
			if(!f)out.print(" ");
			f = false;
			out.print(v);
		}
		out.println();
	}
	
	public static class LST {
		public long[][] set;
		public int n;
//		public int size;
		
		public LST(int n) {
			this.n = n;
			int d = 1;
			for(int m = n;m > 1;m>>>=6, d++);
			
			set = new long[d][];
			for(int i = 0, m = n>>>6;i < d;i++, m>>>=6){
				set[i] = new long[m+1];
			}
//			size = 0;
		}
		
		// [0,r)
		public LST setRange(int r)
		{
			for(int i = 0;i < set.length;i++, r=r+63>>>6){
				for(int j = 0;j < r>>>6;j++){
					set[i][j] = -1L;
				}
				if((r&63) != 0)set[i][r>>>6] |= (1L<<r)-1;
			}
			return this;
		}
		
		// [0,r)
		public LST unsetRange(int r)
		{
			if(r >= 0){
				for(int i = 0;i < set.length;i++, r=r+63>>>6){
					for(int j = 0;j < r+63>>>6;j++){
						set[i][j] = 0;
					}
					if((r&63) != 0)set[i][r>>>6] &= ~((1L<<r)-1);
				}
			}
			return this;
		}
		
		public LST set(int pos)
		{
			if(pos >= 0 && pos < n){
//				if(!get(pos))size++;
				for(int i = 0;i < set.length;i++, pos>>>=6){
					set[i][pos>>>6] |= 1L<<pos;
				}
			}
			return this;
		}
		
		public LST unset(int pos)
		{
			if(pos >= 0 && pos < n){
//				if(get(pos))size--;
				for(int i = 0;i < set.length && (i == 0 || set[i-1][pos] == 0L);i++, pos>>>=6){
					set[i][pos>>>6] &= ~(1L<<pos);
				}
			}
			return this;
		}
		
		public boolean get(int pos)
		{
			return pos >= 0 && pos < n && set[0][pos>>>6]<<~pos<0;
		}
		
		public LST toggle(int pos)
		{
			return get(pos) ? unset(pos) : set(pos);
		}
		
		public int prev(int pos)
		{
			for(int i = 0;i < set.length && pos >= 0;i++, pos>>>=6, pos--){
				int pre = prev(set[i][pos>>>6], pos&63);
				if(pre != -1){
					pos = pos>>>6<<6|pre;
					while(i > 0)pos = pos<<6|63-Long.numberOfLeadingZeros(set[--i][pos]);
					return pos;
				}
			}
			return -1;
		}
		
		public int next(int pos)
		{
			for(int i = 0;i < set.length && pos>>>6 < set[i].length;i++, pos>>>=6, pos++){
				int nex = next(set[i][pos>>>6], pos&63);
				if(nex != -1){
					pos = pos>>>6<<6|nex;
					while(i > 0)pos = pos<<6|Long.numberOfTrailingZeros(set[--i][pos]);
					return pos;
				}
			}
			return -1;
		}
		
		private static int prev(long set, int n)
		{
			long h = set<<~n;
			if(h == 0L)return -1;
			return -Long.numberOfLeadingZeros(h)+n;
		}
		
		private static int next(long set, int n)
		{
			long h = set>>>n;
			if(h == 0L)return -1;
			return Long.numberOfTrailingZeros(h)+n;
		}
		
		@Override
		public String toString()
		{
			List<Integer> list = new ArrayList<Integer>();
			for(int pos = next(0);pos != -1;pos = next(pos+1)){
				list.add(pos);
			}
			return list.toString();
		}
	}

	
	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//		Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
//			@Override
//			public void run() {
//				long s = System.currentTimeMillis();
//				solve();
//				out.flush();
//				if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//			}
//		};
//		t.start();
//		t.join();
	}
	
	public static void main(String[] args) throws Exception { new F().run(); }
	
	private byte[] inbuf = new byte[1024];
	public int lenbuf = 0, ptrbuf = 0;
	
	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }
	
	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private long[] nal(int n)
	{
		long[] a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		return a;
	}
	
	private char[][] nm(int n, int m) {
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private int[][] nmi(int n, int m) {
		int[][] map = new int[n][];
		for(int i = 0;i < n;i++)map[i] = na(m);
		return map;
	}
	
	private int ni() { return (int)nl(); }
	
	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}
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