結果

問題 No.1091 Range Xor Query
ユーザー fairy_lettucefairy_lettuce
提出日時 2020-06-24 01:51:27
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 439 ms / 2,000 ms
コード長 3,439 bytes
コンパイル時間 969 ms
コンパイル使用メモリ 118,860 KB
実行使用メモリ 48,360 KB
最終ジャッジ日時 2024-07-03 19:41:12
合計ジャッジ時間 12,406 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
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 26 ms
25,904 KB
testcase_01 AC 26 ms
25,704 KB
testcase_02 AC 26 ms
23,792 KB
testcase_03 AC 104 ms
38,520 KB
testcase_04 AC 243 ms
32,712 KB
testcase_05 AC 326 ms
44,784 KB
testcase_06 AC 43 ms
26,160 KB
testcase_07 AC 287 ms
36,488 KB
testcase_08 AC 403 ms
36,432 KB
testcase_09 AC 202 ms
31,464 KB
testcase_10 AC 300 ms
41,512 KB
testcase_11 AC 375 ms
44,980 KB
testcase_12 AC 249 ms
48,360 KB
testcase_13 AC 414 ms
39,752 KB
testcase_14 AC 321 ms
43,384 KB
testcase_15 AC 370 ms
43,288 KB
testcase_16 AC 300 ms
31,768 KB
testcase_17 AC 439 ms
44,744 KB
testcase_18 AC 87 ms
31,912 KB
testcase_19 AC 123 ms
41,720 KB
testcase_20 AC 400 ms
38,880 KB
testcase_21 AC 192 ms
32,064 KB
testcase_22 AC 392 ms
43,836 KB
testcase_23 AC 364 ms
47,088 KB
testcase_24 AC 373 ms
47,204 KB
testcase_25 AC 370 ms
45,540 KB
testcase_26 AC 365 ms
45,536 KB
testcase_27 AC 373 ms
45,156 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc)
Copyright (C) Microsoft Corporation. All rights reserved.

ソースコード

diff #

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;

namespace AtCoder.Contest.D
{
	static class Program
	{
		public static void Solve(Scanner cin)
		{
			int n = cin.ReadInt();
			int q = cin.ReadInt();
			var a = cin.ReadIntArray(n);
			var st = new Segtree<int>(n, (i, j) => i ^ j, 0);
			for (int i = 0; i < n; i++)
			{
				st.update(i, a[i]);
			}
			for (int i = 0; i < q; i++)
			{
				int l = cin.ReadInt() - 1;
				int r = cin.ReadInt() - 1;

				Console.WriteLine(st.run(l, r + 1));
			}
		}

		public static void Main(string[] args)
		{
			var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
			Console.SetOut(sw);
			var cin = new Scanner();
			Solve(cin);
			Console.Out.Flush();
		}
	}

	class Segtree<T>
	{
		int n;
		T[] tree;
		Func<T, T, T> f;
		T exnum;
		public Segtree(int m, Func<T, T, T> f, T ex)
		{
			this.f = f;
			this.exnum = ex;
			n = 1;
			while (n < m) n <<= 1;

			tree = new T[(n << 1) - 1];
			for (int i = 0; i < tree.Length; i++) tree[i] = ex;
		}
		public Segtree(int m, T ini, Func<T, T, T> f, T ex) : this(m, f, ex)
		{
			for (int i = 0; i < m; ++i) tree[i + n - 1] = ini;
			all_update();
		}
		public void assign_without_update(int j, T x)
		{
			tree[j + n - 1] = x;
		}
		public void update(int j, T x)
		{
			int i = j + n - 1;
			tree[i] = x;
			while (i > 0)
			{
				i = (i - 1) >> 1;
				tree[i] = f(tree[(i << 1) + 1], tree[(i << 1) + 2]);
			}
		}
		public void all_update()
		{
			for (int i = n - 2; i >= 0; i--)
				tree[i] = f(tree[(i << 1) + 1], tree[(i << 1) + 2]);
		}
		public T look(int i) { return tree[i + n - 1]; }

		// [s, t)
		public T run(int s, int t) { return query(s, t, 0, 0, n); }
		T query(int s, int t, int k, int l, int r)
		{
			if (r <= s || t <= l) return exnum;
			if (s <= l && r <= t) return tree[k];

			return f(query(s, t, (k << 1) + 1, l, (l + r) >> 1), query(s, t, (k + 1) << 1, (l + r) >> 1, r));
		}
	}

	class Scanner
	{
		string[] s;
		int i;

		char[] cs = new char[] { ' ' };

		public Scanner()
		{
			s = new string[0];
			i = 0;
		}

		public string Read() => ReadString();

		public string ReadString()
		{
			if (i < s.Length) return s[i++];
			string st = Console.ReadLine();
			while (st == "") st = Console.ReadLine();
			s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
			if (s.Length == 0) return ReadString();
			i = 0;
			return s[i++];
		}

		public string[] ReadStringArray(int N)
		{
			string[] Array = new string[N];
			for (int i = 0; i < N; i++)
			{
				Array[i] = ReadString();
			}
			return Array;
		}

		public int ReadInt()
		{
			return int.Parse(ReadString());
		}

		public int[] ReadIntArray(int N, int add = 0)
		{
			int[] Array = new int[N];
			for (int i = 0; i < N; i++)
			{
				Array[i] = ReadInt() + add;
			}
			return Array;
		}

		public long ReadLong()
		{
			return long.Parse(ReadString());
		}

		public long[] ReadLongArray(int N, long add = 0)
		{
			long[] Array = new long[N];
			for (int i = 0; i < N; i++)
			{
				Array[i] = ReadLong() + add;
			}
			return Array;
		}

		public double ReadDouble()
		{
			return double.Parse(ReadString());
		}

		public double[] ReadDoubleArray(int N, double add = 0)
		{
			double[] Array = new double[N];
			for (int i = 0; i < N; i++)
			{
				Array[i] = ReadDouble() + add;
			}
			return Array;
		}

		public T1 ReadValue<T1>() => (T1)Convert.ChangeType(ReadString(), typeof(T1));
	}
}
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