結果
| 問題 | No.977 アリス仕掛けの摩天楼 |
| ユーザー |
 kichi2004_
|
| 提出日時 | 2020-01-31 21:26:17 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 34,937 bytes |
| コンパイル時間 | 1,392 ms |
| コンパイル使用メモリ | 125,572 KB |
| 実行使用メモリ | 31,524 KB |
| 最終ジャッジ日時 | 2024-09-17 07:07:36 |
| 合計ジャッジ時間 | 3,237 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge3 |
（要ログイン）
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 | 29 ms
23,220 KB |
| testcase_01 | AC | 29 ms
24,812 KB |
| testcase_02 | AC | 30 ms
25,332 KB |
| testcase_03 | AC | 28 ms
25,580 KB |
| testcase_04 | AC | 29 ms
27,448 KB |
| testcase_05 | AC | 29 ms
25,584 KB |
| testcase_06 | AC | 29 ms
27,708 KB |
| testcase_07 | AC | 29 ms
25,660 KB |
| testcase_08 | AC | 30 ms
25,284 KB |
| testcase_09 | AC | 29 ms
25,648 KB |
| testcase_10 | WA | - |
| testcase_11 | AC | 30 ms
27,580 KB |
| testcase_12 | AC | 30 ms
25,332 KB |
| testcase_13 | AC | 38 ms
27,372 KB |
| testcase_14 | AC | 38 ms
27,228 KB |
| testcase_15 | AC | 39 ms
25,208 KB |
| testcase_16 | AC | 40 ms
25,336 KB |
| testcase_17 | AC | 36 ms
25,328 KB |
| testcase_18 | AC | 52 ms
29,680 KB |
| testcase_19 | WA | - |
| testcase_20 | AC | 69 ms
31,392 KB |
| testcase_21 | AC | 87 ms
31,524 KB |
| testcase_22 | AC | 101 ms
27,672 KB |
| testcase_23 | AC | 109 ms
31,396 KB |
| testcase_24 | AC | 106 ms
31,524 KB |
| testcase_25 | AC | 111 ms
31,516 KB |
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
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Text;
using static System.Math;
using static Solve.Methods;
using static Solve.Input;
using static Solve.Output;
using pii = Solve.Pair<int, int>;
using pll = Solve.Pair<long, long>;
using pli = Solve.Pair<long, int>;
using pil = Solve.Pair<int, long>;
using pss = Solve.Pair<string, string>;
using psi = Solve.Pair<string, int>;
using lint = System.Collections.Generic.List<int>;
using llong = System.Collections.Generic.List<long>;
using lstr = System.Collections.Generic.List<string>;
using llint = System.Collections.Generic.List<System.Collections.Generic.List<int>>;
using llstr = System.Collections.Generic.List<System.Collections.Generic.List<long>>;
using lllong = System.Collections.Generic.List<System.Collections.Generic.List<string>>;
using lii = System.Collections.Generic.List<Solve.Pair<int, int>>;
using lll = System.Collections.Generic.List<Solve.Pair<long, long>>;
using lli = System.Collections.Generic.List<Solve.Pair<long, int>>;
using lil = System.Collections.Generic.List<Solve.Pair<int, long>>;
using ll = System.Int64;
namespace Solve
{
public class Solver
{
public void Main()
{
int N = ReadInt;
var uf = new UnionFind(N);
for (int i = 0; i < N-1; i++)
{
uf.Connect(ReadInt, ReadInt);
}
cout = uf.AllParents.Count() == 1 ? "Bob" : "Alice";
}
// ReSharper disable UnusedMember.Local
private const int MOD = (int) 1e9 + 7,
INF = 1000000010;
private const long LINF = 1000000000000000100;
}
// ライブラリ置き場ここから
/// <summary>
/// Union-Find 木の集合を表します。
/// </summary>
[DebuggerDisplay("Count of Parents = {" + nameof(ParentsCount) + "}")]
public class UnionFind
{
//親の場合は ( 集合のサイズ × -1 )
private readonly int[] _parent;
public UnionFind(int count)
{
_parent = Enumerable.Repeat(-1, count).ToArray();
}
/// <summary>すべての根を列挙します。</summary>
public IEnumerable<int> AllParents =>
_parent.Select(make_pair)
.Where(x => x.first < 0)
.Select(x => x.second);
private int ParentsCount => _parent.Count(x => x < 0);
/// <summary>xの木のサイズ(要素数)を返します。</summary>
public int Size(int x) => -_parent[Find(x)];
/// <summary>xの根を返します。</summary>
public int Find(int x) => _parent[x] < 0 ? x : _parent[x] = Find(_parent[x]);
/// <summary>xとyの木を併合します。</summary>
/// <returns>併合に成功したかどうか。(falseの場合は既に同じ木)</returns>
public bool Connect(int x, int y)
{
int rx = Find(x), ry = Find(y);
if (rx == ry)
return false;
if (Size(rx) > Size(ry))
Swap(ref rx, ref ry);
_parent[rx] += _parent[ry];
_parent[ry] = rx;
return true;
}
/// <summary>xとyの根が同じかどうかを返します。/summary>
public bool Same(int x, int y) => Find(x) == Find(y);
/// <summary>根とその根に所属する葉をグループ化して返します。</summary>
public ILookup<int, int> ToLookup()
=> this.EnumeratePairs().ToLookup(x => x.Key, x => x.Value);
private IEnumerable<KeyValuePair<int, int>> EnumeratePairs()
{
for (int i = 0; i < _parent.Length; i++) yield return new KeyValuePair<int, int>(this.Find(i), i);
}
}
// ライブラリ置き場ここまで
#region Templete
#if !LOCAL
namespace Library { }
#endif
public static class Methods
{
public static readonly int[] dx = {-1, 0, 0, 1};
public static readonly int[] dy = {0, 1, -1, 0};
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Assert(bool b, string message = null)
{
if (!b) throw new Exception(message ?? "Assert failed.");
}
/*
public static Comparison<T> greater<T>()
where T : IComparable<T>
=> (a, b) => b.CompareTo(a);
*/
public static string JoinSpace<T>(this IEnumerable<T> source) => source.Join(" ");
public static string JoinEndline<T>(this IEnumerable<T> source) => source.Join("\n");
public static string Join<T>(this IEnumerable<T> source, string s) => string.Join(s, source);
public static string Join<T>(this IEnumerable<T> source, char c) => string.Join(c.ToString(), source);
/// <summary>
/// <see cref="Pair{T1, T2}"/> クラスのインスタンスを作成します。
/// </summary>
/// <typeparam name="T1">firstの型</typeparam>
/// <typeparam name="T2">secondの型</typeparam>
/// <param name="first">firstの値</param>
/// <param name="second">secondの値</param>
/// <returns>作成した<see cref="Pair{T1, T2}"/> クラスのインスタンス</returns>
public static Pair<T1, T2> make_pair<T1, T2>(T1 first, T2 second)
where T1 : IComparable<T1>
where T2 : IComparable<T2>
=> new Pair<T1, T2>(first, second);
/// <summary>aとbをスワップします。</summary>
public static void Swap<T>(ref T a, ref T b) where T : struct
{
var tmp = b;
b = a;
a = tmp;
}
/// <summary>aとbの最大公約数を求めます。</summary>
/// <returns>aとbの最大公約数</returns>
public static long Gcd(long a, long b)
{
while (true)
{
if (a < b) Swap(ref a, ref b);
if (a % b == 0) return b;
var x = a;
a = b;
b = x % b;
}
}
/// <summary>aとbの最小公倍数を求めます。</summary>
/// <returns>aとbの最小公倍数</returns>
public static long Lcm(long a, long b) => a / Gcd(a, b) * b;
/// <summary>
/// 指定した数値が素数であるかを判定します。
/// </summary>
/// <remarks>計算量 (sqrt(value)) </remarks>
/// <param name="value">判定する数値</param>
/// <returns>value が素数であるか</returns>
public static bool IsPrime(long value)
{
if (value <= 1) return false;
for (long i = 2; i * i <= value; i++)
if (value % i == 0)
return false;
return true;
}
/// <summary>
/// <see cref="a"/> ^ <see cref="b"/> (mod <see cref="p"/>) を求める
/// </summary>
/// <returns><see cref="a"/> ^ <see cref="b"/> (mod <see cref="p"/>) の値</returns>
public static long PowMod(long a, long b, long p)
{
long res = 1;
while (b > 0)
{
if (b % 2 != 0) res = res * a % p;
a = a * a % p;
b >>= 1;
}
return res;
}
/// <summary>
/// mod pにおけるaの逆元を求めます。
/// </summary>
/// <param name="a"></param>
/// <param name="p">法</param>
/// <returns></returns>
public static long ModInv(long a, long p)
=> PowMod(a, p - 2, p);
public static int DivCeil(int left, int right)
=> left / right + (left % right == 0 ? 0 : 1);
public static long DivCeil(long left, long right)
=> left / right + (left % right == 0L ? 0L : 1L);
/// <summary>
/// src の順列を求めます。
/// </summary>
/// <typeparam name="T">型</typeparam>
/// <param name="src">順列を求める配列</param>
/// <returns>src の順列</returns>
public static IEnumerable<T[]> Permutations<T>(IEnumerable<T> src)
{
var ret = new List<T[]>();
Search(ret, new Stack<T>(), src.ToArray());
return ret;
}
private static void Search<T>(ICollection<T[]> perms, Stack<T> stack, T[] a)
{
int N = a.Length;
if (N == 0) perms.Add(stack.Reverse().ToArray());
else
{
var b = new T[N - 1];
Array.Copy(a, 1, b, 0, N - 1);
for (int i = 0; i < a.Length; ++i)
{
stack.Push(a[i]);
Search(perms, stack, b);
if (i < b.Length) b[i] = a[i];
stack.Pop();
}
}
}
/// <summary>
/// 指定した条件を満たす最小の数値を返します。
/// </summary>
/// <param name="low">検索する数値の最小値</param>
/// <param name="high">検索する数値の最大値</param>
/// <param name="expression">条件</param>
/// <returns>条件を満たす最小の数値</returns>
public static long BinarySearch(long low, long high, Func<long, bool> expression)
{
while (low < high)
{
long middle = (high - low) / 2 + low;
if (!expression(middle))
high = middle;
else
low = middle + 1;
}
return high;
}
/// <summary>
/// 指定した値以上の先頭のインデクスを返します。
/// </summary>
/// <typeparam name="T">比較する値の型</typeparam>
/// <param name="arr">対象の配列（※ソート済みであること）</param>
/// <param name="start">開始インデクス [inclusive]</param>
/// <param name="end">終了インデクス [exclusive]</param>
/// <param name="value">検索する値</param>
/// <param name="comparer">比較関数(インターフェイス)</param>
/// <returns>指定した値以上の先頭のインデクス</returns>
public static int LowerBound<T>(T[] arr, int start, int end, T value, IComparer<T> comparer)
{
int low = start;
int high = end;
while (low < high)
{
var mid = ((high - low) >> 1) + low;
if (comparer.Compare(arr[mid], value) < 0)
low = mid + 1;
else
high = mid;
}
return low;
}
/// <summary>
/// 指定した値以上の先頭のインデクスを返します。
/// </summary>
/// <typeparam name="T">比較する値の型</typeparam>
/// <param name="arr">対象の配列（※ソート済みであること）</param>
/// <param name="value">検索する値</param>
/// <returns>指定した値以上の先頭のインデクス</returns>
public static int LowerBound<T>(T[] arr, T value) where T : IComparable
{
return LowerBound(arr, 0, arr.Length, value, Comparer<T>.Default);
}
/// <summary>
/// 指定した値より大きい先頭のインデクスを返します。
/// </summary>
/// <typeparam name="T">比較する値の型</typeparam>
/// <param name="arr">対象の配列（※ソート済みであること）</param>
/// <param name="start">開始インデクス [inclusive]</param>
/// <param name="end">終了インデクス [exclusive]</param>
/// <param name="value">検索する値</param>
/// <param name="comparer">比較関数(インターフェイス)</param>
/// <returns>指定した値より大きい先頭のインデクス</returns>
public static int UpperBound<T>(T[] arr, int start, int end, T value, IComparer<T> comparer)
{
int low = start;
int high = end;
while (low < high)
{
var mid = ((high - low) >> 1) + low;
if (comparer.Compare(arr[mid], value) <= 0)
low = mid + 1;
else
high = mid;
}
return low;
}
/// <summary>
/// 指定した値より大きい先頭のインデクスを返します。
/// </summary>Z
/// <typeparam name="T">比較する値の型</typeparam>
/// <param name="arr">対象の配列（※ソート済みであること）</param>
/// <param name="value">検索する値</param>
/// <returns>指定した値より大きい先頭のインデクス</returns>
public static int UpperBound<T>(T[] arr, T value)
{
return UpperBound(arr, 0, arr.Length, value, Comparer<T>.Default);
}
public static IEnumerable<TResult> SelectNotNull<TSource, TResult>(this IEnumerable<TSource> source,
Func<TSource, TResult> func)
=> source.Where(val => val != null).Select(func);
public static IEnumerable<TSource> WhereNotNull<TSource>(this IEnumerable<TSource> source)
=> source.Where(val => val != null);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[] ArrayOf<T>(params T[] arr) => arr;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static List<T> ListOf<T>(params T[] arr) => new List<T>(arr);
public static IEnumerable<TResult> Repeat<TResult>(TResult value)
{
while (true) yield return value;
// ReSharper disable once IteratorNeverReturns
}
public static IEnumerable<TResult> Repeat<TResult>(TResult value, int count)
=> Enumerable.Repeat(value, count);
[SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
public static IEnumerable<TResult> Repeat<TResult>(this IEnumerable<TResult> source, int count)
{
if (source == null) throw new ArgumentNullException(nameof(source));
if (count < 0) throw new ArgumentOutOfRangeException(nameof(count));
for (int i = 0; i < count; i++)
foreach (var v in source)
yield return v;
}
[SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
public static IEnumerable<TResult> Repeat<TResult>(this IEnumerable<TResult> source)
{
if (source == null) throw new ArgumentNullException(nameof(source));
while (true)
foreach (var v in source)
yield return v;
}
/// <summary>
/// 文字の配列を文字列に変換します。
/// </summary>
/// <param name="source">文字の配列</param>
/// <returns>変換した文字列</returns>
public static string AsString(this IEnumerable<char> source) => new string(source.ToArray());
/// <summary>
/// <see cref="source"/> の累積和を返します。
/// </summary>
/// <returns><see cref="source"/> の累積和</returns>
public static IEnumerable<long> CumSum(this IEnumerable<long> source)
{
long sum = 0;
foreach (var item in source)
yield return sum += item;
}
/// <summary>
/// <see cref="source"/> の累積和を返します。
/// </summary>
/// <returns><see cref="source"/> の累積和</returns>
public static IEnumerable<int> CumSum(this IEnumerable<int> source)
{
int sum = 0;
foreach (var item in source)
yield return sum += item;
}
/// <summary>
/// <see cref="value"/>が l以上 r未満の範囲に含まれているかを返します。
/// </summary>
/// <typeparam name="T">要素の型</typeparam>
/// <param name="value">判定する値</param>
/// <param name="l">下限の値 (含まれる)</param>
/// <param name="r">上限の値 (含まれない)</param>
/// <returns><see cref="value"/> が指定した範囲に含まれているか</returns>
public static bool IsIn<T>(this T value, T l, T r)
where T : IComparable<T>
{
if (l.CompareTo(r) > 0) throw new ArgumentException();
return l.CompareTo(value) <= 0 && value.CompareTo(r) < 0;
}
/// <summary>
/// <see cref="start"/> 以上 <see cref="end"/> 未満の値を <see cref="step"/> ずつ増やした結果を列挙します。
/// </summary>
/// <param name="start">値の下限 (含まれる)</param>
/// <param name="end">値の上限 (含まれない)</param>
/// <param name="step">1要素ごとに増やす値</param>
/// <returns>範囲の結果</returns>
public static IEnumerable<int> Range(int start, int end, int step = 1)
{
for (var i = start; i < end; i += step) yield return i;
}
/// <summary>
/// 0 以上 <see cref="end"/> 未満の値を 1 ずつ増やした結果を列挙します。
/// </summary>
/// <param name="end">値の上限 (含まれない)</param>
/// <returns>範囲の結果</returns>
public static IEnumerable<int> Range(int end) => Range(0, end);
/// <summary>
/// <see cref="start"/> 以上 <see cref="end"/> 未満の値を <see cref="step"/> ずつ増やした結果を逆順に列挙します。
/// </summary>
/// <param name="start">値の下限 (含まれる)</param>
/// <param name="end">値の上限 (含まれない)</param>
/// <param name="step">1要素ごとに増やす値</param>
/// <returns>範囲の結果</returns>
public static IEnumerable<int> RangeReverse(int start, int end, int step = 1)
{
for (var i = end - 1; i >= start; i -= step) yield return i;
}
/// <summary>
/// 0 以上 <see cref="end"/> 未満の値を 1 ずつ増やした結果を逆順に列挙します。
/// </summary>
/// <param name="end">値の上限 (含まれない)</param>
/// <returns>範囲の結果</returns>
public static IEnumerable<int> RangeReverse(int end) => RangeReverse(0, end);
/// <summary>
/// 指定した配列をコピーして昇順ソートします。（非破壊的）
/// </summary>
/// <typeparam name="T">ソートする配列の型</typeparam>
/// <param name="arr">ソートする配列</param>
/// <returns>ソートされた配列</returns>
public static T[] Sort<T>(this T[] arr)
{
var array = new T[arr.Length];
arr.CopyTo(array, 0);
Array.Sort(array);
return array;
}
/// <summary>
/// 指定した配列をコピーして降順ソートします。（非破壊的）
/// </summary>
/// <typeparam name="T">ソートする配列の型</typeparam>
/// <param name="arr">ソートする配列</param>
/// <returns>ソートされた配列</returns>
public static T[] SortDescending<T>(this T[] arr)
{
var array = new T[arr.Length];
arr.CopyTo(array, 0);
Array.Sort(array);
Array.Reverse(array);
return array;
}
public static double Log2(double x) => Log(x, 2);
public static bool chmin<T>(ref T a, T b) where T : IComparable<T>
{
if (a.CompareTo(b) > 0)
{
a = b;
return true;
}
return false;
}
public static bool chmax<T>(ref T a, T b) where T : IComparable<T>
{
if (a.CompareTo(b) < 0)
{
a = b;
return true;
}
return false;
}
public static T Min<T>(params T[] col) => col.Min();
public static T Max<T>(params T[] col) => col.Max();
/// <summary>
/// 要素数 (a, b) の、defaultValue で満たされたジャグ配列を作成します。
/// </summary>
/// <typeparam name="T">配列の型</typeparam>
/// <param name="a">1次元の要素数</param>
/// <param name="b">2次元の要素数</param>
/// <param name="defaultValue">デフォルト値</param>
/// <returns>指定した条件で初期化された配列</returns>
public static T[][] JaggedArray2D<T>(int a, int b, T defaultValue = default(T))
{
var ret = new T[a][];
for (int i = 0; i < a; i++)
{
ret[i] = Enumerable.Repeat(defaultValue, b).ToArray();
}
return ret;
}
/// <summary>
/// 要素数 (a, b) の，defaultValue で満たされた二次元配列を作成します。
/// </summary>
/// <param name="a">1次元の要素数</param>
/// <param name="b">2次元の要素数</param>
/// <param name="defaultValue">デフォルト値</param>
/// <typeparam name="T">配列の型</typeparam>
public static T[,] Array2D<T>(int a, int b, T defaultValue = default(T))
{
var ret = new T[a, b];
for (int i = 0; i < a; i++)
for (int j = 0; j < b; j++)
ret[i, j] = defaultValue;
return ret;
}
/// <summary>
/// ジャグ配列を2次元配列に変換します。配列の各要素の長さがすべて同じである必要があります。
/// </summary>
/// <param name="array">ジャグ配列</param>
/// <typeparam name="T">二次元配列</typeparam>
public static T[,] To2DArray<T>(this T[][] array)
{
if (!array.Any()) return new T[0, 0];
int len = array[0].Length;
if (array.Any(x => x.Length != len))
throw new ArgumentException("array の各要素の長さが異なります。", nameof(array));
var ret = new T[array.Length, len];
for (int i = 0; i < array.Length; i++)
{
for (int j = 0; j < len; j++)
{
ret[i, j] = array[i][j];
}
}
return ret;
}
// public static vector<T> ToVector<T>(this IEnumerable<T> source) => new vector<T>(source);
}
public static class Input
{
private const char _separator = ' ';
private static readonly Queue<string> _input = new Queue<string>();
private static readonly StreamReader sr =
#if FILE
new StreamReader("in.txt");
#else
new StreamReader(Console.OpenStandardInput());
#endif
public static string ReadLine => sr.ReadLine();
public static string ReadStr => Read;
public static string Read
{
get
{
if (_input.Count != 0) return _input.Dequeue();
// ReSharper disable once PossibleNullReferenceException
var tmp = sr.ReadLine().Split(_separator);
foreach (var val in tmp)
{
_input.Enqueue(val);
}
return _input.Dequeue();
}
}
public static int ReadInt => int.Parse(Read);
public static long ReadLong => long.Parse(Read);
public static double ReadDouble => double.Parse(Read);
public static string[] StrArray() => ReadLine.Split(' ');
public static int[] IntArray() => ReadLine.Split(' ').Select(int.Parse).ToArray();
public static long[] LongArray() => ReadLine.Split(' ').Select(long.Parse).ToArray();
public static string[] StrArray(int n)
{
var ret = new string[n];
for (long i = 0; i < n; ++i) ret[i] = Read;
return ret;
}
public static int[] IntArray(int n, int offset = 0, bool sorted = false)
{
var ret = StrArray(n).Select(x => int.Parse(x) + offset).ToArray();
if (sorted) Array.Sort(ret);
return ret;
}
public static long[] LongArray(int n, long offset = 0, bool sorted = false)
{
var ret = StrArray(n).Select(x => long.Parse(x) + offset).ToArray();
if (sorted) Array.Sort(ret);
return ret;
}
public static string[,] Str2DArray(int n, int m)
{
var ret = new string[n, m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
ret[i, j] = ReadStr;
return ret;
}
public static int[,] Int2DArray(int n, int m, int offset = 0)
{
var ret = new int[n, m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
ret[i, j] = ReadInt + offset;
return ret;
}
public static long[,] Long2DArray(int n, int m, long offset = 0)
{
var ret = new long[n, m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
ret[i, j] = ReadLong + offset;
return ret;
}
public static Tuple<string[], string[]> StrArrays2(int n)
{
var ret1 = new string[n];
var ret2 = new string[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadStr;
ret2[i] = ReadStr;
}
return Tuple.Create(ret1, ret2);
}
public static Tuple<int[], int[]> IntArrays2(int n, int offset1 = 0, int offset2 = 0)
{
var ret1 = new int[n];
var ret2 = new int[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadInt + offset1;
ret2[i] = ReadInt + offset2;
}
return Tuple.Create(ret1, ret2);
}
public static Tuple<long[], long[]> LongArrays2(int n, long offset1 = 0, long offset2 = 0)
{
var ret1 = new long[n];
var ret2 = new long[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadLong + offset1;
ret2[i] = ReadLong + offset2;
}
return Tuple.Create(ret1, ret2);
}
public static Tuple<string[], string[], string[]> StrArrays3(int n)
{
var ret1 = new string[n];
var ret2 = new string[n];
var ret3 = new string[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadStr;
ret2[i] = ReadStr;
}
return Tuple.Create(ret1, ret2, ret3);
}
public static Tuple<int[], int[], int[]> IntArrays3(int n, int offset1 = 0, int offset2 = 0, int offset3 = 0)
{
var ret1 = new int[n];
var ret2 = new int[n];
var ret3 = new int[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadInt + offset1;
ret2[i] = ReadInt + offset2;
ret3[i] = ReadInt + offset3;
}
return Tuple.Create(ret1, ret2, ret3);
}
public static Tuple<long[], long[], long[]> LongArrays3(int n, long offset1 = 0, long offset2 = 0,
long offset3 = 0)
{
var ret1 = new long[n];
var ret2 = new long[n];
var ret3 = new long[n];
for (int i = 0; i < n; i++)
{
ret1[i] = ReadLong + offset1;
ret2[i] = ReadLong + offset2;
ret3[i] = ReadLong + offset3;
}
return Tuple.Create(ret1, ret2, ret3);
}
private static bool TypeEquals<T, U>() => typeof(T) == typeof(U);
private static T ChangeType<T, U>(U a) => (T) System.Convert.ChangeType(a, typeof(T));
private static T Convert<T>(string s) => TypeEquals<T, int>() ? ChangeType<T, int>(int.Parse(s))
: TypeEquals<T, long>() ? ChangeType<T, long>(long.Parse(s))
: TypeEquals<T, double>() ? ChangeType<T, double>(double.Parse(s))
: TypeEquals<T, char>() ? ChangeType<T, char>(s[0])
: ChangeType<T, string>(s);
public static bool In<T>(out T a)
{
try
{
a = Convert<T>(Read);
return true;
}
catch
{
a = default(T);
return false;
}
}
public static bool In<T, U>(out T a, out U b)
{
try
{
var ar = StrArray(2);
a = Convert<T>(ar[0]);
b = Convert<U>(ar[1]);
return true;
}
catch
{
a = default(T);
b = default(U);
return false;
}
}
public static bool In<T, U, V>(out T a, out U b, out V c)
{
try
{
var ar = StrArray(3);
a = Convert<T>(ar[0]);
b = Convert<U>(ar[1]);
c = Convert<V>(ar[2]);
return true;
}
catch
{
a = default(T);
b = default(U);
c = default(V);
return false;
}
}
public static bool In<T, U, V, W>(out T a, out U b, out V c, out W d)
{
try
{
var ar = StrArray(4);
a = Convert<T>(ar[0]);
b = Convert<U>(ar[1]);
c = Convert<V>(ar[2]);
d = Convert<W>(ar[3]);
return true;
}
catch
{
a = default(T);
b = default(U);
c = default(V);
d = default(W);
return false;
}
}
public static bool In<T, U, V, W, X>(out T a, out U b, out V c, out W d, out X e)
{
try
{
var ar = StrArray(5);
a = Convert<T>(ar[0]);
b = Convert<U>(ar[1]);
c = Convert<V>(ar[2]);
d = Convert<W>(ar[3]);
e = Convert<X>(ar[4]);
return true;
}
catch
{
a = default(T);
b = default(U);
c = default(V);
d = default(W);
e = default(X);
return false;
}
}
}
public static class Output
{
public static void print<T>(T t) => Console.WriteLine(t);
public static void print(params object[] o) => Console.WriteLine(o.Join(" "));
public static void PrintBool(bool val, string yes = "Yes", string no = "No")
=> Console.WriteLine(val ? yes : no);
public static void PrintYn(bool val) => PrintBool(val);
public static void PrintYN(bool val) => PrintBool(val, "YES", "NO");
public static void PrintPossible(bool val) => PrintBool(val, "Possible", "Impossible");
public static void PrintYay(bool val) => PrintBool(val, "Yay!", ":(");
public static void PrintDebug(params object[] args)
=> Console.Error.WriteLine(string.Join(" ", args));
/// <summary>
/// setter で設定された値を標準出力に出力します。
/// </summary>
public static object cout
{
set { Console.WriteLine(value); }
}
/// <summary>
/// Local環境のみ，setter で設定された値を標準出力に出力します。
/// </summary>
public static object dout
{
set
{
#if LOCAL
Console.WriteLine(value);
#endif
}
}
/// <summary>
/// setter で設定された値を標準エラー出力に出力します。
/// </summary>
public static object cerr
{
set { Console.Error.WriteLine(value); }
}
public const string endl = "\n";
}
public class Program
{
public static void Main(string[] args)
{
var sw = new StreamWriter(Console.OpenStandardOutput()) {AutoFlush = false};
Console.SetOut(sw);
new Solver().Main();
Console.Out.Flush();
Console.Read();
}
}
[DebuggerDisplay("({first}, {second})")]
public class Pair<T1, T2> : IComparable<Pair<T1, T2>>, IEquatable<Pair<T1, T2>>
where T1 : IComparable<T1>
where T2 : IComparable<T2>
{
public Pair(T1 first, T2 second)
{
this.first = first;
this.second = second;
}
public T1 first;
public T2 second;
public int CompareTo(Pair<T1, T2> other)
{
if (ReferenceEquals(this, other)) return 0;
if (ReferenceEquals(null, other)) return 1;
var firstComparison = first.CompareTo(other.first);
return firstComparison != 0 ? firstComparison : second.CompareTo(other.second);
}
public override string ToString() => $"({first}, {second})";
public bool Equals(Pair<T1, T2> other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return EqualityComparer<T1>.Default.Equals(first, other.first) &&
EqualityComparer<T2>.Default.Equals(second, other.second);
}
public override bool Equals(object obj)
{
if (ReferenceEquals(null, obj)) return false;
if (ReferenceEquals(this, obj)) return true;
return obj.GetType() == GetType() && Equals((Pair<T1, T2>) obj);
}
public override int GetHashCode()
{
unchecked
{
return (EqualityComparer<T1>.Default.GetHashCode(first) * 397) ^
EqualityComparer<T2>.Default.GetHashCode(second);
}
}
}
#endregion
}