結果
| 問題 | No.1308 ジャンプビーコン |
| ユーザー |
 takytank
|
| 提出日時 | 2020-12-05 04:20:37 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 25,842 bytes |
| コンパイル時間 | 1,640 ms |
| コンパイル使用メモリ | 119,296 KB |
| 実行使用メモリ | 41,240 KB |
| 最終ジャッジ日時 | 2024-09-15 10:22:45 |
| 合計ジャッジ時間 | 9,566 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge1 |
（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 | 34 ms
34,396 KB |
| testcase_01 | AC | 34 ms
19,072 KB |
| testcase_02 | AC | 35 ms
19,148 KB |
| testcase_03 | AC | 36 ms
20,224 KB |
| testcase_04 | AC | 35 ms
20,352 KB |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | AC | 36 ms
20,096 KB |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | TLE | - |
| testcase_19 | -- | - |
| testcase_20 | -- | - |
| testcase_21 | -- | - |
| testcase_22 | -- | - |
| testcase_23 | -- | - |
| testcase_24 | -- | - |
| testcase_25 | -- | - |
| testcase_26 | -- | - |
| testcase_27 | -- | - |
| testcase_28 | -- | - |
| testcase_29 | -- | - |
| testcase_30 | -- | - |
| testcase_31 | -- | - |
| testcase_32 | -- | - |
| testcase_33 | -- | - |
| testcase_34 | -- | - |
| testcase_35 | -- | - |
| testcase_36 | -- | - |
| testcase_37 | -- | - |
| testcase_38 | -- | - |
| testcase_39 | -- | - |
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.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace YukiCoder
{
class Program
{
static void Main()
{
using var cin = new Scanner();
var (n, q) = cin.Int2();
long c = cin.Long();
var to = Helper.Array1(n, x => new List<Edge>());
for (int i = 0; i < n - 1; i++) {
var (u, v) = cin.Int2(-1);
long l = cin.Long();
to[u].Add(new Edge(v, l));
to[v].Add(new Edge(u, l));
}
var x = cin.ArrayInt(q, -1);
var dist = new long[n, n].Fill(long.MaxValue);
for (int i = 0; i < n; i++) {
dist[i, i] = 0;
}
for (int i = 0; i < n; i++) {
var que = new Queue<Edge>();
que.Enqueue(new Edge(i, 0));
while (que.Count > 0) {
var cur = que.Dequeue();
foreach (var next in to[cur.V]) {
long nc = cur.C + next.C;
if (dist[i, next.V] > nc) {
dist[i, next.V] = nc;
que.Enqueue(new Edge(next.V, nc));
}
}
}
}
var dp = new long[n];
for (int i = 0; i < n; i++) {
dp[i] = dist[x[0], i] + dist[i, x[1]];
}
for (int i = 0; i < q - 2; i++) {
var dd = new long[n].Fill(long.MaxValue);
for (int j = 0; j < n; j++) {
dd[j] = dp[j] + c;
}
for (int j = 0; j < n; j++) {
dp[x[i + 1]].UpdateMin(dp[j]);
}
var que = new PriorityQueue<Edge>(true);
for (int j = 0; j < n; j++) {
que.Enqueue(new Edge(j, dd[j]));
}
while (que.Count > 0) {
var cur = que.Dequeue();
foreach (var next in to[cur.V]) {
long nc = cur.C + next.C;
if (dd[next.V] > nc) {
dd[next.V] = nc;
que.Enqueue(new Edge(next.V, nc));
}
}
}
for (int j = 0; j < n; j++) {
dp[j] = Math.Min(
dd[j] + dist[j, x[i + 2]],
dp[j] + dist[x[i + 1], x[i + 2]]);
}
}
long ans = dp.Min();
Console.WriteLine(ans);
}
public readonly struct Edge : IComparable<Edge>
{
public readonly int V;
public readonly long C;
public Edge(int v, long c)
{
V = v;
C = c;
}
public int CompareTo(Edge other)
=> C.CompareTo(other.C);
}
}
public class PriorityQueue<T> where T : IComparable<T>
{
private readonly int reverseFactor_;
private T[] heap_;
public T Top => heap_[0];
public int Count { get; private set; } = 0;
public PriorityQueue(bool reverses = false)
: this(1024, reverses) { }
public PriorityQueue(
int capacity,
bool reverses = false)
{
if (capacity == 0) {
capacity = 1024;
}
heap_ = new T[capacity > 0 ? capacity : 1];
reverseFactor_ = reverses ? -1 : 1;
}
public void Enqueue(T item)
{
if (heap_.Length == Count) {
Extend(heap_.Length * 2);
}
heap_[Count] = item;
++Count;
int c = Count - 1;
while (c > 0) {
int p = (c - 1) >> 1;
if (Compare(heap_[p], item) < 0) {
heap_[c] = heap_[p];
c = p;
} else {
break;
}
}
heap_[c] = item;
}
public T Dequeue()
{
T ret = heap_[0];
int n = Count - 1;
var item = heap_[n];
int p = 0;
int c = (p << 1) + 1;
while (c < n) {
if (c != n - 1 && Compare(heap_[c + 1], heap_[c]) > 0) {
++c;
}
if (Compare(item, heap_[c]) < 0) {
heap_[p] = heap_[c];
p = c;
c = (p << 1) + 1;
} else {
break;
}
}
heap_[p] = item;
Count--;
return ret;
}
public void Clear() => Count = 0;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private int Compare(T x, T y)
=> x.CompareTo(y) * reverseFactor_;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void Extend(int newSize)
{
var newHeap = new T[newSize];
heap_.CopyTo(newHeap, 0);
heap_ = newHeap;
}
}
public struct BitFlag
{
public static BitFlag Begin() => 0;
public static BitFlag End(int bitCount) => 1 << bitCount;
public static BitFlag FromBit(int bitNumber) => 1 << bitNumber;
private readonly int flags_;
public int Flag => flags_;
public bool this[int bitNumber] => (flags_ & (1 << bitNumber)) != 0;
public BitFlag(int flags) { flags_ = flags; }
public bool Has(BitFlag target) => (flags_ & target.flags_) == target.flags_;
public bool Has(int target) => (flags_ & target) == target;
public bool HasBit(int bitNumber) => (flags_ & (1 << bitNumber)) != 0;
public BitFlag OrBit(int bitNumber) => (flags_ | (1 << bitNumber));
public BitFlag AndBit(int bitNumber) => (flags_ & (1 << bitNumber));
public BitFlag XorBit(int bitNumber) => (flags_ ^ (1 << bitNumber));
public static BitFlag operator ++(BitFlag src) => new BitFlag(src.flags_ + 1);
public static BitFlag operator --(BitFlag src) => new BitFlag(src.flags_ - 1);
public static BitFlag operator |(BitFlag lhs, BitFlag rhs)
=> new BitFlag(lhs.flags_ | rhs.flags_);
public static BitFlag operator |(BitFlag lhs, int rhs)
=> new BitFlag(lhs.flags_ | rhs);
public static BitFlag operator |(int lhs, BitFlag rhs)
=> new BitFlag(lhs | rhs.flags_);
public static BitFlag operator &(BitFlag lhs, BitFlag rhs)
=> new BitFlag(lhs.flags_ & rhs.flags_);
public static BitFlag operator &(BitFlag lhs, int rhs)
=> new BitFlag(lhs.flags_ & rhs);
public static BitFlag operator &(int lhs, BitFlag rhs)
=> new BitFlag(lhs & rhs.flags_);
public static bool operator <(BitFlag lhs, BitFlag rhs) => lhs.flags_ < rhs.flags_;
public static bool operator <(BitFlag lhs, int rhs) => lhs.flags_ < rhs;
public static bool operator <(int lhs, BitFlag rhs) => lhs < rhs.flags_;
public static bool operator >(BitFlag lhs, BitFlag rhs) => lhs.flags_ > rhs.flags_;
public static bool operator >(BitFlag lhs, int rhs) => lhs.flags_ > rhs;
public static bool operator >(int lhs, BitFlag rhs) => lhs > rhs.flags_;
public static bool operator <=(BitFlag lhs, BitFlag rhs) => lhs.flags_ <= rhs.flags_;
public static bool operator <=(BitFlag lhs, int rhs) => lhs.flags_ <= rhs;
public static bool operator <=(int lhs, BitFlag rhs) => lhs <= rhs.flags_;
public static bool operator >=(BitFlag lhs, BitFlag rhs) => lhs.flags_ >= rhs.flags_;
public static bool operator >=(BitFlag lhs, int rhs) => lhs.flags_ >= rhs;
public static bool operator >=(int lhs, BitFlag rhs) => lhs >= rhs.flags_;
public static implicit operator BitFlag(int t) => new BitFlag(t);
public static implicit operator int(BitFlag t) => t.flags_;
public override string ToString() => $"{Convert.ToString(flags_, 2).PadLeft(32, '0')} ({flags_})";
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void ForEachSubBits(Action<BitFlag> action)
{
for (BitFlag sub = flags_; sub >= 0; --sub) {
sub &= flags_;
action(sub);
}
}
}
public class HashMap<TKey, TValue> : Dictionary<TKey, TValue>
{
private readonly Func<TKey, TValue> initialzier_;
public HashMap(Func<TKey, TValue> initialzier)
: base()
{
initialzier_ = initialzier;
}
public HashMap(Func<TKey, TValue> initialzier, int capacity)
: base(capacity)
{
initialzier_ = initialzier;
}
new public TValue this[TKey key]
{
get
{
if (TryGetValue(key, out TValue value)) {
return value;
} else {
var init = initialzier_(key);
base[key] = init;
return init;
}
}
set { base[key] = value; }
}
public HashMap<TKey, TValue> Merge(
HashMap<TKey, TValue> src,
Func<TValue, TValue, TValue> mergeValues)
{
foreach (var key in src.Keys) {
this[key] = mergeValues(this[key], src[key]);
}
return this;
}
}
public struct ModInt
{
//public const long P = 1000000007;
public const long P = 998244353;
public const long ROOT = 3;
// (924844033, 5)
// (998244353, 3)
// (1012924417, 5)
// (167772161, 3)
// (469762049, 3)
// (1224736769, 3)
private long value_;
public ModInt(long value)
=> value_ = value;
public ModInt(long value, bool mods)
{
if (mods) {
value %= P;
if (value < 0) {
value += P;
}
}
value_ = value;
}
public static ModInt operator +(ModInt lhs, ModInt rhs)
{
lhs.value_ = (lhs.value_ + rhs.value_) % P;
return lhs;
}
public static ModInt operator +(long lhs, ModInt rhs)
{
rhs.value_ = (lhs + rhs.value_) % P;
return rhs;
}
public static ModInt operator +(ModInt lhs, long rhs)
{
lhs.value_ = (lhs.value_ + rhs) % P;
return lhs;
}
public static ModInt operator -(ModInt lhs, ModInt rhs)
{
lhs.value_ = (P + lhs.value_ - rhs.value_) % P;
return lhs;
}
public static ModInt operator -(long lhs, ModInt rhs)
{
rhs.value_ = (P + lhs - rhs.value_) % P;
return rhs;
}
public static ModInt operator -(ModInt lhs, long rhs)
{
lhs.value_ = (P + lhs.value_ - rhs) % P;
return lhs;
}
public static ModInt operator *(ModInt lhs, ModInt rhs)
{
lhs.value_ = lhs.value_ * rhs.value_ % P;
return lhs;
}
public static ModInt operator *(long lhs, ModInt rhs)
{
rhs.value_ = lhs * rhs.value_ % P;
return rhs;
}
public static ModInt operator *(ModInt lhs, long rhs)
{
lhs.value_ = lhs.value_ * rhs % P;
return lhs;
}
public static ModInt operator /(ModInt lhs, ModInt rhs)
{
long exp = P - 2;
while (exp > 0) {
if (exp % 2 > 0) {
lhs *= rhs;
}
rhs *= rhs;
exp /= 2;
}
return lhs;
}
public static implicit operator ModInt(long n) => new ModInt(n, true);
public static ModInt Inverse(ModInt value) => Pow(value, P - 2);
public static ModInt Pow(ModInt value, long k) => Pow(value.value_, k);
public static ModInt Pow(long value, long k)
{
long ret = 1;
for (k %= P - 1; k > 0; k >>= 1, value = value * value % P) {
if ((k & 1) == 1) {
ret = ret * value % P;
}
}
return new ModInt(ret);
}
public static Span<ModInt> NumberTheoreticTransform(
Span<int> values, bool inverses = false)
{
var mods = new ModInt[values.Length];
for (int i = 0; i < mods.Length; i++) {
mods[i] = new ModInt(values[i]);
}
return NumberTheoreticTransform(mods, inverses);
}
public static Span<ModInt> NumberTheoreticTransform(
Span<long> values, bool inverses = false)
{
var mods = new ModInt[values.Length];
for (int i = 0; i < mods.Length; i++) {
mods[i] = new ModInt(values[i]);
}
return NumberTheoreticTransform(mods, inverses);
}
public static Span<ModInt> NumberTheoreticTransform(
Span<ModInt> a, bool inverses = false)
{
int n = a.Length;
if (n == 1) {
return a;
}
var b = new ModInt[n].AsSpan();
int r = inverses
? (int)(P - 1 - (P - 1) / n)
: (int)((P - 1) / n);
ModInt s = Pow(ROOT, r);
var kp = new ModInt[n / 2 + 1];
kp.AsSpan().Fill(1);
for (int i = 0; i < n / 2; ++i) {
kp[i + 1] = kp[i] * s;
}
int l = n / 2;
for (int i = 1; i < n; i <<= 1, l >>= 1) {
r = 0;
for (int j = 0; j < l; ++j, r += i) {
s = kp[i * j];
for (int k = 0; k < i; ++k) {
var p = a[k + r];
var q = a[k + r + n / 2];
b[k + 2 * r] = p + q;
b[k + 2 * r + i] = (p - q) * s;
}
}
var temp = a;
a = b;
b = temp;
}
if (inverses) {
s = Inverse(n);
for (int i = 0; i < n; i++) {
a[i] = a[i] * s;
}
}
return a;
}
public static ModInt[,] NumberTheoreticTransform2D(ModInt[,] a, bool inverses = false)
{
int h = a.GetLength(0);
int w = a.GetLength(1);
if (h == 1 && w == 1) {
return a;
}
var b = new ModInt[h, w];
{
int n = w;
int r = inverses
? (int)(P - 1 - (P - 1) / n)
: (int)((P - 1) / n);
ModInt s = Pow(ROOT, r);
var kp = new ModInt[n / 2 + 1];
kp.AsSpan().Fill(1);
for (int i = 0; i < n / 2; ++i) {
kp[i + 1] = kp[i] * s;
}
for (int y = 0; y < h; y++) {
int l = n / 2;
for (int i = 1; i < n; i <<= 1, l >>= 1) {
r = 0;
for (int j = 0; j < l; ++j, r += i) {
s = kp[i * j];
for (int k = 0; k < i; ++k) {
var p = a[y, k + r];
var q = a[y, k + r + n / 2];
b[y, k + 2 * r] = p + q;
b[y, k + 2 * r + i] = (p - q) * s;
}
}
var temp = a;
a = b;
b = temp;
}
if (inverses) {
s = Inverse(n);
for (int i = 0; i < n; i++) {
a[y, i] = a[y, i] * s;
}
}
}
}
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
b[h, w] = 0;
}
}
{
int n = h;
int r = inverses
? (int)(P - 1 - (P - 1) / n)
: (int)((P - 1) / n);
ModInt s = Pow(ROOT, r);
var kp = new ModInt[n / 2 + 1];
kp.AsSpan().Fill(1);
for (int i = 0; i < n / 2; ++i) {
kp[i + 1] = kp[i] * s;
}
for (int x = 0; x < w; x++) {
int l = n / 2;
for (int i = 1; i < n; i <<= 1, l >>= 1) {
r = 0;
for (int j = 0; j < l; ++j, r += i) {
s = kp[i * j];
for (int k = 0; k < i; ++k) {
var p = a[k + r, x];
var q = a[k + r + n / 2, x];
b[k + 2 * r, x] = p + q;
b[k + 2 * r + i, x] = (p - q) * s;
}
}
var temp = a;
a = b;
b = temp;
}
if (inverses) {
s = Inverse(n);
for (int i = 0; i < n; i++) {
a[i, x] = a[i, x] * s;
}
}
}
}
return a;
}
public static Span<ModInt> Convolve(ReadOnlySpan<ModInt> a, ReadOnlySpan<ModInt> b)
{
int resultLength = a.Length + b.Length - 1;
int nttLenght = 1;
while (nttLenght < resultLength) {
nttLenght <<= 1;
}
var aa = new ModInt[nttLenght];
a.CopyTo(aa);
var bb = new ModInt[nttLenght];
b.CopyTo(bb);
var fa = NumberTheoreticTransform(aa);
var fb = NumberTheoreticTransform(bb);
for (int i = 0; i < nttLenght; i++) {
fa[i] *= fb[i];
}
var convolved = NumberTheoreticTransform(fa, true);
return convolved.Slice(0, resultLength);
}
public long ToLong() => value_;
public override string ToString() => value_.ToString();
}
public static class Helper
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void UpdateMin<T>(this ref T target, T value) where T : struct, IComparable<T>
=> target = target.CompareTo(value) > 0 ? value : target;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void UpdateMin<T>(this ref T target, T value, Action<T> onUpdated)
where T : struct, IComparable<T>
{
if (target.CompareTo(value) > 0) {
target = value;
onUpdated(value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void UpdateMax<T>(this ref T target, T value) where T : struct, IComparable<T>
=> target = target.CompareTo(value) < 0 ? value : target;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void UpdateMax<T>(this ref T target, T value, Action<T> onUpdated)
where T : struct, IComparable<T>
{
if (target.CompareTo(value) < 0) {
target = value;
onUpdated(value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[] Array1<T>(int n, T initialValue) where T : struct
=> new T[n].Fill(initialValue);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[] Array1<T>(int n, Func<int, T> initializer)
=> Enumerable.Range(0, n).Select(x => initializer(x)).ToArray();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[] Fill<T>(this T[] array, T value)
where T : struct
{
array.AsSpan().Fill(value);
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,] Array2<T>(int n, int m, T initialValule) where T : struct
=> new T[n, m].Fill(initialValule);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,] Array2<T>(int n, int m, Func<int, int, T> initializer)
{
var array = new T[n, m];
for (int i = 0; i < n; ++i) {
for (int j = 0; j < m; ++j) {
array[i, j] = initializer(i, j);
}
}
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,] Fill<T>(this T[,] array, T initialValue)
where T : struct
{
MemoryMarshal.CreateSpan<T>(ref array[0, 0], array.Length).Fill(initialValue);
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Span<T> AsSpan<T>(this T[,] array, int i)
=> MemoryMarshal.CreateSpan<T>(ref array[i, 0], array.GetLength(1));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,,] Array3<T>(int n1, int n2, int n3, T initialValue)
where T : struct
=> new T[n1, n2, n3].Fill(initialValue);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,,] Fill<T>(this T[,,] array, T initialValue)
where T : struct
{
MemoryMarshal.CreateSpan<T>(ref array[0, 0, 0], array.Length).Fill(initialValue);
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Span<T> AsSpan<T>(this T[,,] array, int i, int j)
=> MemoryMarshal.CreateSpan<T>(ref array[i, j, 0], array.GetLength(2));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,,,] Array4<T>(int n1, int n2, int n3, int n4, T initialValue)
where T : struct
=> new T[n1, n2, n3, n4].Fill(initialValue);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T[,,,] Fill<T>(this T[,,,] array, T initialValue)
where T : struct
{
MemoryMarshal.CreateSpan<T>(ref array[0, 0, 0, 0], array.Length).Fill(initialValue);
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Span<T> AsSpan<T>(this T[,,,] array, int i, int j, int k)
=> MemoryMarshal.CreateSpan<T>(ref array[i, j, k, 0], array.GetLength(3));
private static readonly int[] delta4_ = { 1, 0, -1, 0, 1 };
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void DoIn4(int i, int j, int imax, int jmax, Action<int, int> action)
{
for (int dn = 0; dn < 4; ++dn) {
int d4i = i + delta4_[dn];
int d4j = j + delta4_[dn + 1];
if ((uint)d4i < (uint)imax && (uint)d4j < (uint)jmax) {
action(d4i, d4j);
}
}
}
private static readonly int[] delta8_ = { 1, 0, -1, 0, 1, 1, -1, -1, 1 };
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void DoIn8(int i, int j, int imax, int jmax, Action<int, int> action)
{
for (int dn = 0; dn < 8; ++dn) {
int d8i = i + delta8_[dn];
int d8j = j + delta8_[dn + 1];
if ((uint)d8i < (uint)imax && (uint)d8j < (uint)jmax) {
action(d8i, d8j);
}
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void ForEachSubBits(int bit, Action<int> action)
{
for (int sub = bit; sub >= 0; --sub) {
sub &= bit;
action(sub);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string Reverse(string src)
{
var chars = src.ToCharArray();
for (int i = 0, j = chars.Length - 1; i < j; ++i, --j) {
var tmp = chars[i];
chars[i] = chars[j];
chars[j] = tmp;
}
return new string(chars);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string Join<T>(this IEnumerable<T> values, string separator = "")
=> string.Join(separator, values);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static string JoinNL<T>(this IEnumerable<T> values)
=> string.Join(Environment.NewLine, values);
}
public static class Extensions
{
public static uint PopCount(uint bits)
{
bits = (bits & 0x55555555) + (bits >> 1 & 0x55555555);
bits = (bits & 0x33333333) + (bits >> 2 & 0x33333333);
bits = (bits & 0x0f0f0f0f) + (bits >> 4 & 0x0f0f0f0f);
bits = (bits & 0x00ff00ff) + (bits >> 8 & 0x00ff00ff);
return (bits & 0x0000ffff) + (bits >> 16 & 0x0000ffff);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int PopCount(this BitFlag bit)
=> (int)PopCount((uint)bit.Flag);
}
public class Scanner : IDisposable
{
private const int BUFFER_SIZE = 1024;
private const int ASCII_CHAR_BEGIN = 33;
private const int ASCII_CHAR_END = 126;
private readonly string filePath_;
private readonly Stream stream_;
private readonly byte[] buf_ = new byte[BUFFER_SIZE];
private int length_ = 0;
private int index_ = 0;
private bool isEof_ = false;
public Scanner(string file = "")
{
if (string.IsNullOrWhiteSpace(file)) {
stream_ = Console.OpenStandardInput();
} else {
filePath_ = file;
stream_ = new FileStream(file, FileMode.Open);
}
Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) {
AutoFlush = false
});
}
public void Dispose()
{
Console.Out.Flush();
stream_.Dispose();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public char Char()
{
byte b;
do {
b = Read();
} while (b < ASCII_CHAR_BEGIN || ASCII_CHAR_END < b);
return (char)b;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public string Next()
{
var sb = new StringBuilder();
for (var b = Char(); b >= ASCII_CHAR_BEGIN && b <= ASCII_CHAR_END; b = (char)Read()) {
sb.Append(b);
}
return sb.ToString();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public string[] ArrayString(int length)
{
var array = new string[length];
for (int i = 0; i < length; ++i) {
array[i] = Next();
}
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int Int() => (int)Long();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int Int(int offset) => Int() + offset;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (int, int) Int2(int offset = 0)
=> (Int(offset), Int(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (int, int, int) Int3(int offset = 0)
=> (Int(offset), Int(offset), Int(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (int, int, int, int) Int4(int offset = 0)
=> (Int(offset), Int(offset), Int(offset), Int(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int[] ArrayInt(int length, int offset = 0)
{
var array = new int[length];
for (int i = 0; i < length; ++i) {
array[i] = Int(offset);
}
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public long Long()
{
long ret = 0;
byte b;
bool ng = false;
do {
b = Read();
} while (b != '-' && (b < '0' || '9' < b));
if (b == '-') {
ng = true;
b = Read();
}
for (; true; b = Read()) {
if (b < '0' || '9' < b) {
return ng ? -ret : ret;
} else {
ret = ret * 10 + b - '0';
}
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public long Long(long offset) => Long() + offset;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (long, long) Long2(long offset = 0)
=> (Long(offset), Long(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (long, long, long) Long3(long offset = 0)
=> (Long(offset), Long(offset), Long(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (long, long, long, long) Long4(long offset = 0)
=> (Long(offset), Long(offset), Long(offset), Long(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public long[] ArrayLong(int length, long offset = 0)
{
var array = new long[length];
for (int i = 0; i < length; ++i) {
array[i] = Long(offset);
}
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public BigInteger Big() => new BigInteger(Long());
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public BigInteger Big(long offset) => Big() + offset;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (BigInteger, BigInteger) Big2(long offset = 0)
=> (Big(offset), Big(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (BigInteger, BigInteger, BigInteger) Big3(long offset = 0)
=> (Big(offset), Big(offset), Big(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (BigInteger, BigInteger, BigInteger, BigInteger) Big4(long offset = 0)
=> (Big(offset), Big(offset), Big(offset), Big(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public BigInteger[] ArrayBig(int length, long offset = 0)
{
var array = new BigInteger[length];
for (int i = 0; i < length; ++i) {
array[i] = Big(offset);
}
return array;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public double Double() => double.Parse(Next(), CultureInfo.InvariantCulture);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public double Double(double offset) => Double() + offset;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (double, double) Double2(double offset = 0)
=> (Double(offset), Double(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (double, double, double) Double3(double offset = 0)
=> (Double(offset), Double(offset), Double(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public (double, double, double, double) Double4(double offset = 0)
=> (Double(offset), Double(offset), Double(offset), Double(offset));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public double[] ArrayDouble(int length, double offset = 0)
{
var array = new double[length];
for (int i = 0; i < length; ++i) {
array[i] = Double(offset);
}
return array;
}
private byte Read()
{
if (isEof_) {
throw new EndOfStreamException();
}
if (index_ >= length_) {
index_ = 0;
if ((length_ = stream_.Read(buf_, 0, BUFFER_SIZE)) <= 0) {
isEof_ = true;
return 0;
}
}
return buf_[index_++];
}
public void Save(string text)
{
if (string.IsNullOrWhiteSpace(filePath_)) {
return;
}
File.WriteAllText(filePath_ + "_output.txt", text);
}
}
}