結果
| 問題 |
No.3015 右に寄せろ！
|
| ユーザー |
 yupiteru_kun
|
| 提出日時 | 2025-01-25 13:46:11 |
| 言語 | C# (.NET 8.0.404) |
| 結果 |
AC
|
| 実行時間 | 139 ms / 2,000 ms |
| コード長 | 21,823 bytes |
| コンパイル時間 | 17,082 ms |
| コンパイル使用メモリ | 170,152 KB |
| 実行使用メモリ | 191,020 KB |
| 最終ジャッジ日時 | 2025-01-25 22:58:52 |
| 合計ジャッジ時間 | 13,223 ms |
|
ジャッジサーバーID （参考情報） |
judge1 / judge7 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| other | AC * 36 |
コンパイルメッセージ
復元対象のプロジェクトを決定しています... /home/judge/data/code/main.csproj を復元しました (106 ミリ秒)。 main -> /home/judge/data/code/bin/Release/net8.0/main.dll main -> /home/judge/data/code/bin/Release/net8.0/publish/
ソースコード
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using static System.Math;
using System.Text;
using System.Threading;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Library;
namespace Program
{
public static class ProblemC
{
static bool SAIKI = false;
static public int numberOfRandomCases = 100;
static public void MakeTestCase(List<string> _input, List<string> _output, ref Func<string[], bool> _outputChecker)
{
var s = new List<char>();
var n = (xorshift % 10) + 1;
for (var i = 0; i < n; ++i)
{
s.Add((xorshift % 2) == 0 ? '0' : '1');
}
var ans = 0L;
_input.Add(new string(s.ToArray()));
while (true)
{
var ended = true;
for (var i = 0; i < s.Count; ++i)
{
if (s[i] == '0')
{
if (i > 1)
{
if (s[i - 1] == '1' && s[i - 2] == '1')
{
s[i - 2] = '0';
s[i] = '1';
++ans;
ended = false;
break;
}
}
}
}
if (ended) break;
}
_output.Add(ans.ToString());
}
static public void Solve()
{
var S = NS;
var renzoku = 0L;
var ans = 0L;
foreach (var item in LIB_Common.RunLength(S))
{
if (item.value == '1')
{
renzoku += item.count;
}
else
{
for (var i = 0;i < item.count;++i) {
var cnt = renzoku / 2;
ans += cnt;
renzoku = cnt * 2;
}
}
}
Console.WriteLine(ans);
}
class Printer : StreamWriter
{
public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { base.AutoFlush = false; }
public Printer(Stream stream, Encoding encoding) : base(stream, encoding) { base.AutoFlush = false; }
}
static LIB_FastIO fastio = new LIB_FastIODebug();
static string[] args;
static public void Main(string[] args_t) { args = args_t; if (args_t.Length == 0) { fastio = new LIB_FastIO(); Console.SetOut(new Printer(Console.OpenStandardOutput())); } if (SAIKI) { var t = new Thread(Solve, 134217728); t.Start(); t.Join(); } else Solve(); Console.Out.Flush(); }
static long NN => fastio.Long();
static double ND => fastio.Double();
static string NS => fastio.Scan();
static long[] NNList(long N) => Repeat(0, N).Select(_ => NN).ToArray();
static double[] NDList(long N) => Repeat(0, N).Select(_ => ND).ToArray();
static string[] NSList(long N) => Repeat(0, N).Select(_ => NS).ToArray();
static long Count<T>(this IEnumerable<T> x, Func<T, bool> pred) => Enumerable.Count(x, pred);
static IEnumerable<T> Repeat<T>(T v, long n) => Enumerable.Repeat<T>(v, (int)n);
static IEnumerable<int> Range(long s, long c) => Enumerable.Range((int)s, (int)c);
static IOrderedEnumerable<T> OrderByRand<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x, _ => xorshift);
static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x.OrderByRand(), e => e);
static IOrderedEnumerable<T1> OrderBy<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderBy(x.OrderByRand(), selector);
static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x) => Enumerable.OrderByDescending(x.OrderByRand(), e => e);
static IOrderedEnumerable<T1> OrderByDescending<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderByDescending(x.OrderByRand(), selector);
static IOrderedEnumerable<string> OrderBy(this IEnumerable<string> x) => x.OrderByRand().OrderBy(e => e, StringComparer.OrdinalIgnoreCase);
static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderBy(selector, StringComparer.OrdinalIgnoreCase);
static IOrderedEnumerable<string> OrderByDescending(this IEnumerable<string> x) => x.OrderByRand().OrderByDescending(e => e, StringComparer.OrdinalIgnoreCase);
static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderByDescending(selector, StringComparer.OrdinalIgnoreCase);
static string Join<T>(this IEnumerable<T> x, string separator = "") => string.Join(separator, x);
static uint xorshift { get { _xsi.MoveNext(); return _xsi.Current; } }
static IEnumerator<uint> _xsi = _xsc();
static IEnumerator<uint> _xsc() { uint x = 123456789, y = 362436069, z = 521288629, w = (uint)(DateTime.Now.Ticks & 0xffffffff); while (true) { var t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); yield return w; } }
static bool Chmax<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) < 0) { lhs = rhs; return true; } return false; }
static bool Chmin<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) > 0) { lhs = rhs; return true; } return false; }
static void Fill<T>(this T[] array, T value) => array.AsSpan().Fill(value);
static void Fill<T>(this T[,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0], array.Length).Fill(value);
static void Fill<T>(this T[,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0], array.Length).Fill(value);
static void Fill<T>(this T[,,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0, 0], array.Length).Fill(value);
}
}
namespace Library {
class LIB_Common
{
public struct RunLengthResult<T>
{
public long count;
public T value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public List<RunLengthResult<T>> RunLength<T>(IEnumerable<T> l)
{
T before = default(T);
var cnt = 0;
var ret = new List<RunLengthResult<T>>();
foreach (var item in l)
{
if (!before.Equals(item))
{
if (cnt != 0)
{
ret.Add(new RunLengthResult<T> { count = cnt, value = before });
cnt = 0;
}
}
before = item;
++cnt;
}
if (cnt != 0) ret.Add(new RunLengthResult<T> { count = cnt, value = before });
return ret;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public List<T> LCS<T>(T[] s, T[] t) where T : IEquatable<T>
{
int sl = s.Length, tl = t.Length;
var dp = new int[sl + 1, tl + 1];
for (var i = 0; i < sl; i++)
{
for (var j = 0; j < tl; j++)
{
dp[i + 1, j + 1] = s[i].Equals(t[j]) ? dp[i, j] + 1 : Max(dp[i + 1, j], dp[i, j + 1]);
}
}
{
var r = new List<T>();
int i = sl, j = tl;
while (i > 0 && j > 0)
{
if (s[--i].Equals(t[--j])) r.Add(s[i]);
else if (dp[i, j + 1] > dp[i + 1, j]) ++j;
else ++i;
}
r.Reverse();
return r;
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public (int[] result, List<T> dp) LIS<T>(IEnumerable<T> array, bool strict) where T : IComparable<T>
{
var l = new List<T>();
var ret = new List<int>();
foreach (var e in array)
{
var left = -1;
var right = l.Count;
while (right - left > 1)
{
var mid = (right + left) / 2;
if (l[mid].CompareTo(e) < 0 || !strict && l[mid].CompareTo(e) == 0) left = mid;
else right = mid;
}
if (right == l.Count) l.Add(e);
else l[right] = e;
ret.Add(l.Count);
}
return (ret.ToArray(), l);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public (long k, T val) SanbunTansaku<T>(long left, long right, Func<long, T> fun) where T : IComparable<T>
{
var size = right - left;
var fib = new LIB_Deque<long>();
fib.PushBack(1);
fib.PushBack(1);
while (fib[fib.Count - 1] * 2 + fib[fib.Count - 2] <= size)
{
fib.PushBack(fib[fib.Count - 1] + fib[fib.Count - 2]);
}
var valueLeft = left;
var valueRight = right;
Func<long, (bool isMax, T value)> calc = x =>
{
if (x < valueLeft || valueRight <= x) return (true, default(T));
return (false, fun(x));
};
--left;
var lv = calc(left);
var m1 = left + fib.PopBack();
var m2 = m1 + fib.Back;
var m1v = calc(m1);
var m2v = calc(m2);
var rv = calc(right = m1 - left + m1 + fib.Back);
while (fib.Count > 2)
{
if (m1v.CompareTo(m2v) < 0)
{
rv = m2v; right = m2;
m2v = m1v; m2 = m1;
m1v = calc(m1 = left + fib.PopBack());
}
else
{
lv = m1v; left = m1;
m1v = m2v; m1 = m2;
m2v = calc(m2 = left + fib.PopBack() + fib.Back);
}
}
var ans = calc(left);
for (var i = left + 1; i < right; ++i)
{
var na = calc(i);
if (ans.CompareTo(na) > 0)
{
ans = na;
left = i;
}
}
return (left, ans.value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public (double k, T val) SanbunTansaku<T>(double left, double right, Func<double, T> fun) where T : IComparable<T>
{
const double PHI = 0.6180339887;
var lv = fun(left);
var rv = fun(right);
var m2 = left + (right - left) * PHI;
var m2v = fun(m2);
var m1 = left + (m2 - left) * PHI;
var m1v = fun(m1);
for (var i = 0; i < 200; ++i)
{
if (m1v.CompareTo(m2v) < 0)
{
rv = m2v; right = m2;
m2v = m1v; m2 = m1;
m1v = fun(m1 = left + (m2 - left) * PHI);
}
else
{
lv = m1v; left = m1;
m1v = m2v; m1 = m2;
m2v = fun(m2 = m1 + (m1 - left) * PHI);
}
}
return (m1, m1v);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public long[] NoshiBasis(long[] elementList)
{
var basis = new List<long>();
foreach (var item in elementList)
{
var e = item;
foreach (var item2 in basis)
{
var v = e ^ item2;
if (e > v) e = v;
}
if (e > 0)
{
basis.Add(e);
}
}
var ret = new List<long>();
basis = basis.OrderByDescending(e => e).ToList();
for (var i = 0; i < basis.Count; ++i)
{
var v = basis[i];
for (var j = i + 1; j < basis.Count; ++j)
{
var v2 = v ^ basis[j];
if (v > v2) v = v2;
}
ret.Add(v);
}
return ret.ToArray();
}
static public int[] MergeSort<T>(IList<T> list, int l, int r, Func<T, T, bool> leftIsSmall)
{
int Fill(int x)
{
--x;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
return ++x;
}
var N = r - l;
var ret = Enumerable.Range(0, N).ToArray();
if (N == 1) return ret;
{
var i = 0;
var j = (N + 1) / 2;
while (j < N)
{
if (!leftIsSmall(list[l + i], list[l + j]))
{
(list[l + i], list[l + j]) = (list[l + j], list[l + i]);
(ret[i], ret[j]) = (ret[j], ret[i]);
}
++i; ++j;
}
}
if (N == 2) return ret;
{
var perm = MergeSort(list, l + (N + 1) / 2, r, leftIsSmall);
var inv = Enumerable.Range(0, N / 2).ToArray();
var p = Enumerable.Range(0, N / 2).ToArray();
for (var i = 0; i < N / 2; ++i)
{
var j = inv[perm[i]];
if (i != j)
{
(list[l + i], list[l + j]) = (list[l + j], list[l + i]);
(ret[i], ret[j]) = (ret[j], ret[i]);
(ret[i + (N + 1) / 2], ret[j + (N + 1) / 2]) = (ret[j + (N + 1) / 2], ret[i + (N + 1) / 2]);
(p[i], p[j]) = (p[j], p[i]);
(inv[p[i]], inv[p[j]]) = (inv[p[j]], inv[p[i]]);
}
}
}
{
var inv = Enumerable.Range(0, N + 1).ToArray();
var p = Enumerable.Range(0, N + 1).ToArray();
void Swap(int x, int y)
{
if (x == y) return;
(list[l + x], list[l + y]) = (list[l + y], list[l + x]);
(ret[x], ret[y]) = (ret[y], ret[x]);
(p[x], p[y]) = (p[y], p[x]);
(inv[p[x]], inv[p[y]]) = (inv[p[y]], inv[p[x]]);
}
void Rotate(int L, int R)
{
for (var i = R; --i > L;) Swap(L, i);
}
void BinarySearch(int X, int L, int R)
{
while (L + 1 < R)
{
var x = R - L;
var y = Fill(x);
var z = 3 * y / 4;
var M = L + (x < z ? y / 4 : x - y / 2);
if (leftIsSmall(list[l + M], list[l + X])) L = M;
else R = M;
}
Rotate(X, R);
}
Rotate(0, (N + 1) / 2);
var L = 1;
var R = Min(3, (N + 1) / 2);
var C = 8;
var now = 1;
while (L < (N + 1) / 2)
{
for (var i = R; i-- > L; ++now)
{
BinarySearch(i - L, (N + 1) / 2 - now - 1, inv[i + (N + 1) / 2]);
}
C *= 2;
L = R;
R = Min((C + 1) / 3, (N + 1) / 2);
}
}
return ret;
}
}
class LIB_Deque<T>
{
T[] array;
int front, cap;
public int Count;
public T this[long i]
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get { return array[GetIndex((int)i)]; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
set { array[GetIndex((int)i)] = value; }
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_Deque(long cap = 16)
{
array = new T[this.cap = (int)cap];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
int GetIndex(int i)
{
if (i >= cap) throw new Exception();
var r = front + i;
return r >= cap ? r - cap : r;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void PushFront(T x)
{
if (Count == cap) Extend();
if (--front < 0) front += array.Length;
array[front] = x;
++Count;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public T PopFront()
{
if (Count-- == 0) throw new Exception();
var r = array[front++];
if (front >= cap) front -= cap;
return r;
}
public T Front => array[front];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void PushBack(T x)
{
if (Count == cap) Extend();
var i = front + Count++;
array[i >= cap ? i - cap : i] = x;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public T PopBack()
{
if (Count == 0) throw new Exception();
return array[GetIndex(--Count)];
}
public T Back => array[GetIndex(Count - 1)];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
void Extend()
{
T[] nb = new T[cap << 1];
if (front > cap - Count)
{
var l = array.Length - front; Array.Copy(array, front, nb, 0, l);
Array.Copy(array, 0, nb, l, Count - l);
}
else Array.Copy(array, front, nb, 0, Count);
array = nb; front = 0; cap <<= 1;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Insert(long i, T x)
{
if (i > Count) throw new Exception();
this.PushFront(x);
for (int j = 0; j < i; j++) this[j] = this[j + 1];
this[i] = x;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public T RemoveAt(long i)
{
if (i < 0 || i >= Count) throw new Exception();
var r = this[i];
for (var j = i; j > 0; j--) this[j] = this[j - 1];
this.PopFront();
return r;
}
}
class LIB_FastIO
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_FastIO() { str = Console.OpenStandardInput(); }
readonly Stream str;
readonly byte[] buf = new byte[2048];
int len, ptr;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
byte read()
{
if (ptr >= len)
{
ptr = 0;
if ((len = str.Read(buf, 0, 2048)) <= 0)
{
return 0;
}
}
return buf[ptr++];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
char Char()
{
byte b = 0;
do b = read();
while (b < 33 || 126 < b);
return (char)b;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public string Scan()
{
var sb = new StringBuilder();
for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
sb.Append(b);
return sb.ToString();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public long Long()
{
long ret = 0; byte b = 0; var 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 << 3) + (ret << 1) + b - '0';
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }
}
class LIB_FastIODebug : LIB_FastIO
{
Queue<string> param = new Queue<string>();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
string NextString() { if (param.Count == 0) foreach (var item in Console.ReadLine().Split(' ')) param.Enqueue(item); return param.Dequeue(); }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_FastIODebug() { }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override string Scan() => NextString();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override long Long() => long.Parse(NextString());
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override double Double() => double.Parse(NextString());
}
}