結果
| 問題 | No.168 ものさし |
| ユーザー |
 紙ぺーぱー
|
| 提出日時 | 2015-05-03 20:12:17 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 622 ms / 2,000 ms |
| コード長 | 7,598 bytes |
| コンパイル時間 | 940 ms |
| コンパイル使用メモリ | 112,000 KB |
| 実行使用メモリ | 45,820 KB |
| 最終ジャッジ日時 | 2024-06-06 14:57:39 |
| 合計ジャッジ時間 | 6,302 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge1 |
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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 | 104 ms
26,496 KB |
| testcase_01 | AC | 21 ms
17,536 KB |
| testcase_02 | AC | 22 ms
17,664 KB |
| testcase_03 | AC | 21 ms
17,536 KB |
| testcase_04 | AC | 21 ms
17,536 KB |
| testcase_05 | AC | 21 ms
17,408 KB |
| testcase_06 | AC | 20 ms
17,536 KB |
| testcase_07 | AC | 21 ms
17,408 KB |
| testcase_08 | AC | 21 ms
17,536 KB |
| testcase_09 | AC | 23 ms
17,920 KB |
| testcase_10 | AC | 27 ms
18,944 KB |
| testcase_11 | AC | 92 ms
25,728 KB |
| testcase_12 | AC | 402 ms
37,888 KB |
| testcase_13 | AC | 606 ms
45,312 KB |
| testcase_14 | AC | 604 ms
44,928 KB |
| testcase_15 | AC | 21 ms
17,536 KB |
| testcase_16 | AC | 22 ms
17,920 KB |
| testcase_17 | AC | 24 ms
18,304 KB |
| testcase_18 | AC | 33 ms
19,840 KB |
| testcase_19 | AC | 575 ms
44,544 KB |
| testcase_20 | AC | 608 ms
45,696 KB |
| testcase_21 | AC | 609 ms
45,440 KB |
| testcase_22 | AC | 622 ms
45,820 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.Linq;
using System.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
namespace Program
{
public class Solver
{
public void Solve()
{
var n = sc.Integer();
var x = new long[n];
var y = new long[n];
for (int i = 0; i < n; i++)
{
x[i] = sc.Integer();
y[i] = sc.Integer();
}
var dp = new long[n];
for (int i = 0; i < n; i++)
dp[i] = long.MaxValue;
var pq = new PriorityQueue<KeyValuePair<int, long>>((u, v) => u.Value.CompareTo(v.Value));
pq.Enqueue(new KeyValuePair<int, long>(0, 0));
while (pq.Any())
{
var p = pq.Dequeue();
if (dp[p.Key] != long.MaxValue)
continue;
dp[p.Key] = p.Value;
Debug.WriteLine(p);
for (int i = 0; i < n; i++)
{
if (dp[i] != long.MaxValue)
continue;
var dx = x[i] - x[p.Key];
var dy = y[i] - y[p.Key];
pq.Enqueue(new KeyValuePair<int, long>(i, Math.Max(dp[p.Key], dx * dx + dy * dy)));
}
}
long l = 0, r = 1L << 32;
var ptr = 0;
while (l <= r && ptr < 100)
{
var m = (l + r) >> 1;
var len = m * m;
if (len < dp[n - 1])
l = m + 1;
else r = m - 1;
}
var ans = l;
if (l % 10 > 0) ans = ans + 10 - ans % 10;
IO.Printer.Out.WriteLine(ans);
}
public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; }
static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
}
}
#region Ex
namespace Program.IO
{
using System.IO;
using System.Text;
using System.Globalization;
public class Printer : StreamWriter
{
static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }
public static Printer Out { get; set; }
public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }
public void Write<T>(string format, IEnumerable<T> source) { base.Write(format, source.OfType<object>().ToArray()); }
public void WriteLine<T>(string format, IEnumerable<T> source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
}
public class StreamScanner
{
public StreamScanner(Stream stream) { str = stream; }
public readonly Stream str;
private readonly byte[] buf = new byte[1024];
private int len, ptr;
public bool isEof = false;
public bool IsEndOfStream { get { return isEof; } }
private byte read()
{
if (isEof) return 0;
if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }
return buf[ptr++];
}
public char Char() { byte b = 0; do b = read(); while (b < 33 || 126 < b); return (char)b; }
public string Scan()
{
var sb = new StringBuilder();
for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
sb.Append(b);
return sb.ToString();
}
public long Long()
{
if (isEof) return long.MinValue;
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 * 10 + b - '0';
}
}
public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }
public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }
private T[] enumerate<T>(int n, Func<T> f)
{
var a = new T[n];
for (int i = 0; i < n; ++i) a[i] = f();
return a;
}
public char[] Char(int n) { return enumerate(n, Char); }
public string[] Scan(int n) { return enumerate(n, Scan); }
public double[] Double(int n) { return enumerate(n, Double); }
public int[] Integer(int n) { return enumerate(n, Integer); }
public long[] Long(int n) { return enumerate(n, Long); }
}
}
static class Ex
{
static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }
static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }
static public void Main()
{
var solver = new Program.Solver();
solver.Solve();
Program.IO.Printer.Out.Flush();
}
}
#endregion
#region PriorityQueue and PairingHeap
public class PriorityQueue<T>
{
PairingHeap<T> top;
Comparison<T> compare;
int size;
public int Count { get { return size; } }
public PriorityQueue() : this(Comparer<T>.Default) { }
public PriorityQueue(Comparison<T> comparison) { compare = comparison; }
public PriorityQueue(IComparer<T> comparer) { compare = comparer.Compare; }
public void Enqueue(T item)
{
var heap = new PairingHeap<T>(item);
top = PairingHeap<T>.Merge(top, heap, compare);
size++;
}
public T Dequeue()
{
var ret = top.Key;
size--;
top = PairingHeap<T>.Pop(top, compare);
return ret;
}
public bool Any() { return size > 0; }
public T Peek() { return top.Key; }
}
#region PairingHeap
public class PairingHeap<T>
{
public PairingHeap(T k) { key = k; }
private readonly T key;
public T Key { get { return key; } }
private PairingHeap<T> head;
private PairingHeap<T> next;
static public PairingHeap<T> Pop(PairingHeap<T> s, Comparison<T> compare)
{
return MergeLst(s.head, compare);
}
static public PairingHeap<T> Merge(PairingHeap<T> l, PairingHeap<T> r, Comparison<T> compare)
{
if (l == null || r == null) return l == null ? r : l;
if (compare(l.key, r.key) > 0) Swap(ref l, ref r);
r.next = l.head;
l.head = r;
return l;
}
static public PairingHeap<T> MergeLst(PairingHeap<T> s, Comparison<T> compare)
{
var n = new PairingHeap<T>(default(T));
while (s != null)
{
PairingHeap<T> a = s, b = null;
s = s.next; a.next = null;
if (s != null) { b = s; s = s.next; b.next = null; }
a = Merge(a, b, compare); a.next = n.next;
n.next = a;
}
while (n.next != null)
{
var j = n.next;
n.next = n.next.next;
s = Merge(j, s, compare);
}
return s;
}
static void Swap(ref PairingHeap<T> l, ref PairingHeap<T> r) { var t = l; l = r; r = t; }
}
#endregion
#endregion