結果
問題 | No.491 10^9+1と回文 |
ユーザー |
|
提出日時 | 2017-03-29 15:52:01 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 129 ms / 1,000 ms |
コード長 | 2,179 bytes |
コンパイル時間 | 832 ms |
コンパイル使用メモリ | 107,904 KB |
実行使用メモリ | 25,472 KB |
最終ジャッジ日時 | 2024-10-01 08:40:21 |
合計ジャッジ時間 | 6,223 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 103 |
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.Linq;using System.IO;using System.Globalization;using System.Diagnostics;using static System.Console;using Pair = System.Collections.Generic.KeyValuePair<int, int>;class Program{static void Main(){SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });new Program().Solve();Out.Flush();}Scanner cin = new Scanner();Random rnd = new Random();Stopwatch sw = new Stopwatch();readonly int[] dd = { 0, 1, 0, -1, 0 };readonly int mod = 1000000007;readonly string alfa = "abcdefghijklmnopqrstuvwxyz";int Z = 1000000001;void Solve(){long N = cin.Nextlong;long ans = 0;long S = N / Z;for (int i = 1; i <= 99999; i++){var d = ans;var v = i.ToString();var s = v;var t = v;v = new string(v.Reverse().ToArray());s += v;t += v.Substring(1);if (long.Parse(s) <= S) ans++;if (long.Parse(t) <= S) ans++;//WriteLine($"{i} {v} {s} {t}");if (ans == d) break;}WriteLine(ans);}}class Scanner{string[] s; int i;char[] cs = new char[] { ' ' };public Scanner() { s = new string[0]; i = 0; }public string[] Scan { get { return ReadLine().Split(); } }public int[] Scanint { get { return Array.ConvertAll(Scan, int.Parse); } }public long[] Scanlong { get { return Array.ConvertAll(Scan, long.Parse); } }public double[] Scandouble { get { return Array.ConvertAll(Scan, double.Parse); } }public string Next{get{if (i < s.Length) return s[i++];string st = ReadLine();while (st == "") st = ReadLine();s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);i = 0;return Next;}}public int Nextint { get { return int.Parse(Next); } }public long Nextlong { get { return long.Parse(Next); } }public double Nextdouble { get { return double.Parse(Next); } }}