結果
問題 | No.491 10^9+1と回文 |
ユーザー |
|
提出日時 | 2017-03-10 23:12:39 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,269 bytes |
コンパイル時間 | 869 ms |
コンパイル使用メモリ | 113,112 KB |
実行使用メモリ | 30,336 KB |
最終ジャッジ日時 | 2024-06-24 08:34:10 |
合計ジャッジ時間 | 6,046 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 42 WA * 61 |
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 });//SetOut(new StreamWriter("out.txt"));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";long Z = 1000000001;void Solve(){long N = cin.Nextlong;int ans = 0;int cnt = 1;int d = 1;int k = 1;for (long i = Z; i <= N;){if (cnt >= k * 10){d = d * 10 + 1;k *= 10;}if (cnt % d == 0){ans++;//WriteLine(cnt);cnt += d;i += Z * d;}else{cnt++;i += Z;}}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); } }}