結果

問題 No.732 3PrimeCounting
ユーザー claw88claw88
提出日時 2018-09-20 11:54:30
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 1,740 ms / 3,000 ms
コード長 3,225 bytes
コンパイル時間 835 ms
コンパイル使用メモリ 113,288 KB
実行使用メモリ 26,288 KB
最終ジャッジ日時 2024-07-18 08:31:03
合計ジャッジ時間 22,454 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(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 23 ms
24,252 KB
testcase_01 AC 22 ms
25,904 KB
testcase_02 AC 23 ms
23,872 KB
testcase_03 AC 22 ms
26,044 KB
testcase_04 AC 22 ms
23,740 KB
testcase_05 AC 22 ms
26,052 KB
testcase_06 AC 22 ms
23,988 KB
testcase_07 AC 22 ms
23,988 KB
testcase_08 AC 22 ms
23,868 KB
testcase_09 AC 22 ms
23,876 KB
testcase_10 AC 22 ms
23,992 KB
testcase_11 AC 21 ms
23,996 KB
testcase_12 AC 24 ms
26,032 KB
testcase_13 AC 23 ms
21,936 KB
testcase_14 AC 24 ms
23,752 KB
testcase_15 AC 23 ms
23,992 KB
testcase_16 AC 23 ms
23,864 KB
testcase_17 AC 22 ms
23,996 KB
testcase_18 AC 21 ms
23,864 KB
testcase_19 AC 22 ms
24,112 KB
testcase_20 AC 23 ms
24,156 KB
testcase_21 AC 25 ms
25,972 KB
testcase_22 AC 25 ms
26,032 KB
testcase_23 AC 23 ms
26,028 KB
testcase_24 AC 22 ms
23,732 KB
testcase_25 AC 28 ms
23,992 KB
testcase_26 AC 26 ms
24,112 KB
testcase_27 AC 23 ms
25,948 KB
testcase_28 AC 23 ms
24,156 KB
testcase_29 AC 25 ms
21,684 KB
testcase_30 AC 24 ms
25,824 KB
testcase_31 AC 24 ms
21,936 KB
testcase_32 AC 26 ms
23,836 KB
testcase_33 AC 27 ms
23,964 KB
testcase_34 AC 27 ms
25,900 KB
testcase_35 AC 26 ms
26,000 KB
testcase_36 AC 26 ms
26,128 KB
testcase_37 AC 23 ms
23,992 KB
testcase_38 AC 23 ms
23,992 KB
testcase_39 AC 26 ms
23,828 KB
testcase_40 AC 25 ms
23,864 KB
testcase_41 AC 24 ms
25,908 KB
testcase_42 AC 25 ms
26,044 KB
testcase_43 AC 25 ms
24,176 KB
testcase_44 AC 24 ms
25,968 KB
testcase_45 AC 23 ms
25,952 KB
testcase_46 AC 22 ms
23,860 KB
testcase_47 AC 24 ms
26,084 KB
testcase_48 AC 31 ms
21,812 KB
testcase_49 AC 30 ms
23,856 KB
testcase_50 AC 24 ms
21,940 KB
testcase_51 AC 24 ms
22,196 KB
testcase_52 AC 22 ms
26,072 KB
testcase_53 AC 49 ms
23,852 KB
testcase_54 AC 598 ms
24,152 KB
testcase_55 AC 606 ms
24,380 KB
testcase_56 AC 601 ms
24,636 KB
testcase_57 AC 121 ms
21,800 KB
testcase_58 AC 121 ms
25,904 KB
testcase_59 AC 54 ms
21,936 KB
testcase_60 AC 178 ms
23,844 KB
testcase_61 AC 179 ms
23,848 KB
testcase_62 AC 789 ms
24,504 KB
testcase_63 AC 331 ms
23,984 KB
testcase_64 AC 224 ms
23,984 KB
testcase_65 AC 225 ms
24,104 KB
testcase_66 AC 23 ms
24,120 KB
testcase_67 AC 23 ms
23,876 KB
testcase_68 AC 681 ms
24,508 KB
testcase_69 AC 683 ms
24,380 KB
testcase_70 AC 607 ms
24,504 KB
testcase_71 AC 632 ms
24,624 KB
testcase_72 AC 312 ms
21,936 KB
testcase_73 AC 1,266 ms
25,020 KB
testcase_74 AC 1,264 ms
25,016 KB
testcase_75 AC 31 ms
24,252 KB
testcase_76 AC 663 ms
24,344 KB
testcase_77 AC 127 ms
23,976 KB
testcase_78 AC 980 ms
24,764 KB
testcase_79 AC 694 ms
26,288 KB
testcase_80 AC 863 ms
24,780 KB
testcase_81 AC 611 ms
24,252 KB
testcase_82 AC 23 ms
22,068 KB
testcase_83 AC 123 ms
25,888 KB
testcase_84 AC 139 ms
23,980 KB
testcase_85 AC 506 ms
24,196 KB
testcase_86 AC 894 ms
24,884 KB
testcase_87 AC 1,726 ms
25,244 KB
testcase_88 AC 1,740 ms
25,276 KB
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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

diff #

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
//using System.Text;
//using System.Text.RegularExpressions;
//using System.Globalization;
//using System.Diagnostics;
using static System.Console;
//using System.Numerics;
//using static System.Math;
//using pair = Pair<int, int>;

class Program
{
    static void Main()
    {
        //SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });
        new Program().solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    readonly int[] dd = { 0, 1, 0, -1, 0 }; //→↓←↑
    readonly int mod = 1000000007;
    void chmax<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? b : a; }
    void chmin<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? a : b; }

    void solve()
    {
        int N = cin.nextint;
        eratos(3 * N);
        var cnt = new long[2 * N];
        long ans = 0;

        int b = 3;
        foreach (var c in prime)
        {
            if (c > N) break;
            if (c < 5) continue;
            foreach (var a in prime)
            {
                if (a == b) break;
                cnt[a + b]++;
            }
            foreach (var abc in prime)
            {
                int ab = abc - c;
                if (5 <= ab && ab < cnt.Length)
                {
                    ans += cnt[ab];
                }
            }
            b = c;
        }

        WriteLine(ans);
    }


    List<int> prime;
    bool[] is_prime;
    void eratos(int n)
    {
        prime = new List<int>();
        is_prime = new bool[n + 1];
        for (int i = 0; i <= n; i++) is_prime[i] = true;
        is_prime[0] = is_prime[1] = false;
        for (int i = 0; i <= n; i++)
        {
            if (is_prime[i])
            {
                prime.Add(i);
                for (int j = 2 * i; j <= n; j += i) is_prime[j] = false;
            }
        }
    }
    int[] P;
    void phi(int n)
    {
        P = new int[n + 1];
        for (int i = 0; i <= n; i++) P[i] = i;
        for (int i = 2; i <= n; i++)
        {
            if (is_prime[i])
            {
                P[i] -= P[i] / i;
                for (int j = 2 * i; j <= n; j += i) P[j] -= P[j] / i;
            }
        }
    }
}

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); } }
}
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