結果
問題 | No.644 G L C C D M |
ユーザー | claw88 |
提出日時 | 2018-02-02 23:19:35 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,470 bytes |
コンパイル時間 | 907 ms |
コンパイル使用メモリ | 108,160 KB |
実行使用メモリ | 20,224 KB |
最終ジャッジ日時 | 2024-06-10 01:34:08 |
合計ジャッジ時間 | 2,186 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(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 | 21 ms
18,816 KB |
testcase_01 | AC | 22 ms
19,072 KB |
testcase_02 | AC | 21 ms
19,072 KB |
testcase_03 | AC | 21 ms
18,944 KB |
testcase_04 | AC | 21 ms
18,816 KB |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | AC | 20 ms
18,816 KB |
testcase_10 | AC | 21 ms
18,816 KB |
testcase_11 | WA | - |
testcase_12 | AC | 21 ms
19,072 KB |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | AC | 21 ms
18,816 KB |
testcase_16 | AC | 21 ms
18,816 KB |
testcase_17 | AC | 21 ms
19,200 KB |
testcase_18 | AC | 23 ms
18,836 KB |
testcase_19 | AC | 21 ms
18,816 KB |
testcase_20 | AC | 21 ms
19,072 KB |
testcase_21 | AC | 21 ms
18,944 KB |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | AC | 23 ms
19,224 KB |
testcase_26 | AC | 23 ms
18,844 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.Collections.Generic; using System.Linq; using System.IO; using static System.Text.StringBuilder; 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 solve() { int N = cin.nextint; int M = cin.nextint; var A = Enumerable.Range(1, N).ToArray(); if (M > 1) { long cnt = N / M; long ans = cnt * (cnt - 1) % mod; for (int i = 1; i <= N - 2; i++) { ans *= i; ans %= mod; } WriteLine(ans); } else { var P = new long[N + 1]; var F = new long[N + 1]; for (int i = 0; i <= N; i++) { P[i] = 1; F[i] = i; } for (int i = 2; i <= N; i++) { if (P[i] > 0) { F[i] -= F[i] / i; for (int j = i + 1; j < N; j += i) { P[j] = 0; F[j] -= F[j] / i; } } } //WriteLine(string.Join(" ", F)); long sum = 0; for (int i = 2; i <= N; i++) { sum += F[i]; sum %= mod; } long ans = sum * 2 % mod; for (int i = 1; i <= N - 2; i++) { ans *= i; ans %= mod; } WriteLine(ans); } } long gcd(long a, long b) { return (b != 0) ? gcd(b, a % b) : a; } long lcm(long a, long b) { var d = gcd(a, b); return a / d * b; } //a^b(mod p) solution works in O(logb). long powmod(long a, long b, long p) { if (b == 0) return 1; if (b % 2 == 0) { long d = powmod(a, b / 2, p); return d * d % p; } else { return a % p * powmod(a, b - 1, p) % p; } } } 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); } } }