結果
問題 | No.352 カード並べ |
ユーザー | りあん |
提出日時 | 2016-03-18 13:15:42 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 22 ms / 2,000 ms |
コード長 | 6,257 bytes |
コンパイル時間 | 1,134 ms |
コンパイル使用メモリ | 115,920 KB |
実行使用メモリ | 19,072 KB |
最終ジャッジ日時 | 2024-10-01 09:07:16 |
合計ジャッジ時間 | 1,901 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 21 ms
18,816 KB |
testcase_01 | AC | 22 ms
18,944 KB |
testcase_02 | AC | 21 ms
18,944 KB |
testcase_03 | AC | 22 ms
18,944 KB |
testcase_04 | AC | 20 ms
18,816 KB |
testcase_05 | AC | 20 ms
18,816 KB |
testcase_06 | AC | 21 ms
19,072 KB |
testcase_07 | AC | 20 ms
18,688 KB |
testcase_08 | AC | 21 ms
18,816 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 System.IO.Compression; using System.Text; namespace Solver { class Program { const int M = 1000000007; const double eps = 1e-9; static int[] dd = { 0, 1, 0, -1, 0 }; static void Main() { var sw = new System.IO.StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; var sc = new Scan(); int n = sc.Int; double ans = 1.0; for (int i = 1; i < n; i++) { int sum = i; for (int j = 1; j <= i; j++) for (int k = j + 1; k <= i; k++) sum += j * k; ans += sum * 2.0 / (i * (i + 1)); } sw.WriteLine(ans); sw.Flush(); } static void swap<T>(ref T a, ref T b) { var t = a; a = b; b = t; } static bool isprime(long n) { if (n == 1) return false; for (long i = 2; i * i <= n; i++) if (n % i == 0) return false; return true; } static string strsort(string s) { var c = s.ToCharArray(); Array.Sort(c); return string.Join("", c); } static string strswap(string s, int i, int j) { var c = s.ToCharArray(); c[i] = s[j]; c[j] = s[i]; return string.Join("", c); } static T[] copy<T>(T[] a) { var ret = new T[a.Length]; for (int i = 0; i < a.Length; i++) ret[i] = a[i]; return ret; } } class Scan { public int Int { get { return int.Parse(Console.ReadLine().Trim()); } } public long Long { get { return long.Parse(Console.ReadLine().Trim()); } } public string Str { get { return Console.ReadLine().Trim(); } } public int[] IntArr { get { return Console.ReadLine().Trim().Split().Select(int.Parse).ToArray(); } } public int[] IntArrWithSep(char sep) { return Console.ReadLine().Trim().Split(sep).Select(int.Parse).ToArray(); } public long[] LongArr { get { return Console.ReadLine().Trim().Split().Select(long.Parse).ToArray(); } } public double[] DoubleArr { get { return Console.ReadLine().Split().Select(double.Parse).ToArray(); } } public string[] StrArr { get { return Console.ReadLine().Trim().Split(); } } public List<int> IntList { get { return Console.ReadLine().Trim().Split().Select(int.Parse).ToList(); } } public List<long> LongList { get { return Console.ReadLine().Trim().Split().Select(long.Parse).ToList(); } } public void Multi(out int a, out int b) { var arr = IntArr; a = arr[0]; b = arr[1]; } public void Multi(out int a, out int b, out int c) { var arr = IntArr; a = arr[0]; b = arr[1]; c = arr[2]; } public void Multi(out int a, out int b, out int c, out int d) { var arr = IntArr; a = arr[0]; b = arr[1]; c = arr[2]; d = arr[3]; } public void Multi(out int a, out string b) { var arr = StrArr; a = int.Parse(arr[0]); b = arr[1]; } public void Multi(out string a, out int b) { var arr = StrArr; a = arr[0]; b = int.Parse(arr[1]); } public void Multi(out int a, out int b, out string c) { var arr = StrArr; a = int.Parse(arr[0]); b = int.Parse(arr[1]); c = arr[2]; } public void Multi(out int a, out char b) { var arr = StrArr; a = int.Parse(arr[0]); b = arr[1][0]; } public void Multi(out char a, out int b) { var arr = StrArr; a = arr[0][0]; b = int.Parse(arr[1]); } public void Multi(out long a, out long b) { var arr = LongArr; a = arr[0]; b = arr[1]; } public void Multi(out long a, out int b) { var arr = LongArr; a = arr[0]; b = (int)arr[1]; } public void Multi(out int a, out long b) { var arr = LongArr; a = (int)arr[0]; b = arr[1]; } public void Multi(out string a, out string b) { var arr = StrArr; a = arr[0]; b = arr[1]; } } class mymath { public bool isprime(long a) { if (a < 2) return false; for (long i = 2; i * i <= a; i++) if (a % i == 0) return false; return true; } public long[][] powmat(long[][] A, int n, int M) { var E = new long[A.Length][]; for (int i = 0; i < A.Length; i++) { E[i] = new long[A.Length]; E[i][i] = 1; } if (n == 0) return E; var t = powmat(A, n / 2, M); if ((n & 1) == 0) return mulmat(t, t, M); else return mulmat(mulmat(t, t, M), A, M); } public long[] mulmat(long[][] A, long[] x, int M) { var ans = new long[A.Length]; for (int i = 0; i < A.Length; i++) for (int j = 0; j < x.Length; j++) ans[i] = (ans[i] + x[j] * A[i][j]) % M; return ans; } public long[][] mulmat(long[][] A, long[][] B, int M) { var ans = new long[A.Length][]; for (int i = 0; i < A.Length; i++) { ans[i] = new long[B[0].Length]; for (int j = 0; j < B[0].Length; j++) for (int k = 0; k < A[0].Length; k++) ans[i][j] = (ans[i][j] + A[i][k] * B[k][j]) % M; } return ans; } public long powmod(long a, long b, long M) { if (a == 0) return 0; if (b == 0) return 1; if (b == 1) return a % M; var t = powmod(a, b / 2, M); if ((b & 1) == 0) return t * t % M; else return t * t % M * a % M; } public long gcd(long a, long b) { while (b != 0) { var t = a % b; a = b; b = t; } return a; } public long lcm(int a, int b) { return a * (long)b / gcd(a, b); } } }