結果
問題 | No.997 Jumping Kangaroo |
ユーザー | eSeF |
提出日時 | 2020-02-21 22:59:17 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 7,098 bytes |
コンパイル時間 | 1,208 ms |
コンパイル使用メモリ | 116,992 KB |
実行使用メモリ | 28,084 KB |
最終ジャッジ日時 | 2024-10-08 22:43:36 |
合計ジャッジ時間 | 3,049 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(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 | 26 ms
23,816 KB |
testcase_01 | AC | 25 ms
24,064 KB |
testcase_02 | AC | 27 ms
28,084 KB |
testcase_03 | AC | 26 ms
25,852 KB |
testcase_04 | AC | 26 ms
24,020 KB |
testcase_05 | AC | 26 ms
23,804 KB |
testcase_06 | AC | 26 ms
23,936 KB |
testcase_07 | AC | 25 ms
23,688 KB |
testcase_08 | AC | 25 ms
25,788 KB |
testcase_09 | AC | 26 ms
26,320 KB |
testcase_10 | AC | 26 ms
23,884 KB |
testcase_11 | AC | 26 ms
24,112 KB |
testcase_12 | AC | 26 ms
24,060 KB |
testcase_13 | AC | 26 ms
23,860 KB |
testcase_14 | AC | 26 ms
24,136 KB |
testcase_15 | AC | 26 ms
24,024 KB |
testcase_16 | AC | 25 ms
23,680 KB |
testcase_17 | AC | 26 ms
26,108 KB |
testcase_18 | AC | 24 ms
21,948 KB |
testcase_19 | AC | 26 ms
26,196 KB |
testcase_20 | AC | 25 ms
23,808 KB |
testcase_21 | AC | 26 ms
24,000 KB |
testcase_22 | AC | 25 ms
23,812 KB |
testcase_23 | AC | 25 ms
23,680 KB |
testcase_24 | AC | 25 ms
23,944 KB |
testcase_25 | AC | 25 ms
23,772 KB |
testcase_26 | AC | 25 ms
24,236 KB |
testcase_27 | AC | 25 ms
23,812 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.Text; using static System.Math; using static System.Array; using static AtCoder.Tool; using static AtCoder.CalcL; namespace AtCoder { class AC { const long MOD = 1000000007; //const int MOD = 998244353; const int INF = int.MaxValue / 2; const long SINF = long.MaxValue / 2; const double EPS = 1e-8; static readonly int[] dI = { 0, 1, 0, -1 }; static readonly int[] dJ = { 1, 0, -1, 0 }; static List<List<int>> G = new List<List<int>>(); //static List<List<Edge>>G = new List<List<Edge>>(); //static List<Edge> E = new List<Edge>(); static void Main(string[] args) { //var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; //Console.SetOut(sw); var cin = new Scanner(); var input = cin.ReadSplitLong(); var N = input[0]; var W = input[1]; var K = input[2]; var A = cin.ReadSplitInt(); var dp = new long[2 * W + 1]; dp[0] = 1; for(var i = 0; i <= 2 * W - 1; i++) { for(var j = 0; j < N; j++) { if (i + A[j] <= 2 * W) { dp[i + A[j]] += dp[i]; dp[i + A[j]] %= MOD; } } } //Console.WriteLine(string.Join(",", dp)); var a = dp[W]; var b = (dp[2 * W] - (a * a) % MOD + MOD) % MOD; //Console.WriteLine($"{a} {b}"); if (K == 1) { Console.WriteLine(dp[W]);return; } var R = new long[2][]; R[0] = new long[2]; R[1] = new long[2]; R[0][0] = a;R[0][1] = b; R[1][0] = 1;R[1][1] = 0; R = MutPow(R, K - 1); long ans = 0; ans += (dp[W] % MOD) * R[0][0] % MOD; ans %= MOD; ans += R[0][1]; ans %= MOD; Console.WriteLine(ans); //Console.Out.Flush(); } static long[][] MutMul(long[][] A, long[][] B) { var ret = new long[2][]; for(var i = 0; i < 2; i++) { ret[i] = new long[2]; for(var j = 0; j < 2; j++) { ret[i][j] = 0; for(var k = 0; k < 2; k++) { ret[i][j] += (A[i][k] * B[k][j]); ret[i][j] %= MOD; } } } return ret; } static long[][]MutPow(long[][]A,long n) { var B = new long[2][]; B[0] = new long[2]; B[1] = new long[2]; B[0][0] = B[1][1] = 1; while (n > 0) { if ((n & 1) != 0) B = MutMul(A, B); A = MutMul(A, A); n >>= 1; } return B; } struct Edge { public int from; public int to; public long dist; public Edge(int t, long c) { from = -1; to = t; dist = c; } public Edge(int f, int t, long c) { from = f; to = t; dist = c; } } } public class Scanner { public int[] ReadSplitInt() { return ConvertAll(Console.ReadLine().Split(), int.Parse); } public long[] ReadSplitLong() { return ConvertAll(Console.ReadLine().Split(), long.Parse); } public double[] ReadSplit_Double() { return ConvertAll(Console.ReadLine().Split(), double.Parse); } } public static class Tool { static public void Initialize<T>(ref T[] array, T initialvalue) { for (var i = 0; i < array.Length; i++) { array[i] = initialvalue; } } static public void Swap<T>(ref T a, ref T b) { T keep = a; a = b; b = keep; } static public void Display<T>(T[,] array2d, int n, int m) { for (var i = 0; i < n; i++) { for (var j = 0; j < m; j++) { Console.Write($"{array2d[i, j]} "); } Console.WriteLine(); } } static public long LPow(int a, int b) { return (long)Pow(a, b); } } static public class CalcI { public static int Gcd(int a, int b) { if (a * b == 0) { return Max(a, b); } return a % b == 0 ? b : Gcd(b, a % b); } public static int Lcm(int a, int b) { int g = Gcd(a, b); return a / g * b; } public static int Ceil(int n, int div) { return (n + div - 1) / div; } } static public class CalcL { public static long Gcd(long a, long b) { if (a * b == 0) { return Max(a, b); } return a % b == 0 ? b : Gcd(b, a % b); } public static long Lcm(long a, long b) { long g = Gcd(a, b); return a / g * b; } public static long Ceil(long n, long div) { return (n + div - 1) / div; } } class Modulo { private const long M = 1000000007; //private const int M = 998244353; private readonly long[] m_facs; public long Mul(long a, long b) { return ((a * b) % M); } public Modulo(long n) { m_facs = new long[n + 1]; m_facs[0] = 1; for (long i = 1; i <= n; ++i) { m_facs[i] = Mul(m_facs[i - 1], i); } } public long Fac(long n) { return m_facs[n]; } public long Pow(long a, long m) { switch (m) { case 0: return 1L; case 1: return a; default: long p1 = Pow(a, m / 2); long p2 = Mul(p1, p1); return ((m % 2) == 0) ? p2 : Mul(p2, a); } } public long Div(long a, long b) { return Mul(a, Pow(b, M - 2)); } public long Ncr(long n, long r) { if (n < r) { return 0; } if (n == r) { return 1; } long res = Fac(n); res = Div(res, Fac(r)); res = Div(res, Fac(n - r)); return res; } public Modulo() { } } }