CODE FESTIVAL 2016 Final

Submission #1914191

Source codeソースコード

#include <bits/stdc++.h>

using namespace std;

const int mod = 1e9 + 7;

int N, M;
int dp[301][301][301];

int rec(int step, int sc1, int out)
{
  if(step == M) return (sc1 == N);
  if(~dp[step][sc1][out]) return (dp[step][sc1][out]);
  int ret = 0;
  if(sc1 + out + 1 <= N) {
    (ret += 1LL * rec(step + 1, sc1, out + 1) * (N - sc1 - out) % mod) %= mod;
  }
  if(out > 0) {
    (ret += 1LL * rec(step + 1, sc1, out) * out % mod) %= mod;
  }
  (ret += 1LL * rec(step + 1, sc1 + out, 0) * sc1 % mod) %= mod;
  return (dp[step][sc1][out] = ret);
}

int main()
{
  cin >> N >> M;
  memset(dp, -1, sizeof(dp));
  cout << rec(0, 1, 0) << endl;
}

Submission

Task問題 F - Road of the King
User nameユーザ名 タプリスちゃん
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1000
Source lengthソースコード長 671 Byte
File nameファイル名
Exec time実行時間 182 ms
Memory usageメモリ使用量 106752 KB

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt,sample-03.txt
all 1000 / 1000 sample-01.txt,sample-02.txt,sample-03.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt,sample-01.txt,sample-02.txt,sample-03.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt AC 28 ms 106752 KB
01-02.txt AC 28 ms 106752 KB
01-03.txt AC 28 ms 106752 KB
01-04.txt AC 28 ms 106752 KB
01-05.txt AC 28 ms 106752 KB
01-06.txt AC 61 ms 106752 KB
01-07.txt AC 181 ms 106752 KB
01-08.txt AC 182 ms 106752 KB
01-09.txt AC 182 ms 106752 KB
01-10.txt AC 182 ms 106752 KB
sample-01.txt AC 28 ms 106752 KB
sample-02.txt AC 104 ms 106752 KB
sample-03.txt AC 47 ms 106752 KB