結果
問題 | No.93 ペガサス |
ユーザー | yaoshimax |
提出日時 | 2015-03-04 01:03:51 |
言語 | PyPy2 (7.3.15) |
結果 |
AC
|
実行時間 | 963 ms / 5,000 ms |
コード長 | 2,564 bytes |
コンパイル時間 | 765 ms |
コンパイル使用メモリ | 77,052 KB |
実行使用メモリ | 325,268 KB |
最終ジャッジ日時 | 2024-06-24 01:20:05 |
合計ジャッジ時間 | 7,808 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | 76 ms
75,168 KB |
testcase_01 | AC | 75 ms
75,524 KB |
testcase_02 | AC | 74 ms
75,780 KB |
testcase_03 | AC | 77 ms
75,396 KB |
testcase_04 | AC | 239 ms
116,900 KB |
testcase_05 | AC | 159 ms
91,552 KB |
testcase_06 | AC | 144 ms
88,356 KB |
testcase_07 | AC | 538 ms
213,980 KB |
testcase_08 | AC | 326 ms
142,360 KB |
testcase_09 | AC | 952 ms
319,640 KB |
testcase_10 | AC | 115 ms
79,224 KB |
testcase_11 | AC | 134 ms
84,648 KB |
testcase_12 | AC | 766 ms
278,048 KB |
testcase_13 | AC | 303 ms
133,528 KB |
testcase_14 | AC | 185 ms
99,040 KB |
testcase_15 | AC | 651 ms
254,980 KB |
testcase_16 | AC | 201 ms
103,844 KB |
testcase_17 | AC | 77 ms
75,556 KB |
testcase_18 | AC | 76 ms
75,440 KB |
testcase_19 | AC | 963 ms
325,268 KB |
ソースコード
N=int(raw_input()) mod=1000000007 dp=[[[[0 for i in range(2)] for j in range(2)] for k in range(N+1)] for l in range(N+2)] dp[1][0][0][0]=1 dp[2][0][0][0]=2 for i in range(2,N+1): for j in range(N+1): #if dp[i][j][0][0] >0 or dp[i][j][0][1] > 0 or dp[i][j][1][0]>0 or dp[i][j][1][1]>0: # print i,j, dp[i][j][0][0], dp[i][j][0][1],dp[i][j][1][0],dp[i][j][1][1] if dp[i][j][0][0]>0: dp[i+1][j][0][0]+=(i-1-j)*dp[i][j][0][0] dp[i+1][j][0][0]%=mod dp[i+1][j][0][1]+=2*dp[i][j][0][0] dp[i+1][j][0][1]%=mod if j-1>=0: dp[i+1][j-1][0][0]+=j*dp[i][j][0][0] dp[i+1][j-1][0][0]%=mod if dp[i][j][0][1]>0: # (i) (i-2) is adjacent, (i-1) (i-3) is not. insert i+1 in i+1 different positions dp[i+1][j][1][0]+=(i-2-j)*dp[i][j][0][1] dp[i+1][j][1][0]%=mod dp[i+1][j][1][1]+=2*dp[i][j][0][1] # next to (i-1), both side dp[i+1][j][1][1]%=mod # next to (i-1), both side dp[i+1][j][0][0]+=dp[i][j][0][1] # between (i) and (i-2) dp[i+1][j][0][0]%=mod # between (i) and (i-2) if j-1>=0: dp[i+1][j-1][1][0]+=j*dp[i][j][0][1] dp[i+1][j-1][1][0]%=mod if dp[i][j][1][0]>0: # (i-1) (i-3) is adjacent, (i) (i-2) is not, insert i+1 dp[i+1][j+1][0][0]+=(i-1-j)*dp[i][j][1][0] dp[i+1][j+1][0][0]%=mod dp[i+1][j+1][0][1]+=dp[i][j][1][0] # next to (i-1), opposite of (i-3) dp[i+1][j+1][0][1]%=mod # next to (i-1), opposite of (i-3) dp[i+1][j][0][1]+=dp[i][j][1][0] # between (i-1) and (i-3) dp[i+1][j][0][1]%=mod # between (i-1) and (i-3) if j-1>=0: dp[i+1][j][0][0]+=j*dp[i][j][1][0] dp[i+1][j][0][0]%=mod if dp[i][j][1][1]>0: # (i-1) (i-3) is adjacent, (i)(i-2) is adjacent dp[i+1][j+1][1][0]+=(i-2-j)*dp[i][j][1][1] dp[i+1][j+1][1][0]%=mod dp[i+1][j+1][1][1]+=dp[i][j][1][1] # next to (i-1), opposite of (i-3) dp[i+1][j+1][1][1]%=mod # next to (i-1), opposite of (i-3) dp[i+1][j][1][1]+=dp[i][j][1][1] # between (i-1) and (i-3) dp[i+1][j][1][1]%=mod # between (i-1) and (i-3) dp[i+1][j+1][0][0]+=dp[i][j][1][1] # between (i) and (i-2) dp[i+1][j+1][0][0]%=mod # between (i) and (i-2) if j-1>=0: dp[i+1][j][1][0]+=j*dp[i][j][1][1] dp[i+1][j][1][0]%=mod print dp[N][0][0][0]