結果
問題 | No.1847 Good Sequence |
ユーザー | mkawa2 |
提出日時 | 2024-06-21 18:24:42 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 227 ms / 3,000 ms |
コード長 | 1,944 bytes |
コンパイル時間 | 397 ms |
コンパイル使用メモリ | 82,220 KB |
実行使用メモリ | 76,580 KB |
最終ジャッジ日時 | 2024-06-21 18:24:48 |
合計ジャッジ時間 | 5,167 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 34 ms
52,880 KB |
testcase_01 | AC | 41 ms
62,472 KB |
testcase_02 | AC | 120 ms
76,136 KB |
testcase_03 | AC | 37 ms
60,064 KB |
testcase_04 | AC | 39 ms
61,268 KB |
testcase_05 | AC | 45 ms
59,876 KB |
testcase_06 | AC | 39 ms
60,860 KB |
testcase_07 | AC | 38 ms
61,368 KB |
testcase_08 | AC | 41 ms
62,656 KB |
testcase_09 | AC | 45 ms
64,280 KB |
testcase_10 | AC | 34 ms
53,136 KB |
testcase_11 | AC | 38 ms
60,904 KB |
testcase_12 | AC | 45 ms
63,088 KB |
testcase_13 | AC | 44 ms
63,308 KB |
testcase_14 | AC | 44 ms
62,848 KB |
testcase_15 | AC | 45 ms
65,132 KB |
testcase_16 | AC | 49 ms
67,740 KB |
testcase_17 | AC | 56 ms
71,400 KB |
testcase_18 | AC | 68 ms
75,912 KB |
testcase_19 | AC | 81 ms
76,084 KB |
testcase_20 | AC | 39 ms
62,056 KB |
testcase_21 | AC | 192 ms
76,164 KB |
testcase_22 | AC | 91 ms
75,952 KB |
testcase_23 | AC | 39 ms
62,504 KB |
testcase_24 | AC | 38 ms
61,348 KB |
testcase_25 | AC | 98 ms
76,204 KB |
testcase_26 | AC | 40 ms
61,156 KB |
testcase_27 | AC | 50 ms
71,096 KB |
testcase_28 | AC | 99 ms
75,868 KB |
testcase_29 | AC | 46 ms
67,680 KB |
testcase_30 | AC | 52 ms
70,032 KB |
testcase_31 | AC | 142 ms
76,124 KB |
testcase_32 | AC | 75 ms
76,108 KB |
testcase_33 | AC | 134 ms
75,856 KB |
testcase_34 | AC | 40 ms
61,668 KB |
testcase_35 | AC | 39 ms
59,928 KB |
testcase_36 | AC | 227 ms
76,180 KB |
testcase_37 | AC | 105 ms
76,056 KB |
testcase_38 | AC | 37 ms
53,228 KB |
testcase_39 | AC | 37 ms
53,148 KB |
testcase_40 | AC | 222 ms
76,580 KB |
ソースコード
import sys # sys.setrecursionlimit(200005) # sys.set_int_max_str_digits(200005) int1 = lambda x: int(x)-1 pDB = lambda *x: print(*x, end="\n", file=sys.stderr) p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr) def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def SI(): return sys.stdin.readline().rstrip() dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] # inf = -1-(-1 << 31) inf = -1-(-1 << 62) md = 10**9+7 # md = 998244353 def dot(aa, bb): h = len(aa) w = len(bb[0]) res = [[0]*w for _ in range(h)] for j, col in enumerate(zip(*bb)): for i in range(h): v = 0 # for a, b in zip(row, col): v += a*b # res[i][j] = v for a, b in zip(aa[i], col): v += a*b%md res[i][j] = v%md return res def matpow(mat, e): n = len(mat) res = [[1 if i == j else 0 for j in range(n)] for i in range(n)] while e: if e & 1: res = dot(res, mat) mat = dot(mat, mat) e >>= 1 return res L,N,M=LI() KK=LI() ac=[] ac2i={} for a in range(1,N+1): for c in range(1,a+2): ac2i[a,c]=len(ac) ac.append((a,c)) n=len(ac)+1 mat=[[0]*n for _ in range(n)] for i,(a,c) in enumerate(ac): for na in range(1,N+1): nc=1 if na==a:nc=min(a+1,c+1) j=ac2i[na,nc] mat[i][j]=1 for a in KK: i=ac2i[a,a] mat[i]=[0]*n mat[i][i+1]=1 mat[i][n-1]=N-1 mat[n-1][n-1]=N mat=matpow(mat,L-1) aa = [0]*n for a in range(1,1+N): i=ac2i[a,1] aa[i]=1 mat=dot([aa],mat) ans=mat[0][-1] for a in KK: i=ac2i[a,a] ans+=mat[0][i] ans%=md print(ans)