結果
問題 | No.599 回文かい |
ユーザー | sibasyun |
提出日時 | 2023-12-15 13:12:52 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,149 bytes |
コンパイル時間 | 329 ms |
コンパイル使用メモリ | 13,440 KB |
実行使用メモリ | 76,956 KB |
最終ジャッジ日時 | 2024-09-27 06:17:01 |
合計ジャッジ時間 | 6,946 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 32 ms
11,392 KB |
testcase_01 | AC | 31 ms
11,520 KB |
testcase_02 | AC | 32 ms
11,520 KB |
testcase_03 | AC | 32 ms
11,392 KB |
testcase_04 | AC | 35 ms
11,392 KB |
testcase_05 | AC | 47 ms
11,392 KB |
testcase_06 | AC | 33 ms
11,520 KB |
testcase_07 | AC | 34 ms
11,392 KB |
testcase_08 | AC | 32 ms
11,520 KB |
testcase_09 | AC | 37 ms
11,392 KB |
testcase_10 | AC | 67 ms
11,648 KB |
testcase_11 | AC | 71 ms
11,648 KB |
testcase_12 | AC | 152 ms
12,416 KB |
testcase_13 | AC | 247 ms
13,184 KB |
testcase_14 | TLE | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
evil_0.txt | -- | - |
ソースコード
import io import sys import bisect import math from itertools import permutations, combinations from heapq import heappush, heappop from collections import deque from collections import defaultdict as dd sys.setrecursionlimit(10**7+10) # mod = 998244353 mod = 10**9+7 _INPUT = """\ nkaibun """ class string: def sa_is(s,upper): n=len(s) if n==0: return [] if n==1: return [0] if n==2: if (s[0]<s[1]): return [0,1] else: return [1,0] sa=[0]*n ls=[0]*n for i in range(n-2,-1,-1): ls[i]=ls[i+1] if (s[i]==s[i+1]) else (s[i]<s[i+1]) sum_l=[0]*(upper+1) sum_s=[0]*(upper+1) for i in range(n): if not(ls[i]): sum_s[s[i]]+=1 else: sum_l[s[i]+1]+=1 for i in range(upper+1): sum_s[i]+=sum_l[i] if i<upper: sum_l[i+1]+=sum_s[i] def induce(lms): for i in range(n): sa[i]=-1 buf=sum_s[:] for d in lms: if d==n: continue sa[buf[s[d]]]=d buf[s[d]]+=1 buf=sum_l[:] sa[buf[s[n-1]]]=n-1 buf[s[n-1]]+=1 for i in range(n): v=sa[i] if v>=1 and not(ls[v-1]): sa[buf[s[v-1]]]=v-1 buf[s[v-1]]+=1 buf=sum_l[:] for i in range(n-1,-1,-1): v=sa[i] if v>=1 and ls[v-1]: buf[s[v-1]+1]-=1 sa[buf[s[v-1]+1]]=v-1 lms_map=[-1]*(n+1) m=0 for i in range(1,n): if not(ls[i-1]) and ls[i]: lms_map[i]=m m+=1 lms=[] for i in range(1,n): if not(ls[i-1]) and ls[i]: lms.append(i) induce(lms) if m: sorted_lms=[] for v in sa: if lms_map[v]!=-1: sorted_lms.append(v) rec_s=[0]*m rec_upper=0 rec_s[lms_map[sorted_lms[0]]]=0 for i in range(1,m): l=sorted_lms[i-1] r=sorted_lms[i] end_l=lms[lms_map[l]+1] if (lms_map[l]+1<m) else n end_r=lms[lms_map[r]+1] if (lms_map[r]+1<m) else n same=True if end_l-l!=end_r-r: same=False else: while(l<end_l): if s[l]!=s[r]: break l+=1 r+=1 if (l==n) or (s[l]!=s[r]): same=False if not(same): rec_upper+=1 rec_s[lms_map[sorted_lms[i]]]=rec_upper rec_sa=string.sa_is(rec_s,rec_upper) for i in range(m): sorted_lms[i]=lms[rec_sa[i]] induce(sorted_lms) return sa def suffix_array_upper(s,upper): assert 0<=upper for d in s: assert 0<=d and d<=upper return string.sa_is(s,upper) def suffix_array(s): n=len(s) if type(s)==str: s2=[ord(i) for i in s] return string.sa_is(s2,255) else: idx=list(range(n)) idx.sort(key=lambda x:s[x]) s2=[0]*n now=0 for i in range(n): if (i& s[idx[i-1]]!=s[idx[i]]): now+=1 s2[idx[i]]=now return string.sa_is(s2,now) def lcp_array(s,sa): n=len(s) assert n>=1 rnk=[0]*n for i in range(n): rnk[sa[i]]=i lcp=[0]*(n-1) h=0 for i in range(n): if h>0: h-=1 if rnk[i]==0: continue j=sa[rnk[i]-1] while(j+h<n and i+h<n): if s[j+h]!=s[i+h]: break h+=1 lcp[rnk[i]-1]=h return lcp def z_algorithm(s): n=len(s) if n==0: return [] z=[0]*n i=1;j=0 while(i<n): z[i]=0 if (j+z[j]<=i) else min(j+z[j]-i,z[i-j]) while((i+z[i]<n) and (s[z[i]]==s[i+z[i]])): z[i]+=1 if (j+z[j]<i+z[i]): j=i i+=1 z[0]=n return z def main(): T = input() N = len(T) dp = [-1 for _ in range(N+1)] # 区間l,rのときのケース数 def dfs(l): if dp[l] != -1: return dp[l] else: ret = 1 z = string.z_algorithm(T[l:N-l]) for i in range(1, N-2*l+1): if i*2>N-2*l:break if z[-i]==i: ret += dfs(l+i) ret %= mod dp[l] = ret return ret dfs(0) print(dp[0]%mod) if __name__ == "__main__": # sys.stdin = io.StringIO(_INPUT) main()