結果
問題 | No.1702 count good string |
ユーザー | mkawa2 |
提出日時 | 2021-10-08 22:16:04 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 193 ms / 2,000 ms |
コード長 | 1,160 bytes |
コンパイル時間 | 288 ms |
コンパイル使用メモリ | 87,204 KB |
実行使用メモリ | 77,388 KB |
最終ジャッジ日時 | 2023-09-30 10:38:05 |
合計ジャッジ時間 | 8,962 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge15 |
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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 | 95 ms
71,768 KB |
testcase_01 | AC | 95 ms
71,708 KB |
testcase_02 | AC | 96 ms
71,832 KB |
testcase_03 | AC | 95 ms
71,696 KB |
testcase_04 | AC | 95 ms
71,832 KB |
testcase_05 | AC | 96 ms
71,680 KB |
testcase_06 | AC | 95 ms
71,776 KB |
testcase_07 | AC | 95 ms
71,668 KB |
testcase_08 | AC | 95 ms
71,596 KB |
testcase_09 | AC | 94 ms
71,504 KB |
testcase_10 | AC | 95 ms
71,292 KB |
testcase_11 | AC | 96 ms
71,748 KB |
testcase_12 | AC | 95 ms
71,712 KB |
testcase_13 | AC | 180 ms
77,336 KB |
testcase_14 | AC | 186 ms
77,344 KB |
testcase_15 | AC | 187 ms
77,288 KB |
testcase_16 | AC | 184 ms
77,260 KB |
testcase_17 | AC | 193 ms
77,324 KB |
testcase_18 | AC | 185 ms
77,016 KB |
testcase_19 | AC | 191 ms
77,004 KB |
testcase_20 | AC | 179 ms
77,028 KB |
testcase_21 | AC | 186 ms
77,320 KB |
testcase_22 | AC | 187 ms
77,200 KB |
testcase_23 | AC | 104 ms
77,136 KB |
testcase_24 | AC | 103 ms
77,076 KB |
testcase_25 | AC | 105 ms
76,936 KB |
testcase_26 | AC | 103 ms
76,932 KB |
testcase_27 | AC | 104 ms
77,012 KB |
testcase_28 | AC | 104 ms
76,884 KB |
testcase_29 | AC | 105 ms
76,988 KB |
testcase_30 | AC | 104 ms
77,088 KB |
testcase_31 | AC | 103 ms
77,176 KB |
testcase_32 | AC | 102 ms
77,060 KB |
testcase_33 | AC | 166 ms
77,140 KB |
testcase_34 | AC | 170 ms
76,948 KB |
testcase_35 | AC | 164 ms
77,388 KB |
testcase_36 | AC | 164 ms
77,228 KB |
testcase_37 | AC | 170 ms
77,212 KB |
testcase_38 | AC | 166 ms
77,212 KB |
testcase_39 | AC | 160 ms
77,108 KB |
testcase_40 | AC | 162 ms
77,132 KB |
testcase_41 | AC | 168 ms
77,128 KB |
testcase_42 | AC | 167 ms
77,220 KB |
testcase_43 | AC | 168 ms
77,100 KB |
testcase_44 | AC | 179 ms
77,288 KB |
testcase_45 | AC | 95 ms
71,468 KB |
testcase_46 | AC | 94 ms
71,580 KB |
testcase_47 | AC | 94 ms
71,288 KB |
testcase_48 | AC | 94 ms
71,752 KB |
testcase_49 | AC | 94 ms
71,584 KB |
ソースコード
import sys sys.setrecursionlimit(200005) int1 = lambda x: int(x)-1 p2D = lambda x: print(*x, sep="\n") def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] 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)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] inf = 10**19 # md = 998244353 md = 10**9+7 from collections import defaultdict n = II() s = SI() def cnt(s, t): n = len(t) dp = [0]*(n+1) ctoi = defaultdict(list) for i, c in enumerate(t): ctoi[c].append(i) dp[0] = 1 for c in s: for i in ctoi[c][::-1]: dp[i+1] += dp[i] dp[i+1] %= md return dp[-1] t = "yukicoder" tt = [t] for i in range(len(t)): nt = t[:i]+"?"+t[i+1:] tt.append(nt) # print(tt) ans = 0 for t in tt: ans += cnt(s, t) ans %= md print(ans)