結果

問題 No.2073 Concon Substrings (Swap Version)
ユーザー PandaPanda
提出日時 2022-09-16 23:03:44
言語 PyPy3
(7.3.8)
結果
AC  
実行時間 1,703 ms / 2,000 ms
コード長 16,668 bytes
コンパイル時間 301 ms
使用メモリ 272,224 KB
最終ジャッジ日時 2023-01-11 08:22:06
合計ジャッジ時間 35,996 ms
ジャッジサーバーID
(参考情報)
judge14 / judge11
このコードへのチャレンジ(β)

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
testcase_00 AC 269 ms
91,240 KB
testcase_01 AC 270 ms
91,236 KB
testcase_02 AC 270 ms
91,200 KB
testcase_03 AC 272 ms
91,188 KB
testcase_04 AC 275 ms
91,244 KB
testcase_05 AC 1,638 ms
269,736 KB
testcase_06 AC 1,611 ms
270,276 KB
testcase_07 AC 269 ms
91,204 KB
testcase_08 AC 1,157 ms
206,704 KB
testcase_09 AC 1,296 ms
257,820 KB
testcase_10 AC 1,587 ms
269,032 KB
testcase_11 AC 1,703 ms
266,616 KB
testcase_12 AC 273 ms
91,168 KB
testcase_13 AC 595 ms
99,512 KB
testcase_14 AC 1,368 ms
247,804 KB
testcase_15 AC 766 ms
117,588 KB
testcase_16 AC 1,219 ms
271,524 KB
testcase_17 AC 274 ms
91,208 KB
testcase_18 AC 377 ms
93,732 KB
testcase_19 AC 1,188 ms
271,712 KB
testcase_20 AC 898 ms
212,804 KB
testcase_21 AC 759 ms
173,780 KB
testcase_22 AC 1,222 ms
271,572 KB
testcase_23 AC 273 ms
91,028 KB
testcase_24 AC 331 ms
92,048 KB
testcase_25 AC 813 ms
192,092 KB
testcase_26 AC 1,201 ms
272,224 KB
testcase_27 AC 268 ms
91,172 KB
testcase_28 AC 997 ms
250,988 KB
testcase_29 AC 472 ms
108,820 KB
testcase_30 AC 1,144 ms
220,828 KB
testcase_31 AC 714 ms
124,736 KB
testcase_32 AC 558 ms
100,880 KB
testcase_33 AC 580 ms
105,112 KB
testcase_34 AC 583 ms
103,120 KB
testcase_35 AC 900 ms
168,436 KB
testcase_36 AC 638 ms
107,516 KB
testcase_37 AC 879 ms
160,072 KB
testcase_38 AC 593 ms
102,856 KB
testcase_39 AC 1,020 ms
181,348 KB
testcase_40 AC 885 ms
160,860 KB
testcase_41 AC 970 ms
181,484 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

###順序付き多重集合###

import math
from bisect import bisect_left, bisect_right, insort
from typing import Generic, Iterable, Iterator, TypeVar, Union, List
T = TypeVar('T')

class SortedMultiset(Generic[T]):
    BUCKET_RATIO = 50
    REBUILD_RATIO = 170

    def _build(self, a=None) -> None:
        "Evenly divide `a` into buckets."
        if a is None: a = list(self)
        size = self.size = len(a)
        bucket_size = int(math.ceil(math.sqrt(size / self.BUCKET_RATIO)))
        self.a = [a[size * i // bucket_size : size * (i + 1) // bucket_size] for i in range(bucket_size)]
    
    def __init__(self, a: Iterable[T] = []) -> None:
        "Make a new SortedMultiset from iterable. / O(N) if sorted / O(N log N)"
        a = list(a)
        if not all(a[i] <= a[i + 1] for i in range(len(a) - 1)):
            a = sorted(a)
        self._build(a)

    def __iter__(self) -> Iterator[T]:
        for i in self.a:
            for j in i: yield j

    def __reversed__(self) -> Iterator[T]:
        for i in reversed(self.a):
            for j in reversed(i): yield j
    
    def __len__(self) -> int:
        return self.size
    
    def __repr__(self) -> str:
        return "SortedMultiset" + str(self.a)
    
    def __str__(self) -> str:
        s = str(list(self))
        return "{" + s[1 : len(s) - 1] + "}"

    def _find_bucket(self, x: T) -> List[T]:
        "Find the bucket which should contain x. self must not be empty."
        for a in self.a:
            if x <= a[-1]: return a
        return a

    def __contains__(self, x: T) -> bool:
        if self.size == 0: return False
        a = self._find_bucket(x)
        i = bisect_left(a, x)
        return i != len(a) and a[i] == x

    def count(self, x: T) -> int:
        "Count the number of x."
        return self.index_right(x) - self.index(x)

    def add(self, x: T) -> None:
        "Add an element. / O(√N)"
        if self.size == 0:
            self.a = [[x]]
            self.size = 1
            return
        a = self._find_bucket(x)
        insort(a, x)
        self.size += 1
        if len(a) > len(self.a) * self.REBUILD_RATIO:
            self._build()

    def discard(self, x: T) -> bool:
        "Remove an element and return True if removed. / O(√N)"
        if self.size == 0: return False
        a = self._find_bucket(x)
        i = bisect_left(a, x)
        if i == len(a) or a[i] != x: return False
        a.pop(i)
        self.size -= 1
        if len(a) == 0: self._build()
        return True

    def lt(self, x: T) -> Union[T, None]:
        "Find the largest element < x, or None if it doesn't exist."
        for a in reversed(self.a):
            if a[0] < x:
                return a[bisect_left(a, x) - 1]

    def le(self, x: T) -> Union[T, None]:
        "Find the largest element <= x, or None if it doesn't exist."
        for a in reversed(self.a):
            if a[0] <= x:
                return a[bisect_right(a, x) - 1]

    def gt(self, x: T) -> Union[T, None]:
        "Find the smallest element > x, or None if it doesn't exist."
        for a in self.a:
            if a[-1] > x:
                return a[bisect_right(a, x)]

    def ge(self, x: T) -> Union[T, None]:
        "Find the smallest element >= x, or None if it doesn't exist."
        for a in self.a:
            if a[-1] >= x:
                return a[bisect_left(a, x)]
    
    def __getitem__(self, x: int) -> T:
        "Return the x-th element, or IndexError if it doesn't exist."
        if x < 0: x += self.size
        if x < 0: raise IndexError
        for a in self.a:
            if x < len(a): return a[x]
            x -= len(a)
        raise IndexError

    def index(self, x: T) -> int:
        "Count the number of elements < x."
        ans = 0
        for a in self.a:
            if a[-1] >= x:
                return ans + bisect_left(a, x)
            ans += len(a)
        return ans

    def index_right(self, x: T) -> int:
        "Count the number of elements <= x."
        ans = 0
        for a in self.a:
            if a[-1] > x:
                return ans + bisect_right(a, x)
            ans += len(a)
        return ans


###セグメントツリー###

#####segfunc#####
def segfunc(x, y):
    return x + y
    # 最小値    min(x, y) 
    # 最大値    max(x, y)
    # 区間和    x + y
    # 区間積    x * y
    # 最大公約数  math.gcd(x, y)
    # 排他的論理和    x ^ y
#################

#####ide_ele#####
ide_ele = 0
    # 最小値    float('inf')
    # 最大値  -float('inf')
    # 区間和    0
    # 区間積    1
    # 最大公約数  0
    # 排他的論理和 0
#################

class SegTree:
    """
    init(init_val, ide_ele): 配列init_valで初期化 O(N)
    update(k, x): k番目の値をxに更新 O(logN)
    query(l, r): 区間[l, r)をsegfuncしたものを返す O(logN)
    """
    def __init__(self, init_val, segfunc, ide_ele):
        """
        init_val: 配列の初期値
        segfunc: 区間にしたい操作
        ide_ele: 単位元
        n: 要素数
        num: n以上の最小の2のべき乗
        tree: セグメント木(1-index)
        """
        n = len(init_val)
        self.segfunc = segfunc
        self.ide_ele = ide_ele
        self.num = 1 << (n - 1).bit_length()
        self.tree = [ide_ele] * 2 * self.num
        # 配列の値を葉にセット
        for i in range(n):
            self.tree[self.num + i] = init_val[i]
        # 構築していく
        for i in range(self.num - 1, 0, -1):
            self.tree[i] = self.segfunc(self.tree[2 * i], self.tree[2 * i + 1])

    def update(self, k, x):
        """
        k番目の値をxに更新
        k: index(0-index)
        x: update value
        """
        k += self.num
        self.tree[k] = x
        while k > 1:
            self.tree[k >> 1] = self.segfunc(self.tree[k], self.tree[k ^ 1])
            k >>= 1

    def query(self, l, r):
        """
        [l, r)のsegfuncしたものを得る
        l: index(0-index)
        r: index(0-index)
        """
        res = self.ide_ele

        l += self.num
        r += self.num
        while l < r:
            if l & 1:
                res = self.segfunc(res, self.tree[l])
                l += 1
            if r & 1:
                res = self.segfunc(res, self.tree[r - 1])
            l >>= 1
            r >>= 1
        return res


###UnionFind###

from collections import defaultdict

class UnionFind():
    """
    Union Find木クラス

    Attributes
    --------------------
    n : int
        要素数
    root : list
        木の要素数
        0未満であればそのノードが根であり、添字の値が要素数
    rank : list
        木の深さ
    """

    def __init__(self, n):
        """
        Parameters
        ---------------------
        n : int
            要素数
        """
        self.n = n
        self.root = [-1]*(n+1)
        self.rank = [0]*(n+1)

    def find(self, x):
        """
        ノードxの根を見つける

        Parameters
        ---------------------
        x : int
            見つけるノード

        Returns
        ---------------------
        root : int
            根のノード
        """
        if(self.root[x] < 0):
            return x
        else:
            self.root[x] = self.find(self.root[x])
            return self.root[x]

    def unite(self, x, y):
        """
        木の併合

        Parameters
        ---------------------
        x : int
            併合したノード
        y : int
            併合したノード
        """
        x = self.find(x)
        y = self.find(y)

        if(x == y):
            return
        elif(self.rank[x] > self.rank[y]):
            self.root[x] += self.root[y]
            self.root[y] = x
        else:
            self.root[y] += self.root[x]
            self.root[x] = y
            if(self.rank[x] == self.rank[y]):
                self.rank[y] += 1

    def same(self, x, y):
        """
        同じグループに属するか判定

        Parameters
        ---------------------
        x : int
            判定したノード
        y : int
            判定したノード

        Returns
        ---------------------
        ans : bool
            同じグループに属しているか
        """
        return self.find(x) == self.find(y)

    def size(self, x):
        """
        木のサイズを計算

        Parameters
        ---------------------
        x : int
            計算したい木のノード

        Returns
        ---------------------
        size : int
            木のサイズ
        """
        return -self.root[self.find(x)]

    def roots(self):
        """
        根のノードを取得

        Returns
        ---------------------
        roots : list
            根のノード
        """
        return [i for i, x in enumerate(self.root) if x < 0]

    def group_size(self):
        """
        グループ数を取得

        Returns
        ---------------------
        size : int
            グループ数
        """
        return len(self.roots()) - 1

    def group_members(self):
        """
        全てのグループごとのノードを取得

        Returns
        ---------------------
        group_members : defaultdict
            根をキーとしたノードのリスト
        """
        group_members = defaultdict(list)
        for member in range(self.n):
            group_members[self.find(member)].append(member)
        return group_members


###素因数分解###

def prime_factorize(n: int) -> list:
   return_list = []
   while n % 2 == 0:
   	  return_list.append(2)
   	  n //= 2
   f = 3
   while f * f <= n:
   	  if n % f == 0:
   	  	  return_list.append(f)
   	  	  n //= f
   	  else:
   	  	  f += 2
   if n != 1:
   	  return_list.append(n)
   return return_list


###ある数が素数かどうかの判定###

def is_prime(n):
    if n < 2:
        return False
    i = 2
    while i * i <= n:
        if n % i == 0:
            return False
        i += 1
    return True
    

###N以下の素数列挙###

import math 
def sieve_of_eratosthenes(n):
	  prime = [True for i in range(n+1)]
	  prime[0] = False
	  prime[1] = False
	  
	  sqrt_n = math.ceil(math.sqrt(n))
	  for i in range(2, sqrt_n+1):
	  	  if prime[i]:
	  	  	  for j in range(2*i, n+1, i):
	  	  	  	  prime[j] = False
	  return prime


###N以上K以下の素数列挙###

import math

def segment_sieve(a, b):
	  sqrt_b = math.ceil(math.sqrt(b))
	  prime_small = [True for i in range(sqrt_b)]
	  prime = [True for i in range(b-a+1)]
	  
	  for i in range(2, sqrt_b):
	  	  if prime_small[i]:
	  	  	  for j in range(2*i, sqrt_b, i):
	  	  	  	  prime_small[j] = False
	  	  	  for j in range((a+i-1)//i*i, b+1, i):
	  	  	  	  #print('j: ', j)
	  	  	  	  prime[j-a] = False
	  return prime


###n進数から10進数変換###

def base_10(num_n,n):
	  num_10 = 0
	  for s in str(num_n):
	  	  num_10 *= n
	  	  num_10 += int(s)
	  return num_10


###10進数からn進数変換###

def base_n(num_10,n):
	  str_n = ''
	  while num_10:
	  	  if num_10%n>=10:
	  	  	  return -1
	  	  str_n += str(num_10%n)
	  	  num_10 //= n
	  return int(str_n[::-1])


###複数の数の最大公約数、最小公倍数###

from functools import reduce

# 最大公約数
def gcd_list(num_list: list) -> int:
	  return reduce(gcd, num_list)

# 最小公倍数
def lcm_base(x: int, y: int) -> int:
	  return (x * y) // gcd(x, y)
def lcm_list(num_list: list):
	  return reduce(lcm_base, num_list, 1)


###約数列挙###

def make_divisors(n):
	  lower_divisors, upper_divisors = [], []
	  i = 1
	  while i * i <= n:
	  	  if n % i == 0:
	  	  	  lower_divisors.append(i)
	  	  	  if i != n // i:
	  	  	  	  upper_divisors.append(n//i)
	  	  i += 1
	  return lower_divisors + upper_divisors[::-1]


###順列###

def nPr(n, r):
	  npr = 1
	  for i in range(n, n-r, -1):
	  	  npr *= i
	  return npr


###組合せ###

def nCr(n, r):
	  factr = 1
	  r = min(r, n - r)
	  for i in range(r, 1, -1):
	  	  factr *= i
	  return nPr(n, r)/factr


###組合せMOD###

def comb(n,k):
    nCk = 1
    MOD = 10**9+7

    for i in range(n-k+1, n+1):
        nCk *= i
        nCk %= MOD

    for i in range(1,k+1):
        nCk *= pow(i,MOD-2,MOD)
        nCk %= MOD
    return nCk


import sys, re
from fractions import Fraction
from math import ceil, floor, sqrt, pi, factorial, gcd
from copy import deepcopy
from collections import Counter, deque, defaultdict
from heapq import heapify, heappop, heappush
from itertools import accumulate, product, combinations, combinations_with_replacement, permutations
from bisect import bisect, bisect_left, bisect_right
from functools import reduce
from decimal import Decimal, getcontext, ROUND_HALF_UP
def i_input(): return int(input())
def i_map(): return map(int, input().split())
def i_list(): return list(i_map())
def i_row(N): return [i_input() for _ in range(N)]
def i_row_list(N): return [i_list() for _ in range(N)]
def s_input(): return input()
def s_map(): return input().split()
def s_list(): return list(s_map())
def s_row(N): return [s_input for _ in range(N)]
def s_row_str(N): return [s_list() for _ in range(N)]
def s_row_list(N): return [list(s_input()) for _ in range(N)]
def lcm(a, b): return a * b // gcd(a, b)
def get_distance(x1, y1, x2, y2):
	  d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
	  return d
def rotate(table):
   	  n_fild = []
   	  for x in zip(*table[::-1]):
   	  	  n_fild.append(x)
   	  return n_fild
sys.setrecursionlimit(10 ** 7)
INF = float('inf')
MOD = 10 ** 9 + 7
MOD2 = 998244353


###関数コピーしたか?###
def main():
   
   N = int(input())
   S = input()
   
   S1 = SortedMultiset()
   S2 = SortedMultiset()
   S3 = SortedMultiset()
   
   for i in range(3*N):
   	  if i % 3 == 0:
   	  	  if S[i] == 'c':
   	  	  	  S1.add(1)
   	  	  elif S[i] == 'o':
   	  	  	  S1.add(2)
   	  	  elif S[i] == 'n':
   	  	  	  S1.add(3)
   	  	  else:
   	  	  	  S1.add(0)
   	  if i % 3 == 1:
   	  	  if S[i] == 'c':
   	  	  	  S2.add(1)
   	  	  elif S[i] == 'o':
   	  	  	  S2.add(2)
   	  	  elif S[i] == 'n':
   	  	  	  S2.add(3)
   	  	  else:
   	  	  	  S2.add(0)
   	  if i % 3 == 2:
   	  	  if S[i] == 'c':
   	  	  	  S3.add(1)
   	  	  elif S[i] == 'o':
   	  	  	  S3.add(2)
   	  	  elif S[i] == 'n':
   	  	  	  S3.add(3)
   	  	  else:
   	  	  	  S3.add(0)
   
   ans = 0
   cou = 0
   for i in range(3*N):
   	  if i % 3 == 0:
   	  	  if cou == 0:
   	  	  	  strs = 1
   	  	  	  if strs in S1:
   	  	  	  	  cou = 1
   	  	  	  	  S1.discard(1)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S1.discard(0)
   	  	  elif cou == 1:
   	  	  	  strs = 2
   	  	  	  if strs in S1:
   	  	  	  	  cou = 2
   	  	  	  	  S1.discard(2)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S1.discard(0)
   	  	  else:
   	  	  	  strs = 3
   	  	  	  if strs in S1:
   	  	  	  	  cou = 3
   	  	  	  	  S1.discard(3)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S1.discard(0)
   	  	  
   	  	  if cou == 3:
   	  	  	  ans += 1
   	  	  	  cou = 0
   	  
   	  if i % 3 == 1:
   	  	  if cou == 0:
   	  	  	  strs = 1
   	  	  	  if strs in S2:
   	  	  	  	  cou = 1
   	  	  	  	  S2.discard(1)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S2.discard(0)
   	  	  elif cou == 1:
   	  	  	  strs = 2
   	  	  	  if strs in S2:
   	  	  	  	  cou = 2
   	  	  	  	  S2.discard(2)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S2.discard(0)
   	  	  else:
   	  	  	  strs = 3
   	  	  	  if strs in S2:
   	  	  	  	  cou = 3
   	  	  	  	  S2.discard(3)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S2.discard(0)
   	  	  
   	  	  if cou == 3:
   	  	  	  ans += 1
   	  	  	  cou = 0
   	  
   	  if i % 3 == 2:
   	  	  if cou == 0:
   	  	  	  strs = 1
   	  	  	  if strs in S3:
   	  	  	  	  cou = 1
   	  	  	  	  S3.discard(1)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S3.discard(0)
   	  	  elif cou == 1:
   	  	  	  strs = 2
   	  	  	  if strs in S3:
   	  	  	  	  cou = 2
   	  	  	  	  S3.discard(2)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S3.discard(0)
   	  	  else:
   	  	  	  strs = 3
   	  	  	  if strs in S3:
   	  	  	  	  cou = 3
   	  	  	  	  S3.discard(3)
   	  	  	  else:
   	  	  	  	  cou = 0
   	  	  	  	  S3.discard(0)
   	  	  
   	  	  if cou == 3:
   	  	  	  ans += 1
   	  	  	  cou = 0
   print(ans)
   
if __name__ == '__main__':
    main()
0