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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasya wrote down two strings s of length n and t of length m consisting of small English letters 'a' and 'b'. What is more, he knows that string t has a form "abab...", namely there are letters 'a' on odd positions and letters 'b' on even positions. Suddenly in the morning, Vasya found that somebody spoiled his string. Some letters of the string s were replaced by character '?'. Let's call a sequence of positions i, i + 1, ..., i + m - 1 as occurrence of string t in s, if 1 ≤ i ≤ n - m + 1 and t1 = si, t2 = si + 1, ..., tm = si + m - 1. The boy defines the beauty of the string s as maximum number of disjoint occurrences of string t in s. Vasya can replace some letters '?' with 'a' or 'b' (letters on different positions can be replaced with different letter). Vasya wants to make some replacements in such a way that beauty of string s is maximum possible. From all such options, he wants to choose one with the minimum number of replacements. Find the number of replacements he should make. Input The first line contains a single integer n (1 ≤ n ≤ 105) — the length of s. The second line contains the string s of length n. It contains small English letters 'a', 'b' and characters '?' only. The third line contains a single integer m (1 ≤ m ≤ 105) — the length of t. The string t contains letters 'a' on odd positions and 'b' on even positions. Output Print the only integer — the minimum number of replacements Vasya has to perform to make the beauty of string s the maximum possible. Examples Input 5 bb?a? 1 Output 2 Input 9 ab??ab??? 3 Output 2 Note In the first sample string t has a form 'a'. The only optimal option is to replace all characters '?' by 'a'. In the second sample using two replacements we can make string equal to "aba?aba??". It is impossible to get more than two occurrences. Submitted Solution: ``` n = int(input()) s = list(input()) t = int(input()) re = s.copy() kras = 'ab' kras *= t kras = kras[:t] col = s.count('?') c = 0 v = 0 q = 0 h = 0 for i in range(2 ** col): shable = bin(i)[2:] priv = '0' * (col - len(shable)) priv += shable shable = priv for el in range(n): if s[el] == '?': if shable[q] == '1': if s[el - 1] == 'b': s[el] = 'a' else: s[el] = 'b' q += 1 new = ''.join(s).count(kras) if new > c: v = shable.count('1') c = new s = re.copy() q = 0 h = 0 print(v) ``` No
108,368
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0
Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` class CodeforcesTask999BSolution: def __init__(self): self.result = '' self.n = 0 self.code = '' def read_input(self): self.n = int(input()) self.code = input() def process_task(self): for x in range(1, self.n + 1): if not self.n % x: self.code = self.code[:x][::-1] + self.code[x:] self.result = self.code def get_result(self): return self.result if __name__ == "__main__": Solution = CodeforcesTask999BSolution() Solution.read_input() Solution.process_task() print(Solution.get_result()) ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` a=int(input()) b=input() f=[] for i in range(1,a+1): if a%i==0: f.append(i) f.sort() def aa(a,b): g='' for i in range(a,len(b)): g=g+b[i] e=[] for i in range(a): e.append(b[i]) e.reverse() t='' for i in e: t=t+i t=t+g return(t) for i in f: b=aa(i,b) print(b) ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` n = int(input()) str1 = str(input()) l2 = [] for i in str1: l2.append(i) l1 = [] # x = n/1.0 for j in range(1,n): if n/j == int(n/j): l1.append(j) l1.append(int(n)) for i in l1: l3 = l2[0:i] l3.reverse() l2[0:i] = l3[0:i] strp = "" for i in l2: strp+=i print(strp) ```
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0
Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` def rev( l , d ) : ll = l[ d : ] ll1 = l[ : d] ll = ll1[::-1] + ll return ll n = int( input() ) s = str( input() ) di = [] for i in range( 1 , n + 1 ) : if n % i == 0 : di.append( i ) l = list( s ) for i in range( len( di ) ) : #print( ''.join( l ) ) l = rev( l , di[ i ] ) #print(''.join( l ) , di[ i ] ) print( ''.join(l) ) ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` IL = lambda: list(map(int, input().split())) n = int(input()) s = list(input()) for i in range(1, n+1): if n%i: continue s[:i] = s[i-1::-1] print(''.join(s)) ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` n = int(input()) u = [n] for i in range(n // 2, 1, -1): if n % i == 0: u.append(i) s = list(input()) u.reverse() for i in u: d = s[:i] d.reverse() s = d + s[i:] for i in s: print(i, end = '') ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` n = int(input()) k = list(input()) l = [i for i in range(2,(n**1//2)+1) if n%i==0 ] for i in l: k[:i] = k[i-1::-1] print(''.join(k[::-1])) ```
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Provide tags and a correct Python 3 solution for this coding contest problem. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Tags: implementation Correct Solution: ``` n=int(input()) x=input() for i in range(2,n+1): # print(n,i) if n%i==0: s=x[i-1::-1] s+=x[i:] x=s # print(s) print(x) ```
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` #!/usr/bin/env python # -*- coding: utf-8 -*- n = int(input()) s = list(input()) for i in range(1, n+1): if n % i == 0: s[0:i] = s[i-1::-1] print(''.join(s)) ``` Yes
108,403
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` n =int(input()) s = input() def findAllDivisors(k): lst = [] for i in range(1,k+1): if k%i == 0: lst.append(i) return lst lst = findAllDivisors(n) for i in range(0, len(lst)): newStr = s[0:lst[i]] newStr = newStr[::-1] newStr1 = s[lst[i]:len(s)] s = newStr + newStr1 print(s) ``` Yes
108,404
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` n=int(input()) a=input() for i in range(2,n): if n%i==0: #print(i,a) #print(a[]) a=a[i-1::-1]+a[i:] #print(i,a) a=a[::-1] print(a) ``` Yes
108,405
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` # http://codeforces.com/contest/999/problem/B def read_nums(): return [int(x) for x in input().split()] def main(): n, = read_nums() s = input() for i in range(1, n + 1): if n % i == 0: one = s[:i][::-1] two = s[i:] s = one + two print(s) if __name__ == '__main__': main() ``` Yes
108,406
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` def reverse(y): p="" for k in range(len(y)-1,-1,-1): p=p+y[k] return p n=int(input()) s=input() L=[] for i in range(1,n+1): if n%i==0: L.append(i) for j in range(len(L)): a=s[:L[j]] s=reverse(a)+s[L[j]:] print(s) ``` No
108,407
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` n = int(input()) string = list(input()) divisors = [] for i in range(1, n+1): if n % i == 0: divisors.append(i-1) for divisor in divisors: print(divisor) rev = string[:divisor+1] rev = rev[::-1] string = rev + string[divisor+1:] # print(string) print("".join(string)) ``` No
108,408
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` a = int(input()) s = list(input()) b = [] for i in range(a, 1, -1): if a % i == 0: b.append(i) for i in b: s[0:i] = reversed(s[0:i]) s = "".join(s) print(s) ``` No
108,409
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A string s of length n can be encrypted by the following algorithm: * iterate over all divisors of n in decreasing order (i.e. from n to 1), * for each divisor d, reverse the substring s[1 ... d] (i.e. the substring which starts at position 1 and ends at position d). For example, the above algorithm applied to the string s="codeforces" leads to the following changes: "codeforces" → "secrofedoc" → "orcesfedoc" → "rocesfedoc" → "rocesfedoc" (obviously, the last reverse operation doesn't change the string because d=1). You are given the encrypted string t. Your task is to decrypt this string, i.e., to find a string s such that the above algorithm results in string t. It can be proven that this string s always exists and is unique. Input The first line of input consists of a single integer n (1 ≤ n ≤ 100) — the length of the string t. The second line of input consists of the string t. The length of t is n, and it consists only of lowercase Latin letters. Output Print a string s such that the above algorithm results in t. Examples Input 10 rocesfedoc Output codeforces Input 16 plmaetwoxesisiht Output thisisexampletwo Input 1 z Output z Note The first example is described in the problem statement. Submitted Solution: ``` q=lambda:map(int,input().split()) qi=lambda:int(input()) qs=lambda:input().split() def lol(n): for i in range(1,n+1): if n%i==0: yield i n=qi() a=input() for i in lol(n): a=''.join(reversed(a[0:i]))+a[i:10] print(a) ``` No
108,410
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0
Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` #-*- coding:utf-8 -*- t = input() print(t.replace("?","D")) ```
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0
Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` T = input() y = T.replace('?', 'D') print(y) ```
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Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` T = input().replace('?', 'D') print(T) ```
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0
Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` T = input() _T = T.replace('?','D') print(_T) ```
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Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` t=input() for i in t: print('P' if i=='P' else 'D',end='') ```
108,415
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Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` t = str(input()) ans = t.replace('?', 'D') print(ans) ```
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0
Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` T = input() D = T.replace("?","D") print(D) ```
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0
Provide a correct Python 3 solution for this coding contest problem. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD "Correct Solution: ``` s = input() while "?" in s: s = s.replace("?","D") print(s) ```
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD Submitted Solution: ``` t=str(input()) t=t.replace('?','D') print(t) ``` Yes
108,420
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0
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD Submitted Solution: ``` T = input() s = T.replace("?","D") print(s) ``` Yes
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. For a string S consisting of the uppercase English letters `P` and `D`, let the doctoral and postdoctoral quotient of S be the total number of occurrences of `D` and `PD` in S as contiguous substrings. For example, if S = `PPDDP`, it contains two occurrences of `D` and one occurrence of `PD` as contiguous substrings, so the doctoral and postdoctoral quotient of S is 3. We have a string T consisting of `P`, `D`, and `?`. Among the strings that can be obtained by replacing each `?` in T with `P` or `D`, find one with the maximum possible doctoral and postdoctoral quotient. Constraints * 1 \leq |T| \leq 2 \times 10^5 * T consists of `P`, `D`, and `?`. Input Input is given from Standard Input in the following format: T Output Print one string with the maximum possible doctoral and postdoctoral quotient among the strings that can be obtained by replacing each `?` in T with `P` or `D`. If there are multiple such strings, you may print any of them. Examples Input PD?D??P Output PDPDPDP Input P?P? Output PDPD Submitted Solution: ``` T = input() ans = T[-1] if T[-1] == '?': ans = 'D' for i in range(1, len(T)): s, t = T[-1-i], T[-i] if s == '?': if t == 'D' : ans += 'P' elif t == 'P': ans += 'D' else: if ans[i-1] == 'D': ans += 'P' else: ans += 'D' else: ans += s print(ans[::-1]) ``` No
108,426
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We will call a string that can be obtained by concatenating two equal strings an even string. For example, `xyzxyz` and `aaaaaa` are even, while `ababab` and `xyzxy` are not. For a non-empty string S, we will define f(S) as the shortest even string that can be obtained by appending one or more characters to the end of S. For example, f(`abaaba`)=`abaababaab`. It can be shown that f(S) is uniquely determined for a non-empty string S. You are given an even string S consisting of lowercase English letters. For each letter in the lowercase English alphabet, find the number of its occurrences from the l-th character through the r-th character of f^{10^{100}} (S). Here, f^{10^{100}} (S) is the string f(f(f( ... f(S) ... ))) obtained by applying f to S 10^{100} times. Constraints * 2 \leq |S| \leq 2\times 10^5 * 1 \leq l \leq r \leq 10^{18} * S is an even string consisting of lowercase English letters. * l and r are integers. Input Input is given from Standard Input in the following format: S l r Output Print 26 integers in a line with spaces in between. The i-th integer should be the number of the occurrences of the i-th letter in the lowercase English alphabet from the l-th character through the r-th character of f^{10^{100}} (S). Examples Input abaaba 6 10 Output 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Input xx 1 1000000000000000000 Output 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1000000000000000000 0 0 Input vgxgpuamkvgxgvgxgpuamkvgxg 1 1000000000000000000 Output 87167725689669676 0 0 0 0 0 282080685775825810 0 0 0 87167725689669676 0 87167725689669676 0 0 87167725689669676 0 0 0 0 87167725689669676 141040342887912905 0 141040342887912905 0 0 Submitted Solution: ``` import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines from collections import Counter """ ・実験すると、何回かやるとFibonacci(未証明) """ S = readline().rstrip() l,r = map(int,read().split()) def double_naive(S): L = len(S) for i in range(1,L+1): T = S[:i] * 2 if len(T) > L and T[:L] == S: return T def Z_algorithm(S): # 共通接頭辞の長さを返す N=len(S) arr = [0]*N arr[0] = N i,j = 1,0 while i<N: while i+j<N and S[j]==S[i+j]: j += 1 arr[i]=j if not j: i += 1 continue k = 1 while i+k<N and k+arr[k]<j: arr[i+k] = arr[k] k += 1 i += k; j -= k return arr def F(S): N = len(S) opt_len = N Z = Z_algorithm(S) for x in range(N//2+1,N): z = Z[x] if x + z >= N: opt_len = x break return S[:opt_len] * 2 S = F(S) T = F(S) # S,T,TS,TST,... L = [len(S), len(T)] for _ in range(100): L.append(L[-1] + L[-2]) ctr = [Counter(S), Counter(T)] for _ in range(100): ctr.append(ctr[-1] + ctr[-2]) def get_dist(N,R): # S_NにおけるR番目以下 if N == 0: return Counter(S[:R]) if N == 1: return Counter(T[:R]) if L[N-1] >= R: return get_dist(N-1,R) return ctr[N-1] + get_dist(N-2,R-L[N-1]) ctr = get_dist(99,r) - get_dist(99,l-1) answer = [ctr[x + ord('a')] for x in range(26)] print(*answer) ``` No
108,512
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0
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We will call a string that can be obtained by concatenating two equal strings an even string. For example, `xyzxyz` and `aaaaaa` are even, while `ababab` and `xyzxy` are not. For a non-empty string S, we will define f(S) as the shortest even string that can be obtained by appending one or more characters to the end of S. For example, f(`abaaba`)=`abaababaab`. It can be shown that f(S) is uniquely determined for a non-empty string S. You are given an even string S consisting of lowercase English letters. For each letter in the lowercase English alphabet, find the number of its occurrences from the l-th character through the r-th character of f^{10^{100}} (S). Here, f^{10^{100}} (S) is the string f(f(f( ... f(S) ... ))) obtained by applying f to S 10^{100} times. Constraints * 2 \leq |S| \leq 2\times 10^5 * 1 \leq l \leq r \leq 10^{18} * S is an even string consisting of lowercase English letters. * l and r are integers. Input Input is given from Standard Input in the following format: S l r Output Print 26 integers in a line with spaces in between. The i-th integer should be the number of the occurrences of the i-th letter in the lowercase English alphabet from the l-th character through the r-th character of f^{10^{100}} (S). Examples Input abaaba 6 10 Output 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Input xx 1 1000000000000000000 Output 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1000000000000000000 0 0 Input vgxgpuamkvgxgvgxgpuamkvgxg 1 1000000000000000000 Output 87167725689669676 0 0 0 0 0 282080685775825810 0 0 0 87167725689669676 0 87167725689669676 0 0 87167725689669676 0 0 0 0 87167725689669676 141040342887912905 0 141040342887912905 0 0 Submitted Solution: ``` import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines from collections import Counter """ ・実験すると、何回かやるとFibonacci(未証明) """ S = readline().rstrip() l,r = map(int,read().split()) def double_naive(S): L = len(S) for i in range(1,L+1): T = S[:i] * 2 if len(T) > L and T[:L] == S: return T def Z_algorithm(S): # 共通接頭辞の長さを返す N=len(S) arr = [0]*N arr[0] = N i,j = 1,0 while i<N: while i+j<N and S[j]==S[i+j]: j += 1 arr[i]=j if not j: i += 1 continue k = 1 while i+k<N and k+arr[k]<j: arr[i+k] = arr[k] k += 1 i += k; j -= k return arr def F(S): N = len(S) opt_len = N Z = Z_algorithm(S) for x in range(N//2+1,N): z = Z[x] if x + z >= N: opt_len = x break return S[:opt_len] * 2 S = F(S) S = F(S) T = F(S) # S,T,TS,TST,... L = [len(S), len(T)] for _ in range(100): L.append(L[-1] + L[-2]) ctr = [Counter(S), Counter(T)] for _ in range(100): ctr.append(ctr[-1] + ctr[-2]) def get_dist(N,R): # S_NにおけるR番目以下 if N == 0: return Counter(S[:R]) if N == 1: return Counter(T[:R]) if L[N-1] >= R: return get_dist(N-1,R) return ctr[N-1] + get_dist(N-2,R-L[N-1]) ctr = get_dist(99,r) - get_dist(99,l-1) answer = [ctr[x + ord('a')] for x in range(26)] print(*answer) ``` No
108,513
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0
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We will call a string that can be obtained by concatenating two equal strings an even string. For example, `xyzxyz` and `aaaaaa` are even, while `ababab` and `xyzxy` are not. For a non-empty string S, we will define f(S) as the shortest even string that can be obtained by appending one or more characters to the end of S. For example, f(`abaaba`)=`abaababaab`. It can be shown that f(S) is uniquely determined for a non-empty string S. You are given an even string S consisting of lowercase English letters. For each letter in the lowercase English alphabet, find the number of its occurrences from the l-th character through the r-th character of f^{10^{100}} (S). Here, f^{10^{100}} (S) is the string f(f(f( ... f(S) ... ))) obtained by applying f to S 10^{100} times. Constraints * 2 \leq |S| \leq 2\times 10^5 * 1 \leq l \leq r \leq 10^{18} * S is an even string consisting of lowercase English letters. * l and r are integers. Input Input is given from Standard Input in the following format: S l r Output Print 26 integers in a line with spaces in between. The i-th integer should be the number of the occurrences of the i-th letter in the lowercase English alphabet from the l-th character through the r-th character of f^{10^{100}} (S). Examples Input abaaba 6 10 Output 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Input xx 1 1000000000000000000 Output 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1000000000000000000 0 0 Input vgxgpuamkvgxgvgxgpuamkvgxg 1 1000000000000000000 Output 87167725689669676 0 0 0 0 0 282080685775825810 0 0 0 87167725689669676 0 87167725689669676 0 0 87167725689669676 0 0 0 0 87167725689669676 141040342887912905 0 141040342887912905 0 0 Submitted Solution: ``` #!/usr/bin/env python3 M = 10 ** 9 + 7 a = ord('a') def check_cycle(t, p): len_t = len(t) if len_t % p != 0: return False pre = t[: p] for i in range(p, len_t, p): if t[i: i + p] != pre: return False return True def solve_cycle(t, l, r): len_t = len(t) ql = (l - 1) // len_t rl = (l - 1) % len_t qr = r // len_t rr = r % len_t ans = [0] * 26 for ch in t: ans[ord(ch) - a] += 1 for j in range(26): ans[j] *= (qr - ql) for ch in t[: rr + 1]: ans[ord(ch) - a] += 1 for ch in t[: rl + 1]: ans[ord(ch) - a] -= 1 return ans def calc_part(tp, tm, len_p, len_m, dp0, dp1, r, ir): num_p = 0 num_m = 0 for i in range(ir, -1, -1): n = dp0[i] * len_p + dp1[i] * len_m if n <= r: num_p += dp0[i] num_m += dp1[i] r -= n vec = [0] * 26 tr = tp if len_p + len_m < r: num_p += 1 num_m += 1 r -= len_p + len_m elif len_p < r: num_p += 1 r -= len_p tr = tm for ch in tp: vec[ord(ch) - a] += num_p for ch in tm: vec[ord(ch) - a] += num_m for ch in tr[: r]: vec[ord(ch) - a] += 1 return vec def solve_part(t, len_p, l, r): len_t = len(t) len_m = len_t - 2 * len_p dp0 = [0] * 121 dp1 = [0] * 121 dp0[0] = 2 dp1[0] = 1 for i in range(1, 121): dp0[i] = dp0[i - 1] + dp1[i - 1] dp1[i] = dp0[i - 1] n = dp0[i] * len_p + dp1[i] * len_m if l - 1 <= n: il = i - 1 if r <= n: ir = i - 1 break vec_l = calc_part(t[: len_p], t[len_p: len_p + len_m], len_p, len_m, dp0, dp1, l - 1, il) vec_r = calc_part(t[: len_p], t[len_p: len_p + len_m], len_p, len_m, dp0, dp1, r, ir) ans = [vec_r[j] - vec_l[j] for j in range(26)] return ans def solve(s, l, r): t = s[: len(s) // 2] len_t = len(t) if len_t == 1: return solve_cycle(t, l, r) len_p = 0 ph = 0 sh = 0 base = 1 for i in range(len_t // 2): ph *= 26 ph += ord(s[i]) - a ph %= M sh += base * (ord(s[-1 - i]) - a) sh %= M if ph == sh: if check_cycle(t, i + 1): return sovle_cycle(t[: i + 1], l, r) elif t[: i + 1] == t[-1 - i:]: len_p = i + 1 base *= 26 if len_p == 0: return solve_cycle(t, l, r) return solve_part(t, len_p, l, r) def main(): s = input() l, r = input().split() l = int(l) r = int(r) print(' '.join(list(map(str, solve(s, l, r))))) if __name__ == '__main__': main() ``` No
108,514
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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We will call a string that can be obtained by concatenating two equal strings an even string. For example, `xyzxyz` and `aaaaaa` are even, while `ababab` and `xyzxy` are not. For a non-empty string S, we will define f(S) as the shortest even string that can be obtained by appending one or more characters to the end of S. For example, f(`abaaba`)=`abaababaab`. It can be shown that f(S) is uniquely determined for a non-empty string S. You are given an even string S consisting of lowercase English letters. For each letter in the lowercase English alphabet, find the number of its occurrences from the l-th character through the r-th character of f^{10^{100}} (S). Here, f^{10^{100}} (S) is the string f(f(f( ... f(S) ... ))) obtained by applying f to S 10^{100} times. Constraints * 2 \leq |S| \leq 2\times 10^5 * 1 \leq l \leq r \leq 10^{18} * S is an even string consisting of lowercase English letters. * l and r are integers. Input Input is given from Standard Input in the following format: S l r Output Print 26 integers in a line with spaces in between. The i-th integer should be the number of the occurrences of the i-th letter in the lowercase English alphabet from the l-th character through the r-th character of f^{10^{100}} (S). Examples Input abaaba 6 10 Output 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Input xx 1 1000000000000000000 Output 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1000000000000000000 0 0 Input vgxgpuamkvgxgvgxgpuamkvgxg 1 1000000000000000000 Output 87167725689669676 0 0 0 0 0 282080685775825810 0 0 0 87167725689669676 0 87167725689669676 0 0 87167725689669676 0 0 0 0 87167725689669676 141040342887912905 0 141040342887912905 0 0 Submitted Solution: ``` def getSS(S): helfLength = int(len(S) / 2) + 1 while S[:int(len(S[helfLength:]))] != S[helfLength:]: helfLength += 1 return S[:helfLength] * 2 result = "" S = input() SS = S lr = [int(i) for i in input().split()] i = 0 while i < 10: SS = getSS(SS) i += 1 cList = [chr(i) for i in range(97, 97+26)] for c in cList: result += str(SS[lr[0]-1:lr[1]].count(c)) + " " print(result.rstrip()) ``` No
108,515
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Provide a correct Python 3 solution for this coding contest problem. Problem There are $ M $ type characters. Use them to create a string of length $ N $. How many strings are used that have $ K $ or more? Find too much divided by $ 998244353 $. Here, the difference between two strings of length $ N $ is defined as follows. * If the two strings are $ S = S_1S_2 \ ldots S_N $, $ T = T_1T_2 \ ldots T_N $, then $ i $$ (1 \ leq i \ leq N) becomes $ S_i \ neq T_i $ ) $ Exists. Constraints The input satisfies the following conditions. * $ 1 \ leq M \ leq 10 ^ {18} $ * $ 1 \ leq N \ leq 10 ^ {18} $ * $ 1 \ leq K \ leq 1000 $ * All inputs are integers Input The input is given in the following format. $ M $ $ N $ $ K $ $ M, N, K $ are given on one line, separated by blanks. Output Output the remainder of the number of characters used in a string of length $ N $ that is greater than or equal to $ K $ divided by $ 998244353 $. Examples Input 2 10 1 Output 1024 Input 1 1 2 Output 0 Input 5 10 3 Output 9755400 Input 7 8 3 Output 5759460 Input 1000000000000000000 1000000000000000000 1000 Output 133611974 "Correct Solution: ``` #!usr/bin/env python3 from collections import defaultdict,deque from heapq import heappush, heappop import sys import math import bisect import random def LI(): return [int(x) for x in sys.stdin.readline().split()] def I(): return int(sys.stdin.readline()) def LS():return [list(x) for x in sys.stdin.readline().split()] def S(): res = list(sys.stdin.readline()) if res[-1] == "\n": return res[:-1] return res def IR(n): return [I() for i in range(n)] def LIR(n): return [LI() for i in range(n)] def SR(n): return [S() for i in range(n)] def LSR(n): return [LS() for i in range(n)] sys.setrecursionlimit(1000000) mod = 998244353 def solve(): m,n,k = LI() if n < k: print(0) return if m < k: print(0) return ans = pow(m,n,mod) p = [pow(i,n,mod) for i in range(k+1)] c = m comb = [[0 for i in range(i+1)] for i in range(k+1)] comb[0][0] = 1 for i in range(k): for j in range(i+1): comb[i+1][j] += comb[i][j] comb[i+1][j+1] += comb[i][j] for i in range(1,k): k = 0 for j in range(1,i+1)[::-1]: if (i+j)&1: k -= comb[i][j]*p[j] else: k += comb[i][j]*p[j] k *= c c *= (m-i) c *= pow(i+1,mod-2,mod) c %= mod ans -= k ans %= mod print(ans) return if __name__ == "__main__": solve() ```
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