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Provide tags and a correct Python 3 solution for this coding contest problem. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two strings a and b, find the length of their longe...
instruction
0
17,319
0
34,638
Tags: constructive algorithms, strings Correct Solution: ``` w1 = input() w2 = input() if w1==w2: print("-1") else: print(max(len(w1),len(w2))) ```
output
1
17,319
0
34,639
Provide tags and a correct Python 3 solution for this coding contest problem. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two strings a and b, find the length of their longe...
instruction
0
17,320
0
34,640
Tags: constructive algorithms, strings Correct Solution: ``` a, b = input(), input() if a == b: print(-1) elif len(a) > len(b): print(len(a)) elif len(a) < len(b): print(len(b)) else: print(len(a)) ```
output
1
17,320
0
34,641
Provide tags and a correct Python 3 solution for this coding contest problem. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two strings a and b, find the length of their longe...
instruction
0
17,321
0
34,642
Tags: constructive algorithms, strings Correct Solution: ``` s=input() d=input() m=-1 if len(s) != len(d): m=max(len(s),len(d)) elif len(s)==len(d): for i in range(len(s)): if s[i] != d[i]: m=max(len(s),len(d)) print(m) ```
output
1
17,321
0
34,643
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,322
0
34,644
Yes
output
1
17,322
0
34,645
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,323
0
34,646
Yes
output
1
17,323
0
34,647
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,324
0
34,648
Yes
output
1
17,324
0
34,649
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,325
0
34,650
Yes
output
1
17,325
0
34,651
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,326
0
34,652
No
output
1
17,326
0
34,653
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,327
0
34,654
No
output
1
17,327
0
34,655
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,328
0
34,656
No
output
1
17,328
0
34,657
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab challenged Mahmoud with another problem. Given two ...
instruction
0
17,329
0
34,658
No
output
1
17,329
0
34,659
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,795
0
35,590
Tags: combinatorics, dp, implementation Correct Solution: ``` import sys input = sys.stdin.readline ''' ''' triangle = lambda n: n*(n+1)//2 n, k = map(int, input().split()) s = list(input().rstrip()) valid = { c for c in input().rstrip() } res = 0 op = None i = 0 while i < n: if s[i] in valid: if op ==...
output
1
17,795
0
35,591
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,796
0
35,592
Tags: combinatorics, dp, implementation Correct Solution: ``` q,k = map(int,input().split()) s=input() alph = list(input().split()) kol = 0 ind =[0] for i in range (len(s)): if s[i] not in alph: ind.append(i+1) ind.append(len(s)+1) for i in range (len(ind)-1): n = ind[i+1] - ind[i] - 1 kol += n*(n...
output
1
17,796
0
35,593
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,797
0
35,594
Tags: combinatorics, dp, implementation Correct Solution: ``` n,k = map(int,input().split()) s = input()+'-' m = input() c = 0 ans = 0 for j in s: if (j in m): c+=1 else: ans+= (c*(c+1))//2 c = 0 print(ans) ```
output
1
17,797
0
35,595
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,798
0
35,596
Tags: combinatorics, dp, implementation Correct Solution: ``` m, n = input().split() s = input() b = [i for i in input().split()] k = [0 for i in range(int(m))] for i in range(int(m)): if(s[i] in b): if(i > 0): k[i] = k[i - 1] + 1 else: k[i] = 1 print(sum(k)) ```
output
1
17,798
0
35,597
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,799
0
35,598
Tags: combinatorics, dp, implementation Correct Solution: ``` n, k = map(int, input().split()) s = input() c = set(map(str, input().split())) cnt, i = [], 0 while i < n: j = i while j < n and s[j] in c: j += 1 cnt.append(j-i) i = j+1 res = sum([i*(i+1)//2 for i in cnt]) print(res) ```
output
1
17,799
0
35,599
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,800
0
35,600
Tags: combinatorics, dp, implementation Correct Solution: ``` n,k = map(int,input().split()) s = input() b = input() B = list(b) d = {} for i in B: if i not in d: d[i] = 1 pre = [0]*(n) if s[0] in d: pre[0] = 1 else: pre[0] = 0 for i in range(1,n): if s[i] in d: pre[i] = pre[i-1]+1 e...
output
1
17,800
0
35,601
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,801
0
35,602
Tags: combinatorics, dp, implementation Correct Solution: ``` a,b = input().split() a = int(a) b = int(b) s = input() d = list(input().strip().split()) j = 0 for i in range(0,len(s)): if(s[i] in d): j = i # print(j) break ans = 0 finalans = 0 for i in range(j,len(s)): if(s[i] not in d)...
output
1
17,801
0
35,603
Provide tags and a correct Python 3 solution for this coding contest problem. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all (n (n + 1))/(2) of them! A substring of s is a...
instruction
0
17,802
0
35,604
Tags: combinatorics, dp, implementation Correct Solution: ``` n, k = [int(x) for x in input().split()] s = input() letters = set(x for x in input().split()) temp = 0 ans = 0 for c in s: if c in letters: temp += 1 else: ans += temp * (temp + 1) // 2 temp = 0 ans += temp * (temp + 1) // ...
output
1
17,802
0
35,605
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,803
0
35,606
Yes
output
1
17,803
0
35,607
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,804
0
35,608
Yes
output
1
17,804
0
35,609
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,805
0
35,610
Yes
output
1
17,805
0
35,611
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,806
0
35,612
Yes
output
1
17,806
0
35,613
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,807
0
35,614
No
output
1
17,807
0
35,615
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,808
0
35,616
No
output
1
17,808
0
35,617
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,809
0
35,618
No
output
1
17,809
0
35,619
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Recently, Norge found a string s = s_1 s_2 … s_n consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all ...
instruction
0
17,810
0
35,620
No
output
1
17,810
0
35,621
Provide tags and a correct Python 3 solution for this coding contest problem. Having read half of the book called "Storm and Calm" on the IT lesson, Innocentius was absolutely determined to finish the book on the maths lessons. All was fine until the math teacher Ms. Watkins saw Innocentius reading fiction books inste...
instruction
0
17,847
0
35,694
Tags: data structures, implementation, strings Correct Solution: ``` s=[(0,0)] c=0 for i,x in enumerate(input()) : c+=-1 if x.lower() in 'aeiou' else 2 s.append((c,i+1)) #print(s) lis = sorted(s) #print(lis) u = 10**9 d = {} answer = 0 for i in lis : if u < i[1] : if i[1]-u >= answer : ans...
output
1
17,847
0
35,695
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Having read half of the book called "Storm and Calm" on the IT lesson, Innocentius was absolutely determined to finish the book on the maths lessons. All was fine until the math teacher Ms. Watk...
instruction
0
17,848
0
35,696
No
output
1
17,848
0
35,697
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Having read half of the book called "Storm and Calm" on the IT lesson, Innocentius was absolutely determined to finish the book on the maths lessons. All was fine until the math teacher Ms. Watk...
instruction
0
17,849
0
35,698
No
output
1
17,849
0
35,699
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Having read half of the book called "Storm and Calm" on the IT lesson, Innocentius was absolutely determined to finish the book on the maths lessons. All was fine until the math teacher Ms. Watk...
instruction
0
17,850
0
35,700
No
output
1
17,850
0
35,701
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Having read half of the book called "Storm and Calm" on the IT lesson, Innocentius was absolutely determined to finish the book on the maths lessons. All was fine until the math teacher Ms. Watk...
instruction
0
17,851
0
35,702
No
output
1
17,851
0
35,703
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given three strings (s1, s2, s3). For each integer l (1 ≤ l ≤ min(|s1|, |s2|, |s3|) you need to find how many triples (i1, i2, i3) exist such that three strings sk[ik... ik + l - 1] (k =...
instruction
0
18,074
0
36,148
No
output
1
18,074
0
36,149
Provide a correct Python 3 solution for this coding contest problem. Given is a string S consisting of `0` and `1`. Find the number of strings, modulo 998244353, that can result from applying the following operation on S zero or more times: * Remove the two characters at the beginning of S, erase one of them, and rei...
instruction
0
18,302
0
36,604
"Correct Solution: ``` def cmb(n, r, mod):#コンビネーションの高速計算  if ( r<0 or r>n ): return 0 r = min(r, n-r) return g1[n] * g2[r] * g2[n-r] % mod mod = 998244353 N = 2*10**3 g1 = [1]*(N+1) # 元テーブル g2 = [1]*(N+1) #逆元テーブル inverse = [1]*(N+1) #逆元テーブル計算用テーブル for i in range( 2, N + 1 ): g1[i]=( ( g1[i-1] ...
output
1
18,302
0
36,605
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given is a string S consisting of `0` and `1`. Find the number of strings, modulo 998244353, that can result from applying the following operation on S zero or more times: * Remove the two char...
instruction
0
18,303
0
36,606
No
output
1
18,303
0
36,607
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given is a string S consisting of `0` and `1`. Find the number of strings, modulo 998244353, that can result from applying the following operation on S zero or more times: * Remove the two char...
instruction
0
18,304
0
36,608
No
output
1
18,304
0
36,609
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given is a string S consisting of `0` and `1`. Find the number of strings, modulo 998244353, that can result from applying the following operation on S zero or more times: * Remove the two char...
instruction
0
18,305
0
36,610
No
output
1
18,305
0
36,611
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given is a string S consisting of `0` and `1`. Find the number of strings, modulo 998244353, that can result from applying the following operation on S zero or more times: * Remove the two char...
instruction
0
18,306
0
36,612
No
output
1
18,306
0
36,613
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,387
0
36,774
"Correct Solution: ``` s = input() n = len(s) ans = n for i in range(1, n): if s[i - 1] != s[i]: # left: [0, i) -> length = i # right: [i, n) -> length = n - i ans = min(ans, max(i, n - i)) print(ans) ```
output
1
18,387
0
36,775
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,388
0
36,776
"Correct Solution: ``` s = input() n = len(s) if n%2 == 0: a = n//2 - 1 b = n//2 c = 2 d = s[a] if s[b] != d: print(n//2) quit() else: a = n//2 b = n//2 c = 1 d = s[a] while a-1 >= 0 and s[a-1] == d and s[b+1] == d: a -= 1 b += 1 c += 2 print(n-(n-c)//2) ```
output
1
18,388
0
36,777
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,389
0
36,778
"Correct Solution: ``` s = input() ans = len(s) for i in range(len(s)-1): if s[i] != s[i+1]: ans = min(ans, max(i+1, len(s)-(i+1))) print(ans) ```
output
1
18,389
0
36,779
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,390
0
36,780
"Correct Solution: ``` s=input() n=len(s) ss=s[0] C=[] for i in range(1,n): if s[i]!=ss: C.append(max(i,n-i)) ss=s[i] print(n if len(C)==0 else min(C)) ```
output
1
18,390
0
36,781
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,391
0
36,782
"Correct Solution: ``` # https://atcoder.jp/contests/abc083/submissions/1917434 # i i+1 が異なる場所は中間から探すだけでいい s=input() a=s[(len(s)-1)//2::-1] b=s[len(s)//2:] if a[0]!=b[0]: print(len(s)//2) else: c=str(1-int(a[0])) m = (a+c).find(c) n = (b+c).find(c) print(len(s)//2+min(m,n)) ```
output
1
18,391
0
36,783
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,392
0
36,784
"Correct Solution: ``` s = [int(i) for i in input()] n = len(s) ans = n for i in range(n-1): if s[i] != s[i+1]: ans = min(ans, max(i+1, n-i-1)) print(ans) ```
output
1
18,392
0
36,785
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,393
0
36,786
"Correct Solution: ``` S=input() n=len(S) ans=n for i in range(n-1): if S[i] != S[i+1]: ans=min(ans, max(i+1, n-i-1)) print(ans) ```
output
1
18,393
0
36,787
Provide a correct Python 3 solution for this coding contest problem. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation some number of times. * Choose a contiguous segment [l,r]...
instruction
0
18,394
0
36,788
"Correct Solution: ``` S = input() N = len(S) ans = N for i in range(N-1): if not S[i] == S[i+1]: ans = min( ans, max(N-1-i, i+1)) print(ans) ```
output
1
18,394
0
36,789
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation so...
instruction
0
18,396
0
36,792
Yes
output
1
18,396
0
36,793
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string S consisting of `0` and `1`. Find the maximum integer K not greater than |S| such that we can turn all the characters of S into `0` by repeating the following operation so...
instruction
0
18,399
0
36,798
No
output
1
18,399
0
36,799
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. After learning some fancy algorithms about palindromes, Chouti found palindromes very interesting, so he wants to challenge you with this problem. Chouti has got two strings A and B. Since he l...
instruction
0
18,586
0
37,172
No
output
1
18,586
0
37,173
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. After learning some fancy algorithms about palindromes, Chouti found palindromes very interesting, so he wants to challenge you with this problem. Chouti has got two strings A and B. Since he l...
instruction
0
18,587
0
37,174
No
output
1
18,587
0
37,175