What is the answer to the Haruhi problem?

Pantone suggests that the answer to the “Haruhi” problem is that fans would, “need to watch at least 93,884,313,611 episodes to watch the season in any possible order. At most, you’d need to watch 93,924,230,411 episodes to accomplish the task.”

How do you calculate permutation of a string?

We can find the count without finding all permutation. Idea is to find all the characters that is getting repeated, i.e., frequency of all the character. Then, we divide the factorial of the length of string by multiplication of factorial of frequency of characters.

Is there an anime about math?

Well, not exactly an anime but the closest thing to it. A manga called “Sushi Kokuu Hen” is probably the thing you are looking for. It’s central theme is mathematics, not the boring “1 + 1 = 2” kind, no, it revolves around really big numbers. They literally try to teach you about those big numbers by using mathematics.

How did 4chan solve math problems?

The 1993 paper suggested one part of that solution. But in 2014, Houston figured out that the math used in the 1993 problem didn’t work for sets containing more than six numbers. Eventually, one of them found the 4chan proof, and all those numbers and symbols started to fall into place.

How do you find the permutation of a string in Java?

Algorithm

1. STEP 1: START.
2. STEP 2: DEFINE string str = “ABC”.
3. STEP 3: len = str. length().
4. STEP 4: PRINT “All the permutations of the string are:”
5. STEP 5:CALL generatePermutation(str, 0, len).
6. STEP 6: END.

How do you create a permutation?

If n is odd, swap the first and last element and if n is even, then swap the ith element (i is the counter starting from 0) and the last element and repeat the above algorithm till i is less than n. In each iteration, the algorithm will produce all the permutations that end with the current last element.

How do you print the shortest common Supersequence?

If the characters corresponding to current cell (i, j) in X and Y are same, then the character is part of shortest supersequence. We append it in output string and move diagonally to next cell (i.e. (i – 1, j – 1)).

How do you find the smallest substring which contains all characters from a given string?

Method 1 ( Brute force solution )

1. Generate all substrings of string1 (“this is a test string”)
2. For each substring, check whether the substring contains all characters of string2 (“tist”)
3. Finally, print the smallest substring containing all characters of string2.

How do you check if a string contains only digits?

Using Regular Expression:

1. Get the String.
2. Create a Regular Expression to check string contains only digits as mentioned below: regex = “[0-9]+”;
3. Match the given string with Regular Expression.
4. Return true if the string matches with the given regular expression, else return false.

How do you print all possible combinations of a string in Python?

To find all possible permutations of a given string, you can use the itertools module which has a useful method called permutations(iterable[, r]). This method return successive r length permutations of elements in the iterable as tuples.

What is the shortest superstring problem?

We may assume that no string in arr [] is substring of another string. Shortest Superstring Problem is a NP Hard problem. A solution that always finds shortest superstring takes exponential time. Below is an Approximate Greedy algorithm.

How to in-place find all permutations of a string in Python?

We can in-placefind all permutations of the given string by using backtracking. The idea is to swap each of the remaining characters in the string with its first character and then find all the permutations of the remaining characters using a recursive call.

Which string substring contains all the characters of pattern?

Given two strings, string1 and string2, the task is to find the smallest substring in string1 containing all characters of string2 efficiently. Explanation: “t stri” contains all the characters of pattern.

How greedy algorithm is proved to be 4 approximate?

The above Greedy Algorithm is proved to be 4 approximate (i.e., length of the superstring generated by this algorithm is never beyond 4 times the shortest possible superstring). This algorithm is conjectured to 2 approximate (nobody has found case where it generates more than twice the worst).