Think about when Huffman’s algorithm does reduce required bit transmission. Use Huffman’s algorithm on the following string: “catsatonhatcathat” (counting the frequencies to make your own frequency histogram).

Could you help with the code and explanation?

please solve this in python

I need the answer as soon as possible

Consider the following program that creates a dictionary counting characters. Complete the code below so that the Python dictionary letters contains the count of each character in the line. Once completed the last line of the program should print 8, the number of spaces in the line. line = "The quick brown fox jumps over the lazy dog" letters = {} for c in line: print (letters [' '])

Write a function that will accept a dictionary as the input parameter and return a new dictionary where all of the key-value pairs are reversed. For example, if I pass in {"one": 1, "two": 2, "three":3}` I would be returned a dictionary that looked like '{"three": 3, "two":2, "one": 1}

Write a Python program that takes a String as an input and counts the frequency of each character using a dictionary. For solving this problem, you may use each character as a key and its frequency as values. [You are not allowed to use the count() function] Hint: You can create a new dictionary to store the frequencies. Ignore case for simplicity (i.e. consider P and p to be the same). keys need to be lower case Do not count space. Remove space before counting. example :  Sample Input:"Python programming is fun" Sample Output:{'p': 2, 'y': 1, 't': 1, 'h': 1, 'o': 2, 'n': 3, 'r': 2, 'g': 2, 'a': 1, 'm': 2, 'i': 2, 's': 1, 'f': 1, 'u': 1} def task11(in_str):  # YOUR CODE HERE       return dict_out # please use in_str and dict_out

There is a string of characters G = g1,g2,g3,...sn with no non-alphabetic characters (i.e no punctuation or spaces). You are also given a function dict(b,i,j), with an input of string b and two indices (i&j). This function will return true if bi...j is a word in the dictionary, and false if not. Please provide a simple dynamic programming solution that can determine if the string F is a sequence of valid dictionary words. State the size of the table, how the table is filled, which elements are filled in first, and where the solution is found. Please find the running time of the algorithm (assume that all calls to the function are O(1)).

How would you implement a dictionary of a reasonably small size n of you knew that all its elements are distinct (e.g., names of the countries in the world)? Specify an implementation of each dictionary operation.

python Using try/except block and a for loop