Python Dictionary Exercise

Basic Dictionary Programs

• Sort by Key or Value
• Handling missing keys
• Keys having multiple inputs
• Find sum of all items
• Find size of a Dictionary
• Sorting – Using itemgetter
• Sorting – Using lambda function
• Merging two Dictionaries
• Create grade calculator
• Insertion at beginning in OrderedDict
• Check order of character using OrderedDict( )
• Common elements in sorted arrays by dictionary intersection
• Dictionary and counter to find winner of election
• Key with maximum unique values
• Find all duplicate characters in string
• Group Similar items to Dictionary Values List
• K’th Non-repeating Character
• Replace String by Kth value
• Remove a key from dictionary
• Replace words from Dictionary
• Remove Key Words
• Remove duplicates words from a given sentence
• Remove duplicate values across Values
• Find mirror characters in a string
• Counting frequencies using dictionary
• Values Mean
• Counter and dictionary intersection
• Dictionary, set and counter to check if frequencies can become same
• Scraping And Finding Ordered Words
• Possible Words using given characters
• Maximum record value key
• Extract values of Particular Key in Nested Values

Basic Practice Problems

• Intro to Dictionary
• Dictionary
• Longest Subarray with Sum K
• Sort According to an Array

Conversion of dictionary

• Convert Key-Value list Dictionary to List of Lists
• Convert List to List of dictionaries
• Convert Lists of List to Dictionary
• Convert List of Dictionaries to List of Lists
• Convert key-values list to flat dictionary
• Convert a list of Tuples into Dictionary
• Convert Nested dictionary to Mapped Tuple
• Convert string to dictionary
• Convert dictionary to K sized dictionaries
• Convert Matrix to dictionary

Advance Dictionary Programs

• Create Nested Dictionary using List
• Swapping Hierarchy in Nested Dictionaries
• Inversion in nested dictionary
• Reverse Dictionary Keys Order
• Extract Key’s Value, if Key Present in List and Dictionary
• Remove keys with Values Greater than K ( Including mixed values )
• Remove keys with substring values
• Dictionary with maximum count of pairs
• Append Dictionary Keys and Values
• Extract Unique values
• Keys associated with Values
• Filter dictionary values in heterogeneous
• Print anagrams together
• Check if binary representations of two numbers are anagram
• Counter to find size of largest subset of anagram word
• Count of groups having largest size while grouping according to sum of its digits
• Sort Dictionary key and values List
• Sort Dictionary by Values Summation
• Sort dictionaries list by Key’s Value list index
• Sort Nested keys by Value
• Scoring Matrix
• Factors Frequency
• Count distinct substrings of a string
• Build an undirected graph and finding shortest path
• LRU Cache using OrderedDict

Advance Practice Problems

• First Repeating Element
• Print Anagrams Together
• Array Pair Sum Divisibility
• Check Equal Arrays
• Check Arithmetic Progression
• LFU Cache
• LRU Cache
• Phone directory