How do you find duplicate words in python?
I can see where you are going with sort, as you can reliably know when you have hit a new word and keep track of counts for each unique word. However, what you really want to do is use a hash (dictionary) to keep track of the counts as dictionary keys are unique. For example: Show
Now that will give you a dictionary where the key is the word and the value is the number of times it appears. There are things you can do like using
But there is even something better than that...
From there you want the list of words in sorted order with their counts so you can print them.
OUTPUT View Discussion Improve Article Save Article View Discussion Improve Article Save Article Prerequisite : Dictionary data structure Given a string, Find the 1st repeated word in a string. Examples: Input : "Ravi had been saying that he had been there" Output : had Input : "Ravi had been saying that" Output : No Repetition Input : "he had had he" Output : he We have existing solution for this problem please refer Find the first repeated word in a string link. We can solve this problem quickly in python using Dictionary data structure. Approach is simple,
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Output: had Time Complexity: O(length(words)) Auxiliary Space: O(length(dict)) ExplanationIn this program, we need to find out the duplicate words present in the string and display those words. To find the duplicate words from the string, we first split the string into words. We count the occurrence of each word in the string. If count is greater than 1, it implies that a word has duplicate in the string. In above example, the words highlighted in green are duplicate words. Algorithm
SolutionPythonOutput: Duplicate words in a given string : big black COutput: Duplicate words in a given string : big black JAVAOutput: Duplicate words in a given string : big black C#Output: Duplicate words in a given string : big Black PHPOutput: Duplicate words in a given string : big black Next Topic# How do you find duplicate words in a string Python?Python. string = "big black bug bit a big black dog on his big black nose";. #Converts the string into lowercase.. string = string.lower();. #Split the string into words using built-in function.. words = string.split(" ");. print("Duplicate words in a given string : ");. for i in range(0, len(words)):. count = 1;. How do you check if a word is repeated in Python?Approach is simple,. First split given string separated by space.. Now convert list of words into dictionary using collections. Counter(iterator) method. Dictionary contains words as key and it's frequency as value.. Now traverse list of words again and check which first word has frequency greater than 1.. How do I remove repeated words from a string in Python?1) Split input sentence separated by space into words. 2) So to get all those strings together first we will join each string in given list of strings. 3) Now create a dictionary using Counter method having strings as keys and their frequencies as values. 4) Join each words are unique to form single string.
How do you print repeated letters in a string in Python?Method 2:. Define a function which will take a word, m, n values as arguments.. if M is greater than length of word. set m value equal to length of word.. Now store the characters needed to be repeated into a string named repeat_string using slicing.. Multiply the repeat_string with n.. Now print the string.. |