find the longest word in a string python

Variable "n" finds the longest word from "res" which has removed all the non-string charcters like %,&,! 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Preview of Search and Question-Asking Powered by GenAI. The Journey of an Electromagnetic Wave Exiting a Router. In this, we run a loop to keep a memory of longest string length and return the string which has max length in list. Ah, even better: o.i = ''; ([setattr(o,'i',x) for x in s.split() if len(x) > len(o.i)], o.i)[1], New! So the solution looks like: second_longest = sorted (list_name, key=len) [-2] Richard MacCutchan 4-Nov-21 12:37pm Set the initial shortest word to be the first word in the list. Not the answer you're looking for? Does Python have a ternary conditional operator? Three Ways to Find the Longest Word in a String in JavaScript By using our site, you rev2023.7.27.43548. Asking for help, clarification, or responding to other answers. 2 x 2 = 4 or 2 + 2 = 4 as an evident fact? I fixed it so now it returns [5, 1, 4, 7] and then I just take the maximum value. Making statements based on opinion; back them up with references or personal experience. Method #3 : Using reduce() + lambdaIn this method, we use the reduce() function from the functools module, and pass a lambda function as the first argument, which compares the length of the current and next elements and returns the element with the maximum length. Why do code answers tend to be given in Python when no language is specified in the prompt? What is known about the homotopy type of the classifier of subobjects of simplicial sets? How to find the longest word with python? Need to be careful with .split(" ") as this will not split all spaces. Python program to Find the Longest Word in a String How can I use ExifTool to prepend text to image files' descriptions? A first approach is to go through the list and detect start or end of words: A final way is to split words in a generator and find the max of what it yields (here I used the max function): Just search for groups of non-whitespace characters, then find the maximum by length: For python 3. How to find the longest word with python? - Stack Overflow import sys You never use this. EDIT: I'm sorry, I misread the exam question. It also prints the longest word length in a. 5. What information do you need to track? rev2023.7.27.43548. How common is it for US universities to ask a postdoc to bring their own laptop computer etc.? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Why was Ethan Hunt in a Russian prison at the start of Ghost Protocol? Who are Vrisha and Bhringariti? I like the generator/max approach, it is elegant and modular. And what is a Turbosupercharger? Longest word in a string using python programming, I am trying to find the maximum length word in a sentence, How to extract longest possible words from a string in python, Finding the longest length of word in the list Python. What do multiple contact ratings on a relay represent? Use the index() method on the lengths list to find the index of the longest string. 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Shortest Common Superstring: find shortest string that contains all given string fragments, Try to find a word in the dictionary that has most letters given, Word recognition in a string without spaces or punctuation marks, Algorithm for optimizing text compression. 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Preview of Search and Question-Asking Powered by GenAI. Is there an easy way to get longest word that contains a certain letter? It only takes a minute to sign up. This is when while loop stops. Another way to find longest word in string: Thanks for contributing an answer to Stack Overflow! longest("F") => "F", Unfortunately am getting this error when I try to test the code In this case it is "sentence" however, simply change return(len(s)) which would output howmany characters are in the longest word which would be 8. Connect and share knowledge within a single location that is structured and easy to search. This is by no means elegant, and it does assume that your string is separated by a single space between words, but it's pretty quick. How do I find the location of my Python site-packages directory? python - How to find the longest word in a string without using split How can I find the longest word in a string? si points to the starting of a new word and we traverse the string using ei. This does not return the word of maximum length, and it does not solve the OP's problem of not returning the last word if it's the longest. Hello guys I am still an armature in python was hoping if anyone could help with this solution. Thanks for contributing an answer to Stack Overflow! Please see my recent edit. The time complexity of this algorithm is O(n log k), where n is the length of the list and k is the number of elements to be returned. I know you already have a few answers. (I'm using Python but what I'm looking for is more of a pseudocode or a general algorithm). You only have to return the length of the longest word it seems, not the length + the word. Here is your code with an addition that checks the last word (len) when p == -1 just as the loop is going to exit. Variable "res" finds all the words in the string and itself stores them in the list after splitting them. Can an LLM be constrained to answer questions only about a specific dataset? My program should then return "Cookies" and the length 7. Time Complexity: O(n)Auxiliary Space: O(n). Move the print statement outside of the loop, so it only prints after the processing is finished. When you pass a string into the built-in max, it will compare the characters lexicographically - according to the order in which they appear in the ASCII table. Remember this quote (attribute to J. Zawinski): Some people, when confronted with a problem, think "I know, I'll use regular expressions." Call max (lst, key=len) to return the longest string in lst using the built-in len () function to associate the weight of each stringthe longest string will be the maximum. How to Find the Longest String in List in Python - The Programming Expert Why can't you use split? Contribute to the GeeksforGeeks community and help create better learning resources for all. What capabilities have been lost with the retirement of the F-14? Are the NEMA 10-30 to 14-30 adapters with the extra ground wire valid/legal to use and still adhere to code? max () function takes two arguments, the iterable and other argument is key. Thanks for contributing an answer to Stack Overflow! Sorting is more expensive than a linear search using, New! Store the length of the current word, and the length of the longest. Eliminative materialism eliminates itself - a familiar idea? How to display Latin Modern Math font correctly in Mathematica? How can I find the longest word in a string? Why do code answers tend to be given in Python when no language is specified in the prompt? Want to improve this question? Python: Find Shortest or Longest Word in String - PyTutorial Write a program in python to read string and print longest word and its Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. Find centralized, trusted content and collaborate around the technologies you use most. Pythonic methods of returning the longest word in a string, Longest word in a string using python programming, I am trying to find the maximum length word in a sentence, How to extract longest possible words from a string in python, Finding the longest length of word in the list Python. You can just extract that word from the string. Why do we allow discontinuous conduction mode (DCM)? So I came up with two options that do the job but I feel like they're breaking some best practices: From this one I dislike this part (but I had to do it or I would be missing the last word in the string: because I'm duplicating the concatenation, both in the "if" block and the "else" block. Is this deliberate? Program to find Smallest and Largest Word in a String 1. Can an LLM be constrained to answer questions only about a specific dataset? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. In option 1, it does concatenation once, in two places (in both the if and else statement). To use the reduce() function to get the longest value in a list, we can use a function that compares two strings, returns the one with the larger length, and apply it cumulatively to the entire list. def longestword (x): alist = [] length = 0 for letter in x: if letter != " ": length += 1 else: alist.append (length) length = 0 return alist But it returns [5, 1, 4] for "Hello I like cookies" so it misses "cookies". A. How to find the longest word with python? Besides using regular expressions, you can simply check that the word has letters. Is any other mention about Chandikeshwara in scriptures? Are self-signed SSL certificates still allowed in 2023 for an intranet server running IIS? Is any other mention about Chandikeshwara in scriptures? rev2023.7.27.43548. Python | Extract length of longest string in list - GeeksforGeeks What is known about the homotopy type of the classifier of subobjects of simplicial sets? Find longest word in a string: are any of these algorithms good? I too felt weird using, Watch out, this answer assumes Python 2. Could the Lightning's overwing fuel tanks be safely jettisoned in flight? OverflowAI: Where Community & AI Come Together, Find the length shortest word in a string in Python [duplicate], Finding the shortest string in a string of words in python, Behind the scenes with the folks building OverflowAI (Ep. rev2023.7.27.43548. Then you just need to keep the longest word (longest index difference) and you should find your answer. step-by-step algorithm for implementing the approach: Use a list comprehension to create a new list of string lengths. ^ By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The max() + key is used to perform the task and it takes O(n) time.Auxiliary Space: O(1) constant additional space is created. JavaScript: Find the longest word within a string - w3resource Python Program to Find Longest Word From Sentence - Codesansar Please delete the comment and UPDATE the question with the new information. Can an LLM be constrained to answer questions only about a specific dataset? Variable "n" uses lambda expressions to define the key len() here. The British equivalent of "X objects in a trenchcoat". For What Kinds Of Problems is Quantile Regression Useful. How to handle repondents mistakes in skip questions? What is known about the homotopy type of the classifier of subobjects of simplicial sets? They're well-solved problems and often available in source form. Thanks for contributing an answer to Stack Overflow! In this, we use recursive function to extract the string with the maximum length. Python 2: It gets complicated for Python 2. But it returns [5, 1, 4] for "Hello I like cookies" so it misses "cookies". My cancelled flight caused me to overstay my visa and now my visa application was rejected. To perform this task we follow the below steps- Read the String from user. Is there a third option I'm missing? Actually, when I removed 'Mary' in word, the output shows is(2) and Little(6) This article is being improved by another user right now. "Pure Copyleft" Software Licenses? Python: Find the longest word in a string. Are modern compilers passing parameters in registers instead of on the stack? Edit: I only needed to return the length but I appreciate your answers for the original question! Then pass the key=len as a second argument to compare the length of the strings and . Asking for help, clarification, or responding to other answers. OverflowAI: Where Community & AI Come Together, How to find the longest word in a string without using split method, Python: Find the longest word in a string, Behind the scenes with the folks building OverflowAI (Ep. Python3. @media(min-width:0px){#div-gpt-ad-pytutorial_com-box-4-0-asloaded{max-width:728px;width:728px!important;max-height:90px;height:90px!important}}if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'pytutorial_com-box-4','ezslot_7',198,'0','0'])};__ez_fad_position('div-gpt-ad-pytutorial_com-box-4-0'); Here are the steps to get the longest word in a string: Output:@media(min-width:0px){#div-gpt-ad-pytutorial_com-leader-2-0-asloaded{max-width:336px;width:336px!important;max-height:280px;height:280px!important}}if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'pytutorial_com-leader-2','ezslot_10',600,'0','0'])};__ez_fad_position('div-gpt-ad-pytutorial_com-leader-2-0'); Follow these steps to find the shortest word in a string: As you can see, "the" is the shortest word in the list. Here is the source code of the C Program to Find the Longest word in a string. OverflowAI: Where Community & AI Come Together, Python: Find the longest word in a string, Behind the scenes with the folks building OverflowAI (Ep. Alaska mayor offers homeless free flight to Los Angeles, but is Los Angeles (or any city in California) allowed to reject them? How would you do that? @Blender thank you for pointing that out. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How are you ?" Sometimes it will be equal to character count: >>> print(len('abc')) 3 But sometimes, it won't: >>> print(len('')) # String contains Cyrillic symbols 6 Insert some strings: my, java, tutorial, with python, cpp tutorials, learn web development Align \vdots at the center of an `aligned` environment. def findLen (str): counter = 0. I am not allowed to use string.split() (otherwise there wouldn't be any problem) and the solution shouldn't have too many for and while statements. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. What Is Behind The Puzzling Timing of the U.S. House Vacancy Election In Utah? Thanks, I'll look at this some more. But, The output shows two words, Mary(4) and Little(6). Now, given your string, how would you build a list of all word lengths? Easiest way to find the smallest word is to use min function along with the len function as key : >>> s = 'Happy day' >>> l = s.split () >>> min (l, key=len) => 'day' Similarly, for finding the longest word, use max : >>> max (l, key=len) => 'Happy' Now the easy part, for getting its length, enclose the above in len function : programming, Python program to How to find given number is Positive or Negative, Python Program to Detect Even and Odd Number, Python Program to Detect the Greatest of Three Numbers, Python Program to Check for Divisibility of a Number, Python Program to Convert from Celsius to Fahrenheit, Python Program to Convert from Fahrenheit to Celsius, Python Program to Simple Thermometer (Celsius/Fahrenheit), Python Program to Calculate Mass, Density and Volume, Python Program to Detect the Coordinate of a Point, Python Program to Check for Existence of a Triangle, Python Program to Check for Existence of a Circle, Python Program to create quadratic Equation, Python Program to Make Guess of Random Number, Python Program to Print Out the ASCII Table, Python Program to Create a Multiplication Table Using While Loop, Python Program to Create Multiplication Table Using for Loop, Python Program to Convert from Base 2 to 9, Python Program to Build a Simple Calculator, Python Program to Detect Number of Digits in an Integer, Python Program to Get Sum and Products of Digits, Python Program to Make a Binary Search of Number in an Array, Python Program to Get Sum of N Series of an Element, Python Program to Get Number of Even and Odd Digits, Python Program to Get Factorial Using a While Loop, Python Program to Get Factorial Using for Loop, Python Program to Create a Fibonacci Sequence, Python Program to Get the Value of Fibonacci Element, Python Program to Get Find the Greatest Common Divisor, Python Program to Get Maximum Value of a Floating-Point Number, Python Program for Quadratic Equations with Solutions at Specified Range of, Python Program to Expand Strings of Alphabet, Python Program to Replace a Substring of a String, Python Program to Select Integers from String, Python Program to Sort Words According to Their Length, Python Program to Find the Longest Word in a String, Python Program to Get Percentage of Uppercase and Lowercase, Python Program to Check for String Palindrome, Python Program to Generate Random Numbers Using Arrays, Python Program to Get the Maximum Element in an Array, Python Program to Get the Minimum Element in an Array, Python Program to Get the Number of Even and Odd Numbers, Python Program to Get Positive Numbers Out of Negative Numbers, Python Program to Get Numbers Greater than the Average of an Array, Python Program to Replace List Items With -1, 0, 1, Python Program to Check for File Extension, Python Program to Remove Exclamation Mark (!) Easiest way to find the smallest word is to use min function along with the len function as key : Similarly, for finding the longest word, use max : Now the easy part, for getting its length, enclose the above in len function : If you only want to know the length, and not the actual word, you can use: Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. This is not the questions' answer, it returns the highest word by alphabetical order. I think the "straightforward approach" would use, @PatriceLevesque well, in a lazy language like Haskell the split approach (maximumBy (comparing length) . Why do we allow discontinuous conduction mode (DCM)? The goal here wasn't to remove concatenation entirely (and indeed, without using split, there's only a few options for that - one of which is in the other answer provided by Simon B). Do the 2.5th and 97.5th percentile of the theoretical sampling distribution of a statistic always contain the true population parameter? Find the Longest word in a string - csinfo360.com OverflowAI: Where Community & AI Come Together. What is Mathematica's equivalent to Maple's collect with distributed option? How can I change elements in a matrix to a combination of other elements? Get rid of it. How to display Latin Modern Math font correctly in Mathematica? For example: string = "Hello I like cookies". Connect and share knowledge within a single location that is structured and easy to search. Finding the longest word in a string in python - Stack Overflow Finding the longest word in a string in python [closed] Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago Viewed 88 times 0 Closed. @FrancisColas my bad again. 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Preview of Search and Question-Asking Powered by GenAI. We haven't talked about regular expressions I think. Given you are not allowed to use string.split() I guess using a regexp to do the exact same thing should be ruled out as well. In this case, we are only returning the single longest string, so k = 1, and the time complexity simplifies to O(n log 1) = O(n). This question was caused by a typo or a problem that can no longer be reproduced. Finding the longest word in a string in python - Stack Overflow What is the use of explicitly specifying if a function is recursive or not? Here we get "time" because lambda expression discards "zone" as it sees the key is for len() in a max() function. Below is a Python function which will find the longest string in a list. Am I betraying my professors if I leave a research group because of change of interest? 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You can set p to None if the find method returns -1 so that ch[:p] would slice the rest of the string to get the last word: this is a very long and probably the worst method as far as Big 'O' Notation is concerned but it is a simple approach for beginners. The British equivalent of "X objects in a trenchcoat". freeCodeCamp Challenge Guide: Find the Longest Word in a String Is there an easy way to get longest word that contains a certain letter? @ChaseRoberts Ok no problem, remove the call to. The key=len specifies that we must obtain the word depending on its length, and we will obtain the maximum length word using the max () function and the length of the maximum length word using the len () function. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Hint 2 You will need to figure out a way to keep track globally of the greatest current length. Key = len to extract the string with the maximum length. The strings contains only letters and blanks and words are separated by one single blank. Not the answer you're looking for? The best answers are voted up and rise to the top, Not the answer you're looking for? An alternative is to treat the string as a list, iterate over it keeping track of your index, and looking at each character to see if you're ending a word. To learn more, see our tips on writing great answers. (I'm using Python but what I'm looking for is more of a pseudocode or a general algorithm). Throughout this tutorial, we used the split method to find the shortest and longest words in a given string. I'm struggling with the last word (or the last character). We slice a string making it shorter by 1 at each iteration will eventually result in an empty string. It says in the exam question that "The text contains only letters and blanks, and each word is separated by one single blank". Update the question so it focuses on one problem only by editing this post. Write a python program to find longest word from text file with Practical Example Program Logic: Open text file say 'name.txt' in read mode using open function Pass file name and access mode to open function Making statements based on opinion; back them up with references or personal experience. How is this different to OPs Option 1, except done as recursion, rather than iteration? Better use this. Is there an easy way to get longest word that contains a certain letter? Any suggestions? How to find the longest word in a string without using split method Ask Question Asked 2 years, 7 months ago Modified 2 years, 7 months ago Viewed 967 times 0 I need an algorithm that can find the longest word in a string, I can't use split (), the only predefined function I can use is find () and I don't think it's useful for this solution. I've successfully had it pick out the length of the longest word: So if the input is "happy day", my print function tells me that the longest word is 5 characters. What is Mathematica's equivalent to Maple's collect with distributed option? Now the thing is that I am not allowed to use any function from the class String for a full score, and for a full score I can only go through the string once. 2. Why is {ni} used instead of {wo} in ~{ni}[]{ataru}? Find the longest word in the list using max (List, key=len) . How and why does electrometer measures the potential differences? This kind of problem can have applications in many domains. rev2023.7.27.43548. Then it's fine? How to display Latin Modern Math font correctly in Mathematica? 5 Answers Sorted by: 39 If I understand your question correctly: >>> s = "a aa aaa aa" >>> max (s.split (), key=len) 'aaa' split () splits the string into words (seperated by whitespace); max () finds the largest element using the builtin len () function, i.e. Why do we allow discontinuous conduction mode (DCM)? Is that the essence of your question? @StefanPochmann : yeah. Time complexity: O(n log n) sorting the list takes O(n log n) time in the worst case.Auxiliary space: O(n) we need to create a sorted copy of the list. (with no additional restrictions). PS: There's an assumption in your code that words are always separated by spaces, and that there's no other form of punctuation. Connect and share knowledge within a single location that is structured and easy to search. Maintaining a count of the number of iterations will result in the length of the string. Here's the code definition of the get_max_str () function that takes a list of strings as input and returns the longest string in the list or a ValueError if the list is empty. Let's look at an example. This iterates through each string in the original list and applies the len() function to get the length of each string.