4. This question was voluntarily removed by its author. Active 1 year, 4 months ago. Thank you! How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)? Does Python have a ternary conditional operator? sed command – sed 's/test/toast/' – not replacing all 'test' in file. Use MathJax to format equations. Do all threads share the same instance of a heap variable, or have different instances of a heap variable? Stack Overflow for Teams is a private, secure spot for you and Perhaps you preprocessed your downloaded word list to make it lowercase? I have written a Boggle board solver in Python 3. That immediately tells me that it's not worth looking for faster ways to do the dictionary_check until get_permutations is much faster. Do more massive stars become larger or smaller white dwarfs? Letters may not be re-used. Manually raising (throwing) an exception in Python. Thanks, I will now work on trying to block recursive builds for word prefixes that will never form a word such as "plt", How to write an effective developer resume: Advice from a hiring manager, Podcast 290: This computer science degree is brought to you by Big Tech, “Question closed” notifications experiment results and graduation, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…, Solving the game WordBrain using brute force, Minimax algorithm for tic tac toe in Python, Improving time complexity for Count the Islands DFS. Go to the editor Click me to see the sample solution. August 18, 2016 martin. The first rule of getting a job done faster is "The fastest work is the work you don't do.". This is a solver for the game “Boggle”. Does PostgreSQL always sequentially scan pages in the same order? Is it against the rules to see someone's exam answers after the exam? MathJax reference. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Boggle in Python. What is this hole above the intake of engines of Mil helicopters? The first few lines are just the call sequence in: for example there's a lot of time (cumtime) spent in find_words but almost all of it is in functions that it's calling and very little in the function directly (tottime). I have a coding challenge in our school to simulate a boggle game. This is the result of running cprofile. I went with my internal clock, when what I should do is use a tool. If, then, your running_string is "plt" then all future strings you find are guaranteed to get filtered out at the end. To learn more, see our tips on writing great answers. If you want to get much faster, however, you'll need to change your approach to the problem. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Related Course: Python Programming Bootcamp: Go from zero to hero. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Why a termination condition? It only takes a minute to sign up. Is the word ноябрь or its forms ever abbreviated in Russian language? Solving the Boggle Game - Recursion, Prefix Tree, ... (Python) to not solving it because I don't want to wait that long. For option 2, you'd want to use one board and keep track of what you're changing (and, depending on your implementation, perhaps exactly one copy of the board you never change). The above is trying for efficiency gains with minimal changes to the underlying algorithm. How to find individual probabilities of all numbers from a list? Generic word for firearms with long barrels. How do I concatenate two lists in Python? rev 2020.11.24.38066, The best answers are voted up and rise to the top, Code Review Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Please can you comment on general style improvements and if you can think of another method to solve this game, a hint as to what I should do for my next attempt. Two options occur to me: either look for a simpler board representation that is cheaper and easier to copy, or try to avoid the copies. Has anyone seriously considered a space-based time capsule? The data would be the same, but you'd avoid the overhead of copying all the extra lists. The problem with my solution is it is very slow. Here are some similar questions that might be relevant: If you feel something is missing that should be here, contact us. @Josiah I am so sorry. That is genuine time expenditure, and a good place to start hitting. Recursion examples Recursion in with a list Asking for help, clarification, or responding to other answers. To stop the function from calling itself ad infinity. I have updated the link. That would probably offer enough gains that you could remove your limit to length 8 words. I haven't done it myself and it's always dangerous guessing at performance, but I would be optimistic about getting four to five times faster with that second change. In Python, a function is recursive if it calls itself and has a termination condition. `Boggle is a word game in which letters are randomly placed in a 4x4 grid ... Algorithms Boggle Data Structures Python Recursion Post navigation. As for the changes I made they were just brushing up the code rather than changing the implementation. I notice that the question and code have been editted several times since I started this answer. Why do people call an n-sided die a "d-n"? Ask Question Asked 1 year, 4 months ago. Write a Python program of recursion list sum. That's not where you want to cut down. If a piece of software does not specify whether it is licenced under GPL 3.0 "only" or "or-later", which variant does it "default to"? Running the program, I immediately noticed that the get_permutations section was slow, and the dictionary_check section was many times faster. Its nice to know where the program was slow. I would like comments on readability and structure. Previous Post Reverse an array without affecting special characters Next Post Graph data structures. Although I said earlier and stand by that you don't need to start optimising dictionary_check, there may be some opportunities to benefit from knowing your word list while you explore the grid.