visualising data structures and algorithms through animation
Do You Know? Next Random Tip
VisuAlgo is a trilingual site. Try visiting the other versions of VisuAlgo other than the default English version, e.g., Chinese or Indonesian. Users can see the translation statistics for these three pages (we strive to make all three near 100% soon). Unfortunately the translation progress with other languages are too far behind and they are thus redirected to English.
In VisuAlgo, you can use your own input for any algorithm instead of using only the provided sample inputs. This is one of the key feature of VisuAlgo. Try the graph drawing feature in these 6 graph-related visualizations: Graph DS, DFS/BFS, MST, SSSP, Max Flow, and Matching. You can also click tag 'graph' in any of these 6 graph-related visualization boxes or type in 'graph' in the search box.
On Wednesday, 22 December 2021, VisuAlgo moves to a new system. Here are some more noticeable visualization upgrades: /heap (try Compact Array mode plus PartialSort(), UpdateKey(i, newv), and Delete(i) operations), /bitmask (clearer this time), /ufds (more examples and new initialization mode).
To compare 2 related algorithms, e.g., Kruskal's vs Prim's on the same graph, or 2 related operations of the same data structure, e.g., visualizing Binary (Max) Heap as a Binary Tree or as a Compact Array, open 2 VisuAlgo pages in 2 windows and juxtapose them. Click here to see the screenshot. This juxtaposition technique can be used anytime you want to compare two similar data structures or algorithms.
VisuAlgo loads fast for first time visitors (we use Cloudflare global CDN), but it loads 'almost instantly' for returning visitors as we also cache lots of static content of VisuAlgo :). So, do not use incognito or private browsing mode to keep the cache. Moreover, for NUS students with VisuAlgo accounts, we will load VisuAlgo according to your preferences/class setup after you login.
Each visualization page has an 'e-Lecture Mode' that is accessible from that page's top right corner. This mode is automatically shown to first time (or non logged-in) visitors to showcase the data structure or algorithm being visualized. The quality of e-Lecture Mode will gradually be made to reach the lecture standard of algorithm classes in National University of Singapore :).
VisuAlgo has two main components: The visualization pages (currently 24) and the Online Quiz component (currently 12 and will be 24 too very soon). We do not script any of the questions in Online Quiz :O and all answers will be graded almost instantly :). You can this online quiz system by clicking the 'Training' button on the visualization module.
Search the term 'algorithm visualization' in your favorite Search Engine, do you see VisuAlgo in the first page of the search result :)? Next level: Search that term again, but in Chinese or Indonesian :). Lastly, search the name of your favorite data structure or algorithm without mentioning the keyword 'animation' or 'visualization'. Sometimes VisuAlgo is still listed in the first page :).
VisuAlgo has about ~9000 unique visitors/day from various CS students and teachers worldwide (information from the privacy-conscious Cloudflare Web Traffic Analytics). Although this is a good number, we will keep improving VisuAlgo so that it can be even more useful for much more (new) CS students worldwide annually. Please spread the word if you are our returning visitors and like this tool :).