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51:50 Section 10/19/21: data structures for trees Section 10/19/21: data structures for trees	Section 10/19/21: data structures for trees Zoom Recording ID: 95071859677 UUID: I9oDNFt7Sfm4q0Y1iLzJTg== Meeting Time: 2021-10-19T18:31:00Z things tree selection sort thing depth swaps algorithms bit structure quicksort splits decision lot model instance lists algorithm level minimum From Madeleine Udell 22 plays
07:28 Lesson28.8 List Comprehension (OPTIONAL) Lesson28.8 List Comprehension (OPTIONAL)	Lesson28.8 List Comprehension (OPTIONAL) This video is not optional because the material is advanced. It is optional because this video series has run long and this topic is less important for you to know. When we are done with out… comprehension expression generator things loop thing element function materialization tuple question rows table transpose elements idea accumulator lists loops columns From Hannah Lee 14 plays Content Categories Instructional Recordings Creation Date December 04, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:21 Lesson 26.6 Mutable While-Loops Lesson 26.6 Mutable While-Loops	Lesson 26.6 Mutable While-Loops In this video we show that the one place we typically prefer while-loops is when we are modifying a list or other mutable iterable. While we did see how to do this with for-loops (by looping over… loop function position length iterator range 3s problem loops comma functions eye lists element rim cases goal thing change condition From Hannah Lee 48 plays Content Categories Instructional Recordings Creation Date November 12, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
52:31 Zoom Oct. 22. More Recursion Zoom Oct. 22. More Recursion	Zoom Oct. 22. More Recursion The divide-and-conquer examples we saw in the previous session were on the easy side. In this session we look at some much more challenging examples.Included in this session is segregate, the most… exam thing recursion alright lists fact question function numbers ladder string test letter element call tests left videos questions dictionaries From Hannah Lee 21 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:45 Lesson 19.4 Nested Dictionaries Lesson 19.4 Nested Dictionaries	Lesson 19.4 Nested Dictionaries In this video we show that we can nest dictionaries just like we nested lists. In fact, a lot of real world data is represented this way. We show off a particularly complicated JSON file that… dictionary dictionaries json weather key keys fact lists values units visibility hour timestamp things strings string tool airport 31st assignment From Hannah Lee 51 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:52 Lesson 19.1 Dictionary Expressions Lesson 19.1 Dictionary Expressions	Lesson 19.1 Dictionary Expressions In this video, we introduce a dictionary as a collection of key-value pairs. We also show how to write a dictionary expression in Python. It looks just like a JSON string, but without the quotes. dictionary key dictionaries keys net values string pairs json lists strings names ids cornell things john assignment fact thing python From Hannah Lee 62 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:12 Lesson 18.6 Mutable Table Functions Lesson 18.6 Mutable Table Functions	Lesson 18.6 Mutable Table Functions In this video we show how to write a mutable function on a table of data. Once again, this is very similar to writing an mutable function on a traditional list. table row loop rows column function folder thing contents lists strip positions range operator deletion level copy slicing frame call From Hannah Lee 48 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:49 Lesson 18.5 Immutable Table Functions Lesson 18.5 Immutable Table Functions	Lesson 18.5 Immutable Table Functions In this video we show how to write an immutable function on a table of data. In most ways this is no different than writing an immutable function on a list. Except that this time we may need multiple… table row loop rows accumulator columns column loops result function elements functions lists accumulators positions length thing string copy rho From Hannah Lee 52 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:24 Lesson 18.4 Nested Slicing Lesson 18.4 Nested Slicing	Lesson 18.4 Nested Slicing Slicing a list creates a copy. In this video we show what this means for nested lists. In particular, we show that sometimes a copy is not really a copy after all, and that we have to distinguish… copy row rows folder b. change table thing slice function x. level lists alright element tutor specification practice folders terminal From Hannah Lee 52 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:38 Lesson 18.2 Nested Lists Lesson 18.2 Nested Lists	Lesson 18.2 Nested Lists In this video we show how to handle the special case when the objects inside of a list are other lists. In particular, we show how to chain together brackets to drill down into nested lists. lists folder level variable bracket reference folders length elements brackets position columns table thing things python tables types garbage statement From Hannah Lee 58 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
02:43 Lesson 18.1 List of Objects Lesson 18.1 List of Objects	Lesson 18.1 List of Objects Lists require that we explicitly show the folder when visualize them. In this video we show what that means when a list contains other objects that have their own folders. The result is a chain of… folder folders colors color primitives objects tutor lists idea cs intro numbers x. series expression end rgb class tab issue From Hannah Lee 43 plays Content Categories Instructional Recordings Creation Date October 27, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
53:23 Zoom Oct. 13. Lists (and Sequences) Zoom Oct. 13. Lists (and Sequences)	Zoom Oct. 13. Lists (and Sequences) In this session we review the two new sequence data types: tuples, and lists. This is the last material on the first prelim.For the most part these are similar to strings, and so we will do a lot of… exam tuple thing assignment question lists position things element answer tuples lot call thursday lab hours material function questions alright From Hannah Lee 10 plays Content Categories Instructional Recordings Creation Date October 19, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:50 Lesson 16.6 Mutable For-Loops Lesson 16.6 Mutable For-Loops	Lesson 16.6 Mutable For-Loops Lists are mutables and support mutable functions. Many of these mutable functions contain for-loops. As we show in this video, this changes how we write the for-loop. In particular, we will not use… loop function position folder positions element accumulator copy range tutor lists increment problem frame call x. fact numbers argument problems From Hannah Lee 47 plays Content Categories Instructional Recordings Creation Date October 19, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
11:34 Lesson 16.3 Accumulators Lesson 16.3 Accumulators	Lesson 16.3 Accumulators One of the techniques that we say in the previous video was the accumulator variable. In this video we show that this is a general technique used in a fruitful function that requires a for-loop. accumulator string function variable space character folder element copy lists spaces tutor loop result parameter front letter functions strings thing From Hannah Lee 58 plays Content Categories Instructional Recordings Creation Date October 19, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
03:50 Lesson 15.7 Mutable List Functions Lesson 15.7 Mutable List Functions	Lesson 15.7 Mutable List Functions Because lists are mutable, just like general objects, we can modify them in the body of a function. In this video we show how to write mutable list functions, which are (typically) procedures that… function position swap positions return lists folder parameters procedure functions frame call parameter objects practice elements module tuple tuples computation From Hannah Lee 48 plays Content Categories Instructional Recordings Creation Date October 10, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
03:28 Lesson 15.6 List Methods Lesson 15.6 List Methods	Lesson 15.6 List Methods Lists have many of the same methods as tuples. But since they are mutable, they have even more. In this video we show off some of the mutable methods of lists, which are methods that can alter the… method lists position numbers methods things append end structures documentation folder reason string strings element elements contents objects tuples series From Hannah Lee 47 plays Content Categories Instructional Recordings Creation Date October 10, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search