CSCA20H3 Lecture Notes - Dic Entertainment, Canada Goose, Standard Streams

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cerisealligator589

28 Apr 2012

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Def: unordered, mutable collection of key/value pairs: recall that sets are unordered and distinctive terms. The keys form a set, so any particular key can appear at most once in a dictiorory: the keys are immutable, but the values associated with the key doeesn"t have to be immutable. -use the if k in d: print ". Here you need to know the methods for dictionrary, we will represent birds* eagle"+ in a more general form: d[ k"] So del d* k"+ is to remove an entry from a dictionary. First: dic ,similar to sets, which are unordered. Secondly , when looping alist, the values in the list * a","ba","c"+ , which is a", ba", c" , are: loop variable: =index. >>> for (i,v) in enumerate(a): print i,v. Note the different notation you use for dictiornary. But to call the value associated with the key, you need to use [: dictiornary* keyname"+

Related Questions

Question 8. [6 MARKS] Consider this code: def sort_guesses (guess_list, answer): (list of float, float) -> dict of (str: list of float) Return a new dictionary where each item in guess_list appears as an item in one of the dictionary's values lists: - each item less than answer is in a list associated with key 'low', - each item equal to answer is in a list associated with key 'correct', and - each item greater than answer is in a list associated with key 'high'. If there are no items associated with one of 'low', 'correct', or 'high', then that string should not appear as a key in the new dictionary. In the table below, we have outlined two test cases for sort_guesses. Add six more test cases chosen to test the function thoroughly. R eturn Value Test Case Description no guesses one low guess guess_list answer [ 5.5 [4.7] 6.0 {'low': [4.7]}

Create a new dictionary called prices_stocks using {} format like the example below.

prices_stocks={}

Put these values in your prices_stocks dictionary:

"banana": [4,5]
"apple": [2,2]
"orange": [1.5,2.5]
"pear": [3,4]

So the key of dictionary is name of item and value is a list (first element of that list is stock and second element is relevant price)

Loop through each key in prices_stocks, for each key, print out the key along with its price and stock information. Finally calculate how much you earn if you sold all of your products. Print the answer in the following format:

Part-1:

Item: banana Stock: 4 Price: 5

Item: apple Stock: 2 Price: 2

Item: orange Stock: 1.5 Price: 2.5

Item: pear Stock: 3 Price: 4

If you sold all of your items you earn 39.75

azureraccoon643

33. Base10 is the set of numbers created from the digits {0,1,2,3,4,5,6,7,8,9}. Whereas base2, which is the set of numbers created with {0,1}. We could similarly define base; as the ordered set of characters created from {X,Y,Z}. What is the following basez number, Yxz, in base ? Random graph For this section you will need to look at the classes Graph and GraphNode present in the appendix. A Graph consists of a number of nodes, each of which has connections to other nodes in the graph. You can think of nodes as a representation of a person in a social network (e.g. Facebook). The ArrayList connectedTo variable in GraphNodes is the list of friends that particular person has. For example, in the following graph, the node O is friends with node 1 and 2. On the other hand, node 2 and node 1 are not friends, hence the lack of link. 0-0 In the constructor of the Graph, the process of connecting nodes is randomized. Moreover, we will not allow a node to be connected to itself and we are going to assume that the arguments passed to the Graph constructor respect the following conditions: n > 2, and n > nbConnections. Pay close attention to the character order

CSCA20H3 Lecture Notes - Dic Entertainment, Canada Goose, Standard Streams

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