subject

Please do in python. Given an array of integers, create a 2-dimensional array where the first element is a distinct value from the array and the second element is the value’s frequency within the array. Sort the resulting array descending by frequency. If multiple values have the same frequency, they should be sorted ascending. Example: arr = [3,3,1,2,1]There are two values, 3&1 each within frequency of 2, and one value 2 with a frequency of 1: [[3,2], [1,2], [2,1]] Sort the 2-dimensional descending by frequency: [[3,2], [1,2], [2,1]] Sort the 2-dimensional array descending by values with matching frequencies [[1,2], [3,2], [2,1]]

ansver
Answers: 1

Another question on Computers and Technology

question
Computers and Technology, 23.06.2019 04:00
Write a method that takes in an array of point2d objects, and then analyzes the dataset to find points that are close together. be sure to review the point2d api. in your method, if the distance between any pair of points is less than 10, display the distance and the (x,y)s of each point. for example, "the distance between (3,5) and (8,9) is 6.40312." the complete api for the point2d adt may be viewed at ~pf/sedgewick-wayne/algs4/documentation/point2d.html (links to an external site.)links to an external site.. try to write your program directly from the api - do not review the adt's source code.
Answers: 1
question
Computers and Technology, 24.06.2019 15:00
What questions about an audience should be asked during presentation preparation? check all that apply. what does the audience already know about the topic? how will multimedia tools inspire the audience? is the information interesting and engaging? how will this information affect the presentation? will the audience change the message’s purpose? what is likely to interest the audience?
Answers: 3
question
Computers and Technology, 25.06.2019 04:10
This might be a bit off-topic, but i'm having trouble with a certain arg made by game theory. if there are any theorists out there that wanna , it would be appreciated!
Answers: 2
question
Computers and Technology, 25.06.2019 08:10
Rom also called main memory or system memoryis used to stor the essential parts of the operating while the computer is running / true or false
Answers: 2
You know the right answer?
Please do in python. Given an array of integers, create a 2-dimensional array where the first elemen...
Questions
question
Biology, 25.11.2021 06:50
question
Advanced Placement (AP), 25.11.2021 06:50
Questions on the website: 13722363