Answered

Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Connect with professionals on our platform to receive accurate answers to your questions quickly and efficiently. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

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]]

Sagot :

Following are the Python program to sort the 2-dimensional array in descending order.

Program Explanation:

  • Defining a list "arr" that holds an integer value.
  • Defining multiple empty lists "m,n, and o".
  • In the next step, a for loop is declared that defines an if block that uses an append method to add value into the list.
  • Inside this, "m" variable that sort by frequency of array, and declared two for loop with the if conditional block.
  • In this, it sorts array and store its value with the "m" and print its value.

Program:

arr=[3,3,1,2,1]#defining a list  

m=[] #defining an empty list m  

n=[] #defining an empty list n  

o=[]#defining an empty list o  

for i in arr: #defining a for loop that iterate arr

 if i not in o: # defining if block that add value in empty list  

   n.append(i)#using append method to add value

   n.append(arr.count(i))#using append method add its index value

   m.append(n) #element and its frequency storeds in 2d matrix

   n=[]#defining an empty list n

   o.append(i)#calling append method to add value

m=sorted(m,key=lambda l:l[1], reverse=True) # defining m variable that sort by frequency of array

# sort by element

for i in range(len(m)):#using loop variable i that takes m matrix length

 for j in range(len(m)):#using loop variable j that takes m matrix length

   if m[i][0]<m[j][0] and m[i][1]==m[j][1]:#using if block that sort array element

     m[i],m[j]=m[j],m[i]#defining matrix that hold matrix value  

print(m) #print matrix value

Output:

Please find the attached file.

Learn more:

brainly.com/question/12286809

View image codiepienagoya
Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.