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Oksi-84 [34.3K]
3 years ago
12

Proxy data:

Computers and Technology
1 answer:
lapo4ka [179]3 years ago
6 0

Answer: provide climate data representing times when instruments were not available to measure them.

Explanation:

Proxy data provides climate data representing times when instruments were not available to measure them.

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Chất xơ có nhiều trong thực phẩm nào?
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Your team at amazon is overseeing the design of a new high-efficiency data center at HQ2. A power grid need to be generated for
Alla [95]

Following are the python program to the given question:

from collections import defaultdict #import package

import heapq as h#import package

def primsMST(gr, st_v): # defining a method primsMST that takes two values in parameters  

   primalMST = defaultdict(set)#defining primalMST as a variable that calls defaultdict method  

   v = set([st_v])# defining a variable v that calls the set method and hold its value

   e_list = [(c, st_v, to)for to, c in gr[st_v].items()]#defining variable e_list that use loop to hold value in list

   h.heapify(e_list)# use package that holds heapify and holds its value

   while e_list:#defining while loop that checks e_list  

       c, s, e = h.heappop(e_list)#holding heapop method value in c,s,and e variable

       if e not in v:#defining if block checks e value is not in v

           v.add(e)# use add method to add value in v

           primalMST[s].add(e)#use primalMST as list that adds value in mwthod

   for nxt, c in gr[e].items():#defining for loop that uses nxt, and c variable that checks value in list

       if nxt not in v:#defining nxt variable that checks value is not in v

           h.heappush(e_list, (c, e, nxt))#add value into the heappush method

   return primalMST#return method value

connects=[['A','B',1],['B','C',4],['B','D',6],['D','E',5],['C','E',1]]#defining a list connects

my_gr=dict()#defining a variable my_gr that holds method dict() value  

for el in connects:#defining a for loop that uses el to count connects list value

   my_gr[el[0]]=dict()#use my_gr as list hold value in dict method

   my_gr[el[1]]=dict()#use my_gr as list hold value in dict method

for el in connects:#defining another for loop that uses el to count connects list

   my_gr[el[0]].update({el[1]:el[2]}) # use update method that update value in my_gr

   my_gr[el[1]].update({el[0]:el[2]})# use update method that update value in my_gr

x=dict(primsMST(my_gr, list(my_gr.keys())[0]))#defining x variable that calls dict method and  hold its value  

a=[]#defining an empty list

for k in x:#defining a for loop that uses k to hold dict method value

   for no in x[k]:#defining a loop that checks list value

       a.append([k,no,my_gr[k][no]])#use a that add value in list  

       print(a)#print list value.

Output:

Please find the attached file.

Program Explanation:

  • Import package.
  • defining a method primsMST that takes "gr and st_v" as parameters.
  • Inside the method, a primalMST as a variable is declared that calls "defaultdict" method.
  • Use the v variable that calls the set method and hold its value.
  • Defining "e_list" that uses the loop to hold value in lists, and define the heapify and holds its value.
  • In the next step, it defines a while loop checks e_list, and defines variable and hold value into the method and use another if to check value and return its value.
  • A list "connects" is declared that holds a value and defines a "my_gr" that holds "dict" method value and uses multiple for loop to print the calculated list value.

Learn more:

dictionary: brainly.in/question/14673591

List: brainly.in/question/25140412

7 0
3 years ago
I really need help with this question! Please help!
Pachacha [2.7K]

Explanation:

the third answer is correct

4 0
2 years ago
Read 2 more answers
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