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Python | Find frequency of largest element in list

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  • Last Updated : 20 Jul, 2021
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Given a list, the task is to find the number of occurrences of the largest element of the list.
Examples:
 

Input : [1, 2, 8, 5, 8, 7, 8]
Output :3


Input : [2, 9, 1, 3, 4, 5]
Output :1

Method 1: The naive approach is to find the largest element present in the list using max(list) function, then iterating through the list using a for loop and find the frequency of the largest element in the list. Below is the implementation.
 

Python3




# Python program to find the
# frequency of largest element
 
 
L = [1, 2, 8, 5, 8, 7, 8]
 
# print the  frequency of largest element
frequency = print(L.count(max(L)))
 
 
 
        

Output: 
 

3

Method 2: Using collections.Counter() 
Once initialized, counters are accessed just like dictionaries. Also, it does not raise the KeyValue error (if key is not present) instead the value’s count is shown as 0.
 

Python3




# Python program to find the
# frequency of largest element
 
import collections
 
L = [1, 2, 8, 5, 8, 7, 8]
 
# find the largest element
largest = max(L)
 
# Storing the occurrences of each
# element of list in res
res = collections.Counter(L)
 
print(res[largest])

Output: 
 

3

Method 3: Using the dictionary 
In this approach, the number of occurrences of each element is stored in a dictionary as a key-value pair, where key is the element and value is the frequency.
 

Python3




# Python program to find the
# frequency of largest element
 
 
L = [1, 2, 8, 5, 8, 7, 8]
d= {}
 
# find the largest element
largest = max(L)
 
for i in L:
    if i in d:
        d[i] += 1
    else:
        d[i] = 1
         
print(d[largest])

Output: 
 

3

 


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