Python: Count the occurrence of each element of a given list

Last update on December 21 2024 07:25:22 (UTC/GMT +8 hours)

Write a Python program to count the occurrences of each element in a given list.

Sample Solution:

Python Code:

# Import the Counter class from the collections module
from collections import Counter

# Create a list 'colors' with strings representing colors
colors = ['Green', 'Red', 'Blue', 'Red', 'Orange', 'Black', 'Black', 'White', 'Orange']

# Print a message to indicate the display of the original list
print("Original List:")

# Print the content of the 'colors' list
print(colors)

# Print a message to indicate the display of the count of occurrences of each element in the list
print("Count the occurrence of each element of the said list:")

# Use Counter to count the occurrences of elements in 'colors' and store the result in 'result'
result = Counter(colors)

# Print the result
print(result)

# Create a list 'nums' with integer values
nums = [3, 5, 0, 3, 9, 5, 8, 0, 3, 8, 5, 8, 3, 5, 8, 1, 0, 2]

# Print a message to indicate the display of the original list
print("\nOriginal List:")

# Print the content of the 'nums' list
print(nums)

# Print a message to indicate the display of the count of occurrences of each element in the list
print("Count the occurrence of each element of the said list:")

# Use Counter to count the occurrences of elements in 'nums' and store the result in 'result'
result = Counter(nums)

# Print the result
print(result) 

Sample Output:

Original List:

['Green', 'Red', 'Blue', 'Red', 'Orange', 'Black', 'Black', 'White', 'Orange']
Count the occurrence of each element of the said list:
Counter({'Red': 2, 'Orange': 2, 'Black': 2, 'Green': 1, 'Blue': 1, 'White': 1})

Original List:

[3, 5, 0, 3, 9, 5, 8, 0, 3, 8, 5, 8, 3, 5, 8, 1, 0, 2]
Count the occurrence of each element of the said list:
Counter({3: 4, 5: 4, 8: 4, 0: 3, 9: 1, 1: 1, 2: 1})

Flowchart:

Python Code Editor:

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