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Python: Count the number of sublists contain a particular element

Python List: Exercise - 93 with Solution

Write a Python program to count the number of sublists contain a particular element.

Sample Solution:

Python Code:

def count_element_in_list(input_list, x): 
    ctr = 0
    for i in range(len(input_list)): 
        if x in input_list[i]: 
            ctr+= 1
          
    return ctr
      

list1 = [[1, 3], [5, 7], [1, 11], [1, 15, 7]] 
print("Original list:")
print(list1)
print("\nCount 1 in the said list:")
print(count_element_in_list(list1, 1)) 
print("\nCount 7 in the said list:")
print(count_element_in_list(list1, 7)) 


list1 = [['A', 'B'], ['A', 'C'], ['A', 'D', 'E'], ['B', 'C', 'D']] 
print("\nOriginal list:")
print(list1)
print("\nCount 'A' in the said list:")
print(count_element_in_list(list1, 'A')) 
print("\nCount 'E' in the said list:")
print(count_element_in_list(list1, 'E'))

Sample Output:

Original list:
[[1, 3], [5, 7], [1, 11], [1, 15, 7]]

Count 1 in the said list:
3

Count 7 in the said list:
2

Original list:
[['A', 'B'], ['A', 'C'], ['A', 'D', 'E'], ['B', 'C', 'D']]

Count 'A' in the said list:
3

Count 'E' in the said list:
1

Pictorial Presentation:

Python List: Count the number of sublists contain a particular element.

Flowchart:

Flowchart: Count the number of sublists contain a particular element.

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Previous: Write a Python program to check if a nested list is a subset of another nested list.
Next: Write a Python program to count number of unique sublists within a given list.

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Python: Tips of the Day

Big Number Readability:

you can separate zeros with underscore (_)

print(2_000_000)
print(2_000_000 +1)

Output:

2000000
2000001