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Python - Consecutive Ranges of K greater than N
When it is required to get the consecutive ranges of ‘K’ which are greater than ‘N’, the ‘enumerate’ attribute and simple iteration is used.
Example
Below is a demonstration of the same
my_list = [3, 65, 33, 23, 65, 65, 65, 65, 65, 65, 65, 3, 65]
print("The list is :")
print(my_list)
K = 65
N = 3
print("The value of K is ")
print(K)
print("The value of N is ")
print(N)
my_result = []
beg, end = 0, 0
previous = 1
for index, element in enumerate(my_list):
if element == K:
end = index
if previous != K:
beg = index
else:
if previous == K and end - beg + 1 >= N:
my_result.append((beg, end))
previous = element
print("The result is :")
print(my_result)Output
The list is : [3, 65, 33, 23, 65, 65, 65, 65, 65, 65, 65, 3, 65] The value of K is 65 The value of N is 3 The result is : [(4, 10)]
Explanation
A list is defined and is displayed on the console.
The values for ‘K’ and ‘N’ are defined and are displayed on the console.
An empty list is defined.
The value for ‘previous’ is defined.
The values for ‘beginning’ and ‘end’ are defined.
The list is iterated over by enumerating it.
If any element in the list is equivalent to another value ‘k’, the index value is redefined.
Otherwise, the values of ‘previous’ is redefined.
The beginning and end values are appended to the empty list.
This is returned as output.
The output is displayed on the console.
Updated on: 21-Sep-2021
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