Given a tuple, the task is to divide it into smaller groups of n. Let’s discuss a few methods to accomplish a given task.
Method #1: Using enumerate and range function
Python3
# Python code to demonstrate# how to split tuple# into the group of k-tuples# initialising tupleini_tuple = (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)# printing initial tupleprint ("initial list", str(ini_tuple))# code to group# tuple into size 4 tuplesres = tuple(ini_tuple[x:x + 4] for x in range(0, len(ini_tuple), 4))# printing resultprint ("resultant tuples", str(res)) |
Output:
initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))
Method #2: Using enumerate and mod operator
Python3
# Python code to demonstrate# how to split tuple# into the group of k-tuples# initialising tupleini_tuple = (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)# printing initial tupleprint ("initial list", str(ini_tuple))# code to group# tuple into size 4 tuplesres = tuple(ini_tuple[n:n + 4] for n, i in enumerate(ini_tuple) if n % 4 == 0)# printing resultprint ("resultant tuples", str(res)) |
Output:
initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))
Method #3: Using itertools recipes
Python3
# Python code to demonstrate# how to split tuple# into the group of k-tuples# function to group tuple into groups of 4def grouper(n, iterable): args = [iter(iterable)] * n return zip(*args) # initialising tupleini_tuple = (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)# printing initial tupleprint ("initial list", str(ini_tuple))# code to group# tuple into size 4 tuplesres = tuple(grouper(4, ini_tuple))# printing resultprint ("resultant tuples", str(res)) |
Output:
initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))
Method #4: Using zip
Here is another approach using the zip function:
Python3
# initializing tupleini_tuple = (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10)# printing initial tupleprint("initial list", str(ini_tuple))# code to group tuple into groups of 4res = tuple(zip(*[iter(ini_tuple)]*4))# printing resultprint("resultant tuples", str(res)) |
initial list (1, 2, 3, 4, 8, 12, 3, 34, 67, 45, 1, 1, 43, 65, 9, 10) resultant tuples ((1, 2, 3, 4), (8, 12, 3, 34), (67, 45, 1, 1), (43, 65, 9, 10))
Time complexity: O(n)
Auxiliary Space: O(n)
