Python program to construct Equidigit tuples

Equi-digit tuples are tuples where a number is split into two halves at the middle position. Python provides an efficient way to construct these using the floor division operator // and string slicing.

Understanding Equi-digit Tuples

An equi-digit tuple divides a number into two parts of equal or nearly equal length. For even-digit numbers, both parts have equal digits. For odd-digit numbers, the first part has one fewer digit than the second part.

Example

Below is a demonstration of constructing equi-digit tuples ?

my_list = [5613, 1223, 966143, 890, 65, 10221]

print("The list is :")
print(my_list)

my_result = []
for sub in my_list:
    mid_index = len(str(sub)) // 2
    element_1 = str(sub)[:mid_index]
    element_2 = str(sub)[mid_index:]
    
    my_result.append((int(element_1), int(element_2)))

print("The resultant list is :")
print(my_result)

The output of the above code is ?

The list is :
[5613, 1223, 966143, 890, 65, 10221]
The resultant list is :
[(56, 13), (12, 23), (966, 143), (8, 90), (6, 5), (10, 221)]

How It Works

The algorithm follows these steps:

• Convert each number to a string to access individual digits
• Calculate the middle index using floor division //
• Split the string at the middle index using slicing
• Convert both parts back to integers and create a tuple

Alternative Implementation Using List Comprehension

Here's a more concise version using list comprehension ?

numbers = [5613, 1223, 966143, 890, 65, 10221]

result = [(int(str(num)[:len(str(num))//2]), 
           int(str(num)[len(str(num))//2:])) 
          for num in numbers]

print("Original numbers:", numbers)
print("Equi-digit tuples:", result)

Original numbers: [5613, 1223, 966143, 890, 65, 10221]
Equi-digit tuples: [(56, 13), (12, 23), (966, 143), (8, 90), (6, 5), (10, 221)]

Conclusion

Equi-digit tuples split numbers into two parts using floor division and string slicing. This technique is useful for number manipulation and pattern analysis in Python programming.