Problem 3: Manually Calculate Gini Impurity

Problem Description

Write a Python program that manually calculates the Gini Impurity for a node given the count of samples in each class (without using any built-in function).

Input

A list of class counts (e.g., [6, 4] meaning 6 of Class A, 4 of Class B).

Output

The calculated Gini Impurity.

Constraints

• At least 2 classes.

Example Input

text
[6, 4]

Example Output

text
Gini Impurity: 0.48

Concepts Covered

Manual Gini formula, proportions, arithmetic.