Dsa
Math
Medium
Sum of Squares of Even Numbers
Given a positive integer n, calculate the sum of squares of all even numbers from 1 to n (inclusive). Print the result.
### Input Format:
A single integer n (1 <= n <= 10^6).
### Output Format:
A single integer representing the sum of squares of even numbers from 1 to n.
### Example:
Input:
5
Output:
20
### Explanation:
The even numbers between 1 and 5 are 2 and 4. Their squares are 4 and 16, which sum to 20.
Key concepts
mathsquaresiteration
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