Dsa
Math
Medium
Polygon Diagonal Count
You are tasked with calculating the number of diagonals in a polygon with n sides. The formula for calculating the number of diagonals in a polygon is D = n(n - 3) / 2. Your program should compute this for given values of n.
Input Format:
- A single integer n (3 ≤ n ≤ 100).
Output Format:
- Print the number of diagonals in the polygon.
Example:
Input:
5
Output:
5
(A polygon with 5 sides has 5 diagonals.)
Key concepts
mathgeometrycombinatorics
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