Number of Diagonals | Practice

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Handle

Score

5761

5701

5111

4989

4944

4506

3762

@marius_valentin_dragoi

3516

@sushant_a

3459

@verma_ji

3341

@KshamaGupta

3318

Complete Leaderboard

Number of Diagonals

School Accuracy: 42.67% Submissions: 75 Points: 0

Given a number N, the task is to find the number of diagonals in N sided convex polygon.

Example 1:

Input: N = 5
Output: 5

Example 2:

Input: N = 6
Output: 9

Your Task:
You don't need to read input or print anything. Your task is to complete the function diagonals() which takes N as input and returns the number of possible diagonals.

Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)

Constraints:
3 ≤ N ≤ 10⁹

Topic Tags

Geometric

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