Odd Sum!
Statement
Goal
Find the sum of the first N positive odd integers.Example: If N=4, you should answer
Input
A positive integer N.
Output
The sum of the first N positive odd integers.
Constraints
1 ≤ N ≤ 10^7
Example
Input
4
Output
16
Game modes
Fastest, Shortest
Test cases
Small Test
Input
4
Output
16
Validator 1 Validator
Input
5
Output
25
Medium Test
Input
18
Output
324
Validator 2 Validator
Input
19
Output
361
Large Test
Input
321
Output
103041
Validator 3 Validator
Input
123
Output
15129
Very Large Test
Input
9927813
Output
98561470962969
Validator 4 Validator
Input
9977511
Output
99550725755121
Solution language
Solution
Stub generator input