3658. GCD of Odd and Even Sums

You are given an integer n. Your task is to compute the GCD (greatest common divisor) of two values:

• sumOdd: the sum of the first n odd numbers.
• sumEven: the sum of the first n even numbers.

Return the GCD of sumOdd and sumEven.

class Solution {
public:
    long long gcdOfOddEvenSums(long long n) {
        return n;
    }
};