Second Largest Value

Return the second largest distinct value in the list. Repeated values count once.

Implement second_largest(numbers).

Input

numbers: A list of non-negative integers.

Output

Return the second largest distinct value, or -1 if it doesn't exist.

Contraintes

0 ≤ length ≤ 100,000; 0 ≤ each value ≤ 10⁹

Exemples

Entrée :
numbers = [4, 9, 7, 9]

Sortie attendue :
expected = 7

Entrée :
std::vector<long long> numbers = {4, 9, 7, 9};

Sortie attendue :
long long expected = 7;

Entrée :
long[] numbers = new long[] {4, 9, 7, 9};

Sortie attendue :
long expected = 7;

Entrée :
numbers = [5, 5]

Sortie attendue :
expected = -1

Entrée :
std::vector<long long> numbers = {5, 5};

Sortie attendue :
long long expected = -1;

Entrée :
long[] numbers = new long[] {5, 5};

Sortie attendue :
long expected = -1;

Références

Ce défi a été adapté pour CodeUtility. Suivez l'énoncé et les contraintes ci-dessus.

• GWU CS1111 Introduction to Software Development - lab sequence