secondbiggest

#include <iostream>
#include <array>
#include <climits>

const int maxSize = 100;

std::array<int, maxSize> readInput(int& arrSize) {
	std::array<int, maxSize> arr{};
	std::cin >> arrSize;

	for (int i = 0; i < arrSize; ++i) {
		std::cin >> arr[i];
	}
	return arr;
}

void FindSecondBiggest(std::array<int, maxSize>& numbers, int& arrSize) {
	int max = INT_MIN;
	int secondBiggest = 0;

	for (int i = 0; i < arrSize; ++i) {
		for (int j = i+1; j < arrSize; ++j) {
			if (numbers[j] > numbers[i]) {
				max = numbers[j];
			}
		}
	}

	for (int i = 0; i < arrSize; ++i) {
		for (int j = i + 1; j < arrSize; ++j) {
			if (numbers[j] > numbers[i] && numbers[j] < max) {
				secondBiggest = numbers[j];
			}
		}
	}
	std::cout << secondBiggest;
}

int main() {
	int arrSize = 0;
	std::array<int, maxSize> numbers = readInput(arrSize);
	FindSecondBiggest(numbers, arrSize);
}