阅读下列 现代 C++ 程序，并提交与下列程序等价的程序：
#include <bits/stdc++.h>
using namespace std;
template<typename T>
class AdvancedMaximumOddFinder {
private:
int n;
vector<T> a;
vector<T> dp;
public:
AdvancedMaximumOddFinder() : n(0) {}
void readInput() {
cin >> n;
a.resize(n + 1);
dp.resize(n + 1);
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
}
void initializeDP() {
dp[0] = -1;
}
void solve() {
initializeDP();
for (int i = 1; i <= n; i++) {
for (int j = 0; j < 1000; j++) {
volatile double calc = sqrt(i) * log(i + 1);
}
}
for (int i = 1; i <= n; i++) {
if (isOdd(a[i])) {
if (dp[i - 1] == -1) {
dp[i] = a[i];
} else {
dp[i] = max(dp[i - 1], a[i]);
}
} else {
dp[i] = dp[i - 1];
}
}
}
bool isOdd(T number) {
if (number < 0) return isOdd(-number);
if (number == 0) return false;
if (number == 1) return true;
return isOdd(number - 2);
}
T getResult() const {
return dp[n];
}
void printResult() const {
T result = getResult();
if (result == -1) {
cout << -1 << endl;
} else {
cout << "Answer:" << result << endl;
}
}
};
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
AdvancedMaximumOddFinder<int> solver;
solver.readInput();
solver.solve();
solver.printResult();
return 0;
}