For this Question: Alice and Bob are playing a game where Bob gives Alice an array <b>A</b> of size N. There are some positions in the array where the index (According to 1-based indexing) and the element at that index both are prime numbers. Alice has to find those elements and give that to Bob in order of their appearance in the array. Your task is to help Alice complete his task and print the elements.The first line of the input contains an integer N representing the number of elements in the array that Bob gave.
The second line of the input contains n space-separated elements of the array <b>A</b>.

<b>Constraints</b>
1 &le; N &le; 10<sup>4</sup>
1 &le; A[i] &le; 10<sup>4</sup>Print the required elements separated by space in a single line.<b>Sample Input</b>
10 
2 3 5 7 11 13 17 19 23 29
<b>Sample Output</b>
3 5 11 17
<b>Explanation</b>
The array indexing is [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] so the prime number according to the array indexing are 2, 3, 5, 7, and elements belonging to respective indexes are 3, 5, 11, 17. Hence the elements which are prime and are also at prime indexes are 3, 5, 11, and 17., I have written this Solution Code: #include <bits/stdc++.h>

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template <class T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

template <class key, class value, class cmp = std::less<key>>
using ordered_map = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;
// find_by_order(k)  returns iterator to kth element starting from 0;
// order_of_key(k) returns count of elements strictly smaller than k;

#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 2351
#endif

#define int long long

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

inline int64_t random_long(long long l = LLONG_MIN, long long r = LLONG_MAX) {
    uniform_int_distribution<int64_t> generator(l, r);
    return generator(rng);
}

// operator overload of << for vector
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
    for (const auto &x : v)
        os << x << " ";
    return os;
}

bool prime[10001];

void SieveOfEratosthenes(int n) {
    memset(prime, true, sizeof(prime));
    for (int p = 2; p * p <= n; p++) {
        if (prime[p] == true) {
            for (int i = p * p; i <= n; i += p)
                prime[i] = false;
        }
    }
}

void BobsPrimeArray(int n, vector<int> &arr) {
    SieveOfEratosthenes(10000);
    bool ansFound = false;
    for (int i = 1; i < n; ++i) {
        if (arr[i] != 1 && arr[i]!=0 && prime[i + 1] && prime[arr[i]]) {
            cout << arr[i] << " ";
            ansFound = true;
        }
    }
    if (!ansFound) {
        cout << "-1\n";
    }
}

int32_t main() {
    

    int n;
    cin >> n;
    vector<int> arr(n);
    for (int i = 0; i < n; ++i) {
        cin >> arr[i];
    }
    BobsPrimeArray(n, arr);

   
    return 0;
}, In this Programming Language: C++, Now tell me if this Code is compilable or not?