For this Question: Ram has an array a<sub>1</sub>,&nbsp;a<sub>2</sub>,....,&nbsp;a<sub>n</sub>. Ram asks Shyam to choose two integers a<sub>i</sub> and a<sub>j</sub> (i != j) such that the value of bitwise AND of those integers is maximum. Help Shyam to find the maximum value.The first line contains only n, the length of the array.
Second line contains the array elements a<sub>1</sub>, a<sub>2</sub>,. , a<sub>n</sub>separated by space.

<b>Constraints</b>
1 &le; n &le; 3x10<sup>5</sup>
1 &le; a<sub>i</sub> &le; 10<sup>9</sup>The only line of output contains an integer, maximum value value that Shyam can get.Sample Input
4
3 4 2 3
Sample Output
3
Explanation
Shyam can choose a<sub>1</sub> = 3 and a<sub>4</sub> = 3 with bitwise AND 3 which is maximum., 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(int l = LLONG_MIN, int r = LLONG_MAX) {
    uniform_int_distribution<int64_t> generator(l, r);
    return generator(rng);
}

int32_t main() {
    auto start = std::chrono::high_resolution_clock::now();
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    // int tt;
    // cin >> tt;
    // while (tt--) {
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<priority_queue<int>> pq(32);

    for (int i = 0; i < 32; i++) {
        for (int j = 0; j < n; j++) {
            if (a[j] & (1 << i)) {
                pq[i].push(a[j]);
            }
        }
    }

    int ans = 0;

    for (int i = 0; i < 32; i++) {
        if (pq[i].size() > 1) {
            int x = pq[i].top();
            pq[i].pop();
            int y = pq[i].top();
            int temp = x & y;
            ans = max(ans, temp);
        }
    }
    cout << ans << "\n";
    // }

    auto stop = std::chrono::high_resolution_clock::now();
    auto duration = std::chrono::duration_cast<std::chrono::nanoseconds>(stop - start);
    cerr << "Time taken : " << ((long double)duration.count()) / ((long double)1e9) << "s\n";
    return 0;
}, In this Programming Language: C++, Now tell me if this Code is compilable or not?