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#include <bits/stdc++.h>
using namespace std;

#define REP(i, n) for (int i = 0; i < (int)n; i++)
#define ST first
#define ND second
#define MP make_pair
#define PB push_back

typedef vector<int> VI;
typedef pair<int, int> PII;
typedef vector<PII> VPII;
typedef set<int> SI;
typedef long long LL;

#ifdef DEBUG
const bool debug = true;
#else
const bool debug = false;
#endif

// #define MULTI_TASK true

const int INF = 1000 * 1000 * 1000;
const LL INFLL = 1e18;
const int MAKSN = 1000 * 1000 + 13;
const LL MOD = 123456789LL;
LL N, M, k, l, a, b, c, d;

VI v;
map<int, int> counter;

void zeruj() {
    v.clear();
}

void readIn() {
    cin >> N;
    REP(i, N) {
        cin >> k;
        counter[k] += 1;
    }

    for (auto x: counter) {
        v.PB(x.ND);
    }

    sort(v.begin(), v.end());
    reverse(v.begin(), v.end());
}

void solve() {
    int ans = 0;
    int i = 0;
    while (i < v.size()) {
        ans++;
        v[i]--;
        while (v[i] > 0) {
            if (i == v.size() - 1) {
                break;
            }
            int vb = v.back();

            if (v[i] >= v.back()) {
                v[i] -= v.back();
                v.pop_back();
            }
            else {
                v.back() -= v[i];
                v[i] = 0;
            }
        }
        i++;
    }

    cout << ans << "\n";
}

int main() {
    ios_base::sync_with_stdio(0);
#ifdef MULTI_TASK
    int test;
    cin >> test;
    while (test--) {
#endif
        zeruj();
        readIn();
        solve();
#ifdef MULTI_TASK
    }
#endif
    return 0;
}