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

#define mp make_pair
#define pb push_back
// #define st first
#define nd second
#define fi first
#define se second
#define vt vector
#define FOR(a, b, c)  for(int a=b; a<c; ++a)
#define all(a)     (a).begin(),(a).end()
#define sz(a)      (int)(a).size()

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef vector<int> vi; 
typedef vector<ll> vll;
typedef pii PII;
typedef pll PLL;

constexpr ll nax = 2e5+6969, INF = 1e9+2137;
constexpr ld eps = 1e-9;

mt19937_64 rng(6969);
// mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

inline ll rand(ll l, ll r) {
	return uniform_int_distribution<ll>(l, r)(rng);
}




int32_t main() {
    // ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n; 
    scanf("%d", &n); 
    map<int, int> m; 
    for(int i = 0; i < n; i++) {
        int x; 
        scanf("%d", &x); 
        m[x] += 1; 
    }
    vi v; 
    for(auto e: m) {
        v.pb(e.se); 
    }
    sort(all(v)); 
    
    int cur = 0; 
    int left = n; 
    for(int i = 1; i <= v.size(); i++) {
        cur += v[v.size() - i] - 1; 
        left -= v[v.size() - i]; 

        if(cur >= left) {
            printf("%d\n", i); 
            return 0; 
        }
    }

    return 0;
}