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#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
auto&operator<<(auto &o, pair<auto, auto> p) {o << "(" << p.first << ", " << p.second << ")"; return o;}
auto operator<<(auto &o, auto x)->decltype(x.end(), o) {o<<"{"; for(auto e : x) o<<e<<", "; return o<<"}";}
#define debug(X) cerr << "["#X"]: " << X << '\n';
#else 
#define cerr if(0)cout
#define debug(X) ;
#endif
using ll = long long;
#define all(v) (v).begin(), (v).end()
#define ssize(x) int(x.size())
#define fi first
#define se second
#define mp make_pair
#define eb emplace_back


int main() {
	ios_base::sync_with_stdio(false); cin.tie(nullptr);

	int n;
	cin >> n;
	vector<int> a(n);
	vector<int> wyst(n+1);
	for(int &x : a) {cin >> x; ++wyst[x];}

	vector<int> b;
	for(int i = 1; i <= n; ++i) if(wyst[i] > 0) b.eb(wyst[i]);
	sort(all(b));

	debug(b);
	int r = ssize(b)-1;
	int res = 0, s = 0;
	while (r >= 0 && n-s > s-res) {
		res++;
		s += b[r--];
	}

	cout << res << '\n';

	return 0;
}