#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define db double
#define ldb long double
#define pb push_back
#define fi first
#define se second
#define pii pair<int,int>
#define lowbit(i) i&(-i)
const int N = 6e5+6;
int n,a,b,h[N],r[N],x[N];
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0),cout.tie(0);
	cin >> n >> a >> b;
	for(int i=1;i<=n;i++) cin >> h[i],h[i]--;
	for(int i=1;i<=n;i++) r[i] = h[i]%b,r[i] /= a;
	for(int i=1;i<=n;i++) x[i] = (h[i]-r[i]*a)/b-(r[i]+1);
	priority_queue<int> q;
	int sum = 1;
	for(int i=1;i<=n;i++){
		q.push((h[i]/b)+1-x[i]),sum += x[i];
		if(sum<0) sum += q.top(),q.pop();
	}
	int ans = q.size();
	cout << ans;
	return 0;
}