#include <bits/stdc++.h>
using namespace std;
int read(){
	int x=0,f=1;char ch = getchar();
	while(ch<'0'||ch>'9'){if(ch=='-'){f=-1;}ch = getchar();}
	while(ch>='0'&&ch<='9'){x = x*10+ch-'0';ch = getchar();}
	return x*f;
}
const int N = 5e5+5;
int a;
int n,x,y,ans;
priority_queue<int>q;
int main(){
	n = read();x = read();y = read();
	int res = 1;
	for(int i=1;i<=n;i++){
		a = read();
		int A = (a-1)/y;
		int B = a-A*y;
		int C = B/x+(B%x!=0);
		res+=A;
		if(res>=C){
			res-=C;
			ans++;
			q.push(C);
		}else{
			if(!q.empty()&&q.top()>C){
				res+=q.top()-C;
				q.pop();
				q.push(C);
			}
			res++; 
		}
	}
	cout<<ans<<"\n";
	return 0;
}