import pypyjit pypyjit.set_param('max_unroll_recursion=-1') from collections import * from itertools import * from functools import * from heapq import * import sys,math input = sys.stdin.readline N,A,B = map(int,input().split()) X = list(map(int,input().split())) Q = 2*N # 頂点数N,追加エッジの個数Q # 頂点iのインデックスはn+iになる(エッジを追加するときは気にする必要はない) n = 1 while n < N: n *= 2 N3 = 3*n + 1 e = [[] for _ in range(N3+2*Q)] for i in range(n-1,0,-1): a = 2*i b = 2*i+1 e[i].append((a,0)) e[i].append((b,0)) if n<=a<2*n: e[a].append((i+2*n,0)) else: e[a+2*n].append((i+2*n,0)) if n<=b<2*n: e[b].append((i+2*n,0)) else: e[b+2*n].append((i+2*n,0)) q = 0 def add(l1,r1,l2,r2,c): ##[l1,r1)から[l2,r2)にコストcの辺を張る global q,e source = [] l1 += n r1 += n while l1>= 1 r1 >>= 1 target = [] l2 += n r2 += n while l2>= 1 r2 >>= 1 for s in source: e[s].append((N3+q,0)) for t in target: e[N3+q+1].append((t,0)) e[N3+q].append((N3+q+1,c)) q += 2 return for i in range(N): xi = X[i] l = N ng = i while l-ng>1: mid = (l+ng)//2 if X[mid]>=A+xi: l = mid else: ng = mid r = i ng = N while ng-r>1: mid = (ng+r)//2 if X[mid]<=xi+B: r = mid else: ng = mid r += 1 add(i,i+1,l,r,1) add(l,r,i,i+1,1) visited = [False]*(N3+2*Q) ans = [1]*(N3+2*Q) for i in range(N): if visited[i+n]: continue visited[i+n]=True v = deque() v.append(i+n) target = deque() target.append(i+n) cnt = 1 while v: x = v.popleft() for ix,_ in e[x]: if visited[ix]: continue visited[ix] = True if n<=ix