Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  graph[i+1] = x
group = [0]*(n+1)
row = [[] for i in range(n)]
cnt = 0
for i in range(1,n+1):
  if group[i] == 0:
    cnt += 1
    x = i
    while True:
      row[cnt].append(x)
      group[x] = cnt
      if x == n:
        break
      x = graph[x]
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  graph[i+1] = x
group = [0]*(n+1)
row = [[] for i in range(n)]
cnt = 0
for i in range(1,n+1):
  if group[i] == 0:
    cnt += 1
    x = i
    while True:
      row[cnt].append(x)
      group[x] = cnt
      if x == n:
        break
      x = graph[x]
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
import bisect
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  if x == i:
    continue
  graph[i+1] = x
group = [0]*(n+1)
row = [[]]
cnt = 0
stack = []
for i in range(1,n+1):
  if group[i] == 0:
    stack.append(i)
    cnt += 1
    row.append([])
    while stack:
      x = stack.pop()
      row[cnt].append(x)
      group[x] = cnt
      if x != n:
        stack.append(graph[x])
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import bisect
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  if x == i:
    continue
  graph[i+1] = x
group = [0]*(n+1)
row = [[]]
cnt = 0
stack = []
for i in range(1,n+1):
  if group[i] == 0:
    stack.append(i)
    cnt += 1
    row.append([])
    while stack:
      x = stack.pop()
      row[cnt].append(x)
      group[x] = cnt
      if x != n:
        stack.append(graph[x])
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline
import bisect
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  if x == i:
    continue
  graph[i+1] = x
group = [0]*(n+1)
row = [[] for i in range(n+1)]
cnt = 0
stack = []
for i in range(1,n+1):
  if group[i] == 0:
    stack.append(i)
    cnt += 1
    while stack:
      x = stack.pop()
      row[cnt].append(x)
      group[x] = cnt
      if x != n:
        stack.append(graph[x])
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline
import bisect
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [0 for i in range(n+1)]
for i in range(n-1):
  x = bisect.bisect_right(a,a[i]+d)
  if x == i:
    continue
  graph[i+1] = x
group = [0]*(n+1)
row = [[] for i in range(n+1)]
cnt = 0
stack = []
for i in range(1,n+1):
  if group[i] == 0:
    stack.append(i)
    cnt += 1
    while stack:
      x = stack.pop()
      row[cnt].append(x)
      group[x] = cnt
      if x != n:
        stack.append(graph[x])
q = int(input())
for _ in range(q):
  l,r = map(int,input().split())
  if l>r:
    l,r = r,l
  x = group[l]
  yl = bisect.bisect_left(row[x],l)
  yr = bisect.bisect_left(row[x],r)
  print(yr-yl)

Fixed submission:
import bisect
import sys
input = sys.stdin.readline
n = int(input())
a = list(map(int,input().split()))
d = int(input())
graph = [[0 for i in range(n+1)] for j in range(18)]
for i in range(n):
  x = bisect.bisect_right(a,a[i]+d)
  graph[0][i+1] = x
for j in range(1,18):
  for i in range(n):
    t = graph[j-1][i+1]
    graph[j][i+1] = graph[j-1][t]
q = int(input())
for _ in range(q):
  x,y = map(int,input().split())
  x,y = min(x,y),max(x,y)
  ans = 0
  for j in range(18)[::-1]:
    if graph[j][x] < y:
      ans += 2**j
      x = graph[j][x]
    if j == 0 and x < y:
      ans += 1
  print(ans)