Harryxun/sft_time huggingface dataset:
### BUGGY CODE ###

import sys
sys.setrecursionlimit(2**31-1)

N, Q = [int(i) for i in input().split()]
G = [[] for _ in range(N)]
counter = [0] * N
res = [0] * N
visited = [0] * N

for _ in range(N-1):
    a, b = [int(i)-1 for i in input().split()]
    G[a].append(b)
    G[b].append(a)

for _ in range(Q):
    p, x = [int(i) for i in input().split()]
    p -= 1
    counter[p] += x

def dfs(G, v, p):
    visited[v] = 1
    res[v] = res[p]+counter[v]
    for nv in G[v]:
        if visited[nv]: continue
        dfs(G, nv, v)

dfs(G, 0, 0)
print(*res)

### FIXED CODE ###

N, Q = [int(i) for i in input().split()]
G = [[] for _ in range(N)]
counter = [0] * N
res = [0] * N
visited = [0] * N

for _ in range(N-1):
    a, b = [int(i)-1 for i in input().split()]
    G[a].append(b)
    G[b].append(a)

for _ in range(Q):
    p, x = [int(i) for i in input().split()]
    p -= 1
    counter[p] += x

# def dfs(G, v, p):
#     visited[v] = 1
#     res[v] = res[p]+counter[v]
#     for nv in G[v]:
#         if visited[nv]: continue
#         dfs(G, nv, v)

stack = [0]
parent = [0]
while stack:
    v = stack.pop()
    p = parent.pop()
    visited[v] = 1
    res[v] = res[p]+counter[v]
    for nv in G[v]:
        if visited[nv]: continue
        stack.append(nv)
        parent.append(v)

# dfs(G, 0, 0)
print(*res)
### BUGGY CODE ###

sn,sm = input().split(" ")
n = int(sn)
m = int(sm)
sa = input().split(" ")
l = len(sa)
a = []

for i in range(l):
  a.append(int(sa[i]))

for i in range(m):  
  ind = a.index(max(a))
  a[ind] = a[ind] //2
  
print(sum(a))

### FIXED CODE ###

class Heap:

    # 初期化
    def __init__(self):
        self.array = []

    def num(self):
        return len(self.array)
        
    # valを追加する
    def put(self, val):
        pos = len(self.array)
        # valを末尾に追加する
        self.array.append(val)
        # valを適当な位置まで上にあげる
        self.pop_up(pos)
        
    # 最大の要素を取り出す
    def get(self):
        assert len(self.array) > 0

        val = self.array[0]
        
        # 末尾の要素を0に移動してから下に下げる
        t_val = self.array[-1]
        self.array[0] = t_val
        del self.array[-1]
        self.push_down(0)
        return val

    # posの位置の要素を適当な位置まで上げる
    def pop_up(self, pos):
        while pos > 0:
            p_pos = (pos - 1) // 2
            val = self.array[pos]
            p_val = self.array[p_pos]
        
            if val > p_val:
                self.array[pos] = p_val
                self.array[p_pos] = val
                pos = p_pos
            else:
                break
            
    def push_down(self, pos):
        while True:
            l_pos = 2 * pos + 1
            r_pos = 2 * pos + 2
            n = len(self.array)
            
            if n <= l_pos:
                # 子がいない場合
                break
            
            elif n == r_pos:
                # 子が一人の場合
                val = self.array[pos]
                l_val = self.array[l_pos]
                
                if val < l_val:
                    self.array[pos] = l_val
                    self.array[l_pos] = val
                    
                break #
            
            else:
                # 子が二人いるとき
                val = self.array[pos]
                l_val = self.array[l_pos]
                r_val = self.array[r_pos]
                
                if l_val > r_val:
                    if val < l_val:
                        self.array[pos] = l_val
                        self.array[l_pos] = val
                        pos = l_pos
                    else:
                        break
                else:
                    if val < r_val:
                        self.array[pos] = r_val
                        self.array[r_pos] = val
                        pos = r_pos
                    else:
                        break

                        
h = Heap()
sn,sm = input().split(" ")
n = int(sn)
m = int(sm)
sa_list = input().split(" ")


for sa in sa_list:
  a = int(sa)  
  h.put(a)
 
for i in range(m):  
    max_a = h.get()
    h.put(max_a // 2)

    

print(sum(h.array))
### BUGGY CODE ###

import bisect
import numpy as np
INF=10**18
A,B,Q=map(int,input().split())
s=[int(input()) for i in range(A)]
t=[int(input()) for i in range(B)]
x=[int(input()) for i in range(Q)]
s=[-INF]+s+[INF]
t=[-INF]+t+[INF]
s=np.array(s)
t=np.array(t)
x=np.array(x)
for X in x:
    t1=bisect.bisect_right(t,X)
    l1=X-t[t1]
    if (t[t1]-X)>(X-t[t1-1]):
        l1=X-t[t1-1]
    s1=bisect.bisect_right(s,X)
    l2=X-s[s1]
    if (s[s1]-X)>(X-s[s1-1]):
        l2=X-s[s1-1]
    l3=bisect.bisect_right(s,X-l1)
    l4=bisect.bisect_right(t,X-l2)
    print(min(abs(l1)+min(s[l3]-X+l1,X-l1-s[l3-1]),abs(l2)+min(t[l4]-X+l2,X-l2-t[l4-1])))



### FIXED CODE ###

import bisect
INF=10**18
A,B,Q=map(int,input().split())
s=[int(input()) for i in range(A)]
t=[int(input()) for i in range(B)]
s=[-INF]+s+[INF]
t=[-INF]+t+[INF]
for q in range(Q):
    X=int(input())
    t1=bisect.bisect_right(t,X)
    s1=bisect.bisect_right(s,X)
    res=INF
    for T in [t[t1],t[t1-1]]:
        for S in [s[s1],s[s1-1]]:
            ans1=abs(X-T)+abs(S-T)
            ans2=abs(X-S)+abs(S-T)
            res=min(res,ans1,ans2)
    print(res)
### BUGGY CODE ###

#! cat input | python3 main.py

n, k = map(int, input().split())
a = list(map(int, input().split()))
if n == 1:
    if a[0] == k:
        print("POSSIBLE")
    else:
        print("IMPOSSIBLE")
    __import__("sys").exit()
a.sort()
ma = max(a)
def isfact(n):
    if n == 2: return True
    for i in (2, n**0.5 + 1):
        if n % i == 0:
            return False
    return True
def calcfacts():
    r = []
    for i in range(2, 10**5):
        if isfact(i):
            r.append(i)
    return r
allfacts = calcfacts()

def prim_fact(n):
    facts = []
    ti = 0
    t = allfacts[ti]
    nn = n ** 0.5 + 1
    while True:
        if n % t == 0:
            facts.append(t)
            n //= t
        else:
            ti += 1
            t = allfacts[ti]
        if t >= n or t > nn:
            if n != 1:
                facts.append(n)
            break
    return facts


def f(a, k, ma):
    minv = float("inf")
    for i, v in enumerate(a[1:]):
        if v - a[i] != 0:
            minv = min(minv, v - a[i])
    minv = min(minv, a[0])

    sets = []
    setn = set()
    for v in a:
        s = set(prim_fact(v))
        # sets.append(s)
        # for i in s: setn.add(i)
    # for v in setn:
    #     for s in sets:
    #         if v not in s:
    #             break
    #     else:
    #         minv = min(minv, v)
    #         break
    # else:
    #     return False

    if minv == 1:
        return False

    a = a[:]
    for i in range(0, ma + minv, minv):
        if i == k:
            return False
        if i < a[0]:
            continue
        if i == a[0]:
            del a[0]
        else:
            return False
    return True

if ma < k:
    print("IMPOSSIBLE")
elif f(a, k, ma):
    print("IMPOSSIBLE")
else:
    print("POSSIBLE")


### FIXED CODE ###

a, b = map(int, input().split())
array = list(map(int, input().split()))
impossible = "IMPOSSIBLE"
possible = "POSSIBLE"

array = list(set(array))

if len(array) == 1:
    if b == array[0]:
        print(possible)
    else:
        print(impossible)
    exit(0)

array.sort()

btw = [v1 - v2 for v1, v2 in zip(array[1:], array[0:])]
n = sorted(btw)[0]

same = len(set(btw)) == 1 or all([v % n == 0 for v in btw])

if b in array:
    print(possible)
elif array[-1] < b:
    print(impossible)
elif same and (b - array[0]) % n == 0:
    print(possible)
else:
    print(impossible)
### BUGGY CODE ###

import sys
input=sys.stdin.readline
import bisect
from collections import defaultdict
h, w, d = map(int, input().split())
p = dict()
D = defaultdict(list)
for i in range(h):
    for j, x in enumerate(map(int, input().split())):
        p[x] = (x, i, j)
        idx = bisect.bisect_left(D[x%d], (x, i, j))
        D[x%d].insert(idx, (x, i, j))
q = int(input())

for i in range(q):
    a, b = map(int, input().split())
    v = D[a%d]
    l = v.index(p[a])
    r = l + (b-a)//d
    tmp = v[l:r+1]
    _, s, t = tmp[0]
    ans = 0
    for _, u, v in tmp[1:]:
        ans += abs(u-s)+abs(v-t)
        s, t = u, v
    print(ans)


### FIXED CODE ###

import sys
input=sys.stdin.readline
h, w, d = map(int, input().split())
p = dict()

for i in range(h):
    for j, x in enumerate(map(int, input().split())):
        p[x] = (i, j)

dp = [0]*(h*w+1)
for i in range(h*w+1):
    if d < i:
        dp[i] = dp[i-d] + abs(p[i][0]-p[i-d][0])+abs(p[i][1]-p[i-d][1])

q = int(input())
for i in range(q):
    a, b = map(int, input().split())
    ans = dp[b]-dp[a]
    print(ans)
### BUGGY CODE ###

N,Q = map(int,input().split())
S = input()
lr = [list(map(int,input().split())) for _ in range(Q)]
for l,r in lr:
    print(S[l-1:r].count('AC'))

### FIXED CODE ###

import bisect

N,Q = map(int,input().split())
S = input()
L = []
for i in range(N):
    if S[i:i+2] == 'AC':
        L.append(i)
for i in range(Q):
    l,r = map(int,input().split())
    a = bisect.bisect_left(L,l-1)
    b = bisect.bisect_right(L,r-2)
    print(b-a)
### BUGGY CODE ###

n,m,q = map(int,input().split())

lr = [[0 for i in range(n+1)] for j in range(n+1)]
#lr = [[int(i) for i in input().split()]for j in range(m)]

st = [0] * (n+1)
ed = [0] * (n+1)

for i in range(m):
    l,r = map(int,input().split())
    lr[l][r] += 1

pq = [[int(i) for i in input().split()]for j in range(q)]

dp = [[0 for i in range(n+1)] for j in range(n+1)]

#print(lr)

for i in range(1,n+1):
    #print(i)
    for j in range(i,n+1):
        #print(i,j)
        dp[i][j] = dp[i][j-1]+lr[i][j]

for i in range(q):
    st = pq[i][0]
    ed = pq[i][1]
    tmp = 0
    for j in range(ed-st+1):
        tmp += dp[st+j][ed]
    print(tmp)
#print(dp)

### FIXED CODE ###

n,m,q = map(int,input().split())

lr = [[0 for i in range(n+1)] for j in range(n+1)]
#lr = [[int(i) for i in input().split()]for j in range(m)]

st = [0] * (n+1)
ed = [0] * (n+1)

for i in range(m):
    l,r = map(int,input().split())
    lr[l][r] += 1

pq = [[int(i) for i in input().split()]for j in range(q)]

dp = [[0 for i in range(n+1)] for j in range(n+1)]

#print(lr)

for i in range(1,n+1):
    #print(i)
    for j in range(i,n+1):
        #print(i,j)
        dp[i][j] = dp[i][j-1]+lr[i][j]

for i in range(q):
    st = pq[i][0]
    ed = pq[i][1]
    tmp = 0
    for j in range(ed-st+1):
        tmp += dp[st+j][ed]
    print(tmp)
#print(dp)
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))
b = []
for i in range(n):
    if i % 2 == 0:
        b.append(a[i])
    else:
        b.insert(0,a[i])

if n % 2 == 1:
    b = b[::-1]

if len(b) == 1:
    print(b[0])

else:
    for i in range(len(b)-1):
        print(b[i], end=" ")
    print(b[i+1])

### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
b = [0]*n
for i in range(n):
    if i % 2 == 0:
        b[n//2+i//2] = a[i]
    else:
        b[n//2-i//2-1] = a[i]
        
if n % 2 == 1:
    b = b[::-1]

if len(b) == 1:
    print(b[0])

else:
    for i in range(len(b)-1):
        print(b[i], end=" ")
    print(b[i+1])
### BUGGY CODE ###

from collections import deque
N = int(input())
S = str(input())
T = deque(list(S))
#print(T)

#Z = [0 for _ in range(N)]
#Z[0] = N

def momokuroz(s): #z-algorithm
  Max = 0
  n = len(s)
  z = [0 for _ in range(n)]
  z[0] = n
  i = 1; j = 0
  while i < n: #iは基準の位置。
    while i+j < n and s[i+j] == s[j]:
      j += 1 #何文字一致してるかなー？
    z[i] = min(i,j) #jが一致している文字数。
    Max = max(Max,z[i])
    if j == 0:
      i += 1
      continue
    
    k = 1 #途中でjを超えていたらその先は別途見る必要がある。
    #kが一致してる文字数ぴったしだとその先は不明。k<j
    #j文字一致しているところを参照したいが飛び出していたらそこは不明。k+Z[k]<j
    while k<j and k+z[k] <j:
      z[i+k] = z[k]
      k += 1
    
    i += k #基準位置を動かす
    j -= k #このjまでは一致しているのは確定なので上のWhileに戻ってチェック。
  #MAX = max(z[1:])
  #print(Max,s,z)
  return Max

ans = 0    
for i in range(N-1):
  temp = "".join(T)
  a = momokuroz(temp)
  ans = max(ans,a)
  T.popleft()


print(ans)

### FIXED CODE ###

class RollingHash():
    def __init__(self, s, base, mod):
        self.mod = mod
        self.pw = pw = [1]*(len(s)+1)

        l = len(s)
        self.h = h = [0]*(l+1)

        v = 0
        for i in range(l):
            h[i+1] = v = (v * base + ord(s[i])) % mod
        v = 1
        for i in range(l):
            pw[i+1] = v = v * base % mod
    def get(self, l, r): #S[l:r]indexでいうl文字目からr-l文字目。r-l文字。
        return (self.h[r] - self.h[l] * self.pw[r-l]) % self.mod

    def check(self, d):
        ma = {}
        for i in range(N-d+1): #0からN-dまで
            p = self.get(i,i+d)
            if p in ma:
                if i - ma[p] >= d: #d文字以上離れているか
                  return True
            else:
                ma[p] = i
        return False
            
              
N =int(input())
S = str(input())

base1 = 1007
mod1 = 10**9+7

RH = RollingHash(S,base1,mod1)

left = 0
right = N//2+1
while right - left >1:
  mid = (left+right)//2
  if RH.check(mid): #こちらがokの方
    left = mid
  else:
    right = mid

print(left)
### BUGGY CODE ###

N = int(input())
A = list(map(int,input().split()))
mod = 1000000000+7
T = 0
#print(A[1])
for i in range(N-1):
    for j in range(N-i-1):
        T += A[i]*A[j+i+1]
        #print(T)
T = T%mod
print(T)

### FIXED CODE ###

N = int(input())
A = list(map(int,input().split()))

S = sum(A)
S2 = sum(map(lambda x: x*x,A))

print((S*S - S2) // 2 % 1000000007)
### BUGGY CODE ###

def main():
  from collections import deque
  import sys
  input = sys.stdin.readline
  T = int(input())
  for _ in range(T):
    N = int(input())
    KLR = [list(map(int,input().split())) for _ in range(N)]
    left = deque([])
    right = deque([])
    mid = deque([])
    for K,L,R in KLR:
      x = L - R
      if x==0:
        mid.append([K-1,L,R,x])
      elif x>0:
        left.append([K-1,L,R,x])
      else:
        right.append([K-1,L,R,x])

    left = sorted(left,key = lambda x:x[3],reverse = True)
    right = sorted(right, key = lambda x:x[3])
    flag = [False] * (N)
    ans = 0
    for i in range(len(left)):
      klr = left[i]
      x = klr[0]
      while True:
        if x<0:
          ans += klr[2]
          break
        if flag[x]:
          x -= 1
        else:
          flag[x] = True
          ans += klr[1]
          break
    flag = [False] * (N)
    for i in range(len(right)):
      klr = right[i]
      x = klr[0] + 1
      while True:
        if x>=N:
          ans += klr[1]
          break
        if flag[x]:
          x += 1
        else:
          flag[x] = True
          ans += klr[2]
          break
    for i in range(len(mid)):
      ans += mid[i][1]

    print(ans)
    
main()

### FIXED CODE ###

def main():
  from collections import deque
  import sys
  input = sys.stdin.readline
  from heapq import heapify,heappop,heappush
  T = int(input())
  for _ in range(T):
    N = int(input())
    KLR = [list(map(int,input().split())) for _ in range(N)]
    left = deque([])
    right = deque([])
    ans = 0
    for K,L,R in KLR:
      x = L - R
      if x==0:
        ans += L
      elif x>0:
        left.append([K,L,R])
        ans += R
      else:
        right.append([K+1,L,R])
        ans += L

    left = sorted(left)
    right = sorted(right,reverse=True)
      
    S = []
    heapify(S)
    x = 1
    i = 0
    length = len(left)
    while x<=N:
      while i<length:
        klr = left[i]
        if klr[0]==x:
          heappush(S,klr[1]-klr[2])
          i += 1
          
        else:
          break
      
      y = len(S) - x
      if y<=0:
        x += 1
        continue
      else:
        for _ in range(y):
          heappop(S)
          
    ans += sum(S)
    
    S = []
    heapify(S)
    x = N+1
    i = 0
    length = len(right)
    while x>=0:
      while i<length:
        klr = right[i]
        if klr[0]==x:
          heappush(S,klr[2]-klr[1])
          i += 1
 
        else:
          break
      
      y = len(S) + x - N - 1
      if y<=0:
        x -= 1
        continue
      else:
        for _ in range(y):
          heappop(S)    
    ans += sum(S)
    print(ans)
    
main()
### BUGGY CODE ###

x,y,z = map(int, input().split())

cnt = 0
for i in range(x,y+1):
    if(i % z==0):
        cnt = cnt +1
print(cnt)


### FIXED CODE ###

a, b, x = map(int, input().split())
print(b // x - (a - 1) // x)
### BUGGY CODE ###

import queue

class VInfo(object):
    def __init__(self,color,x,y,d,isChange):
        if not isChange:
            self.color=color
            self.d=d
        else:
            if color==".":self.color="#"
            else:self.color="."
            self.d=d+1
        self.x=x
        self.y=y

h,w=map(int,input().split())
a=[[str(i) for i in input()] for j in range(h)]
sx,sy=0,0
gx,gy=w-1,h-1
cw=0


q=queue.Queue()
q.put(VInfo(".",sx,sy,0,False))
isGoal=False
m=100000000000000
while not q.empty():
    now=q.get()
    cnt=now.d
    if now.x==gx and now.y==gy:
        m=min(m,now.d)
    if now.y+1<w and a[now.y+1][now.x]==now.color:q.put(VInfo(now.color,now.x,now.y+1,now.d,False))
    if now.y+1<w and a[now.y+1][now.x]!=now.color:q.put(VInfo(now.color,now.x,now.y+1,now.d,True))

    if now.x+1<h and a[now.y][now.x+1]==now.color:q.put(VInfo(now.color,now.x+1,now.y,now.d,False))
    if now.x+1<h and a[now.y][now.x+1]!=now.color:q.put(VInfo(now.color,now.x+1,now.y,now.d,True))
if a[h-1][w-1]=="#":m+=1
m=m//2
if a[0][0]=="#":m+=1
print(m)

### FIXED CODE ###

import queue

class VInfo(object):
    def __init__(self,x,y,d,color):
        self.color=color
        self.d=d
        self.x=x
        self.y=y
    def turnColor(self):
        if self.color==".":return "#"
        else:return "."

h,w=map(int,input().split())
a=[[str(i) for i in input()] for j in range(h)]
sx,sy=0,0
gx,gy=w-1,h-1
cw=0
mapA=[]
m=100000000000000
for my in range(h):
    l=[]
    for mx in range(w):
        l.append(m)
    mapA.append(l)

q=queue.Queue()
if a[0][0]==".":q.put(VInfo(0,0,0,"."))
else:q.put(VInfo(0,0,1,"#"))
l=[]
while not q.empty():
    now=q.get()
    if now.x==gx and now.y==gy:
        if now.color=="#":l.append((mapA[gy][gx]+2)//2)
        else:l.append((mapA[gy][gx]+1)//2)

    if now.y+1<h and a[now.y+1][now.x]==now.color and mapA[now.y+1][now.x]>now.d:
            mapA[now.y+1][now.x]=now.d
            q.put(VInfo(now.x,now.y+1,now.d,now.color))
    if now.y+1<h and a[now.y+1][now.x]!=now.color and mapA[now.y+1][now.x]>now.d:
            mapA[now.y+1][now.x]=now.d
            q.put(VInfo(now.x,now.y+1,now.d+1,now.turnColor()))
    if now.x+1<w and a[now.y][now.x+1]==now.color and mapA[now.y][now.x+1]>now.d:
            mapA[now.y][now.x+1]=now.d
            q.put(VInfo(now.x+1,now.y,now.d,now.color))
    if now.x+1<w and a[now.y][now.x+1]!=now.color and mapA[now.y][now.x+1]>now.d:
            mapA[now.y][now.x+1]=now.d
            q.put(VInfo(now.x+1,now.y,now.d+1,now.turnColor()))
print(min(l))
### BUGGY CODE ###

# -*- coding: utf-8 -*-
# 整数の入力
n = int(input())
h_list = input().split()
h_list = [int(h) for h in h_list]

count = 0

for i in range(n):
    a_height = h_list[i]
    if n - 1 - i <= a_height:
        continue
    for k in range(i + 1 + a_height, n):
        b_height = h_list[k]
        if k - i == a_height + b_height:
            count += 1

print(count)


### FIXED CODE ###

# -*- coding: utf-8 -*-
# 整数の入力
n = int(input())
h_list = input().split()
h_list = [int(h) for h in h_list]

count = 0
result_dict = {}

for i in range(n):
    key = (i+1) + h_list[i]
    value = result_dict.get(key, 0)
    result_dict[key] = value + 1

for j in range(n):
    key = (j+1) - h_list[j]
    count += result_dict.get(key, 0)

print(count)
### BUGGY CODE ###

import bisect

N,M = [int(x) for x in input().split()]

l = [[int(x) for x in input().split()] for _ in range(M)]



def do(l):
    

    count = 1

    l.sort()
    while True:
        for i in range(len(l)):
            #print(l)
            l1 = [v1 for (v1,_) in l]
            l2 = [v2 for (_,v2) in l]
            l1.sort()
            l2.sort()

            nx = l2[0]
            if l[i][0] >= nx:
                #print("i")
                #print(i)
                l = l[i:]
                #print(count)

                count+=1
                break
            if i >= len(l)-1:
                return count




result = do(l)
print(result)

### FIXED CODE ###

import bisect

N,M = [int(x) for x in input().split()]

l = [[int(x) for x in input().split()] for _ in range(M)]



def do(l):

    count = 1

    l.sort()
    right = l[0][1]


    for i in range(len(l)):
        if l[i][0] >= right:
            right = l[i][1]
            count+=1
            continue
        if l[i][1] < right:
            right = l[i][1]
    return count

testl = [[x,x+1] for x in range(1)]

result = do(l)
print(result)
### BUGGY CODE ###

N, M = map(int, input().split())
v = set()


def dfs(graph, start, visited):
    stack = [start]
    visited.add(start)
    while stack:
        label = stack.pop(0)
        for node in g[label]:
            if node not in visited:
                visited.add(node)
                stack.append(node)
    return visited


g = {i: [] for i in range(1, N + 1)}
for i in range(M):
    x, y, z = map(int, input().split())
    g[x].append(y)
    g[y].append(x)
ans = 0
for i in range(1, N + 1):
    if i not in v:
        ans += 1
        dfs(g, i, v)
print(ans)

### FIXED CODE ###

N, M = map(int, input().split())
v = set()


def dfs(graph, start, visited):
    stack = [start]
    visited.add(start)
    while stack:
        label = stack.pop(0)
        for node in g[label]:
            if node not in visited:
                visited.add(node)
                stack.append(node)
    return visited


g = {i: [] for i in range(1, N + 1)}
for i in range(M):
    x, y, z = map(int, input().split())
    g[x].append(y)
    g[y].append(x)
ans = 0
for i in range(1, N + 1):
    if i not in v:
        ans += 1
        dfs(g, i, v)
print(ans)
### BUGGY CODE ###

import sys
input=sys.stdin.readline

def calc():
  n=int(input())
  arr=list(map(int,input().split()))
  l=int(input())
  pos=0
  dbl=[[0]*(n+1) for _ in range(17)]
  for i in range(n):
    for j in range(pos,n):
      if arr[j]-arr[i]>l:
        dbl[0][i+1]=j
        pos=j
        break
    else:
      dbl[0][i+1]=n
  for i in range(1,17):
    for j in range(n+1):
      dbl[i][j]=dbl[i-1][dbl[i-1][j]]
  q=int(input())
  for _ in range(q):
    a,b=map(int,input().split())
    if a>b:
      a,b=b,a
    l=0
    r=b-a+1
    while r-l!=1:
      mid=(l+r)//2
      tmp=a
      for i in range(17):
        if mid&(1<<i):
          tmp=dbl[i][tmp]
      if tmp>=b:
        r=mid
      else:
        l=mid
    print(r)
calc()

### FIXED CODE ###

import bisect
import sys
input=sys.stdin.readline

def calc():
  n=int(input())
  arr=list(map(int,input().split()))
  l=int(input())
  pos=0
  dbl=[[0]*(n+1)]
  for i in range(n):
      dbl[0][i+1]=bisect.bisect_right(arr,arr[i]+l)
  for _ in range(n.bit_length()-1):
    tmp=[0]*(n+1)
    for i in range(n+1):
      tmp[i]=dbl[-1][dbl[-1][i]]
    dbl.append(tmp)
  q=int(input())
  for _ in range(q):
    a,b=map(int,input().split())
    if a>b:
      a,b=b,a
    l=0
    r=b-a+1
    while r-l!=1:
      mid=(l+r)//2
      tmp=a
      for i in range(mid.bit_length()):
        if mid&(1<<i):
          tmp=dbl[i][tmp]
      if tmp>=b:
        r=mid
      else:
        l=mid
    print(r)
calc()