Buggy python submission (verdict: Time Limit Exceeded):
from collections import deque

n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Buggy python submission (verdict: Time Limit Exceeded):
from collections import deque

n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Buggy python submission (verdict: Time Limit Exceeded):
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
calc_tree = []

for i in range(n):
  tmp = [i+1]
  for j in range(n-1):
    if tree[j][0] in tmp:
      tmp.append(tree[j][1])
  calc_tree.append(tmp)
#print(calc_tree)
ans = [0] * n
  
for i in range(q):
  order = px[i][0] -1
  for j in calc_tree[order]:
    ans[j-1] += px[i][1]
    
for i in ans:
  print(i,end=' ')


Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Buggy python submission (verdict: Time Limit Exceeded):
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
calc_tree = [[] for i in range(n)]

for i in range(n)[::-1]:
  if calc_tree[i] == []:
    
    tmp = [i+1]
  
    for j in range(n-1)[::-1]:
      if tree[j][1] in tmp:
        tmp.append(tree[j][0])
    calc_tree[i] = tmp
    for j in range(1,len(tmp)):
      if calc_tree[j] == []:
        for k in range(j,len(tmp)):
          calc_tree[tmp[j]-1].append(tmp[k])
  
    calc_tree[i] = (tmp)


ans = [0] * n
  
for i in px:
  for j in range(n):
    if i[0] in calc_tree[j]:
      ans[j] += i[1]
    
for i in ans:
  print(i,end=' ')

Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Buggy python submission (verdict: Time Limit Exceeded):
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
calc_tree = [[] for i in range(n)]

for i in range(n)[::-1]:
  if calc_tree[i] == []:
    
    tmp = [i+1]
  
    for j in range(n-1)[::-1]:
      if tree[j][1] in tmp:
        tmp.append(tree[j][0])
    calc_tree[i] = tmp
    for j in range(1,len(tmp)):
      if calc_tree[j] == []:
        for k in range(j,len(tmp)):
          calc_tree[tmp[j]-1].append(tmp[k])
  
    calc_tree[i] = (tmp)


ans = [0] * n
  
for i in px:
  for j in range(n):
    if i[0] in calc_tree[j]:
      ans[j] += i[1]
    
for i in ans:
  print(i,end=' ')

Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)

Buggy python submission (verdict: Time Limit Exceeded):
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
calc_tree = []

for i in range(n):
  tmp = [i+1]
  for j in range(n-1):
    if tree[j][0] in tmp:
      tmp.append(tree[j][1])
  calc_tree.append(tmp)
#print(calc_tree)
ans = [0] * n
  
for i in range(q):
  order = px[i][0] -1
  for j in calc_tree[order]:
    ans[j-1] += px[i][1]
    
for i in ans:
  print(i,end=' ')

Fixed submission:
from collections import deque
import sys
def input():
   return sys.stdin.readline()[:-1]
  
n,q = map(int, input().split())
tree = [[int(i) for i in input().split()] for i in range(n-1)] 
px = [[int(i) for i in input().split()] for i in range(q)] 
A = [set() for i in range(n)]
B = [set() for i in range(n)]
C = [set() for i in range(n)]
flag = [False] * n

for i,a in enumerate(tree):
  A[a[1]-1].add(tree[i][0])
  B[a[0]-1].add(tree[i][1])

for i in range(n):
  C[i] = A[i] | B[i]

ans = [0] * n

for i in px:

  ans[i[0]-1] += i[1]
  
cr = deque()
cr.append(1)
flag[0] = True

while cr:
  c = cr.popleft()
  flag[c-1] = True
  for i in C[c-1]:
    if flag[i-1]:
      continue
    else:
      cr.append(i)
      ans[i-1] += ans[c-1]
print(*ans)