Buggy python submission (verdict: Runtime Error):
import sys
sys.setrecursionlimit(10 ** 5)
n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Fixed submission:
import sys
sys.setrecursionlimit(10 ** 6)
import sys
def input():
    return sys.stdin.readline()[:-1]

n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
sys.setrecursionlimit(10 ** 6)
n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Fixed submission:
import sys
sys.setrecursionlimit(10 ** 6)
import sys
def input():
    return sys.stdin.readline()[:-1]

n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Buggy python submission (verdict: Runtime Error):
n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Fixed submission:
import sys
sys.setrecursionlimit(10 ** 6)
import sys
def input():
    return sys.stdin.readline()[:-1]

n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Buggy python submission (verdict: Runtime Error):
n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Fixed submission:
import sys
sys.setrecursionlimit(10 ** 6)
import sys
def input():
    return sys.stdin.readline()[:-1]

n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)

Buggy python submission (verdict: Runtime Error):
n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    point[a-1] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next,now)
        
dfs(0)
print(*point)

Fixed submission:
import sys
sys.setrecursionlimit(10 ** 6)
import sys
def input():
    return sys.stdin.readline()[:-1]

n,q = map(int,input().split())
tree = [[] for _ in range(n)]
point = [0] * n

for _ in range(n-1):
    a,b = map(int,input().split())
    tree[a-1].append(b-1)
    tree[b-1].append(a-1)
    
for _ in range(q):
    a,b = map(int,input().split())
    a -= 1
    point[a] += b
    
def dfs(now, prev = -1):
    for next in tree[now]:
        if next == prev:
            continue
        point[next] += point[now]
        
        dfs(next, now)
        
dfs(0)
print(*point)