Problem p02936 (python)

Fixed submission:
n,q=map(int,input().split())
L=[[] for i in range(n+1)]
S=[0 for i in range(n+1)]
V=[0 for i in range(n+1)]

for _ in range(n-1):
    a,b=map(int,input().split())
    L[a].append(b)   
    L[b].append(a)

for _ in range(q):
    p,x=map(int,input().split())
    S[p]+=x


que=[1]
head=0
V[1]=1
while len(que)>head:
    now=que[head]
    head+=1
    for nex in L[now]:
        if V[nex]==0:
            V[nex]=1
            que.append(nex)
            S[nex]+=S[now]

print(" ".join([str(i) for i in S[1:]]))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
ki[0]="null"
 
for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)
 
scores=[0 for i in range(n+1)]
scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x
 
 
ans=[0 for i in range(n+1)]
ans[0]="null"
point=0
 
 
def tansa(n,point):
    point+=scores[n]
    for p in ki[n]:
        try:
            tansa(p,point)
        except:
            pass
    else:
        ans[n]=point
        
tansa(1,0)
 
ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
ki[0]="null"
 
for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)
 
scores=[0 for i in range(n+1)]
scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x
 
 
ans=[0 for i in range(n+1)]
ans[0]="null"
point=0
 
 
def tansa(n,point):
    point+=scores[n]
    for p in ki[n]:
        try:
            tansa(p,point)
    else:
        ans[n]=point
        
tansa(1,0)
 
ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+100)]
#ki[0]="null"

for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)
    ki[b].append(a)

scores=[0 for i in range(n+100)]
#scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x


ans=[0 for i in range(n+100)]
#ans[0]="null"
point=0

ed=[]

def tansa(n,point):
    global ed
    point+=scores[n]
    ed.append(n)
    for p in ki[n]:
        if not p in ed:
            tansa(p,point)
    else:
        ans[n]=point
        
tansa(1,0)

ans=ans[1:n+1]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
#ki[0]="null"

for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)
    ki[b].append(a)

scores=[0 for i in range(n+1)]
#scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x


ans=[0 for i in range(n+1)]
#ans[0]="null"
point=0

ed=[]

def tansa(n,point):
    global ed
    point+=scores[n]
    ed.append(n)
    for p in ki[n]:
        if not p in ed:
            try:
                tansa(p,point)
            except:
                return 0
    else:
        ans[n]=point
        
tansa(1,0)

ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
#ki[0]="null"

for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)
    ki[b].append(a)

scores=[0 for i in range(n+1)]
#scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x


ans=[0 for i in range(n+1)]
#ans[0]="null"
point=0

ed=[]

def tansa(n,point):
    global ed
    point+=scores[n]
    ed.append(n)
    for p in ki[n]:
        if not p in ed:
            tansa(p,point)
    else:
        ans[n]=point
        
tansa(1,0)

ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
ki[0]="null"

for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)

scores=[0 for i in range(n+1)]
scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x


ans=[0 for i in range(n+1)]
ans[0]="null"
point=0


def tansa(n,point):
    point+=scores[n]
    for p in ki[n]:
        tansa(p,point)
    else:
        ans[n]=point
        
tansa(1,0)

ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans))

Buggy submission (verdict: Runtime Error):
n,q=map(int,input().split())
ki=[[] for i in range(n+1)]
ki[0]="null"

for i in range(n-1):
    a,b=map(int,input().split())
    ki[a].append(b)

scores=[0 for i in range(n+1)]
scores[0]="null"
for i in range(q):
    p,x=map(int,input().split())
    scores[p]+=x


ans=[0 for i in range(n+1)]
ans[0]="null"
point=0


def tansa(n,point):
    point+=scores[n]
    for p in ki[n]:
        tansa(p,point)
    else:
        ans[n]=point
        
tansa(1,0)

ans=ans[1:]
ans=[str(i) for i in ans]
print(" ".join(ans[1:]))