Problem p02762 (python)

Fixed submission:
from collections import deque

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

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

for i in range(k):
    c,d =(map(int,input().split()))
    c,d = c-1,d-1
    cannotgo[c].append(d)
    cannotgo[d].append(c)
# print(a)
# cango = [[]for i in range(n)]
# for i in a:
#     cango[i[0]-1].append(i[1]-1)
#     cango[i[1]-1].append(i[0]-1)
# print(cango)

# cannotgo=[[]for i in range(n)]
# for i in c:
#     cannotgo[i[0]-1].append(i[1]-1)
#     cannotgo[i[1]-1].append(i[0]-1)
# # print(cannotgo)
alre = [False]*n
parent = [-1]*n
gro = {}
y = deque()
# print(gro)
for i in range(n):
    # if alre[i]==True:
    #     continue
    # gro[i]=set([i])
    y.append(i)
    leader = i
    cnt = 0 
    while len(y)>0:
        x = y.popleft()
        if parent[x]!=-1:
            continue
            # print(to)
        parent[x]=leader
        y.extend(cango[x])
        cnt +=1
    if cnt!=0:
        gro[leader]=cnt
# print(gro)
# print(parent)
ans = [0]*n
# print(ans)
for iam in range(n):
    # group = gro[parent[iam]]
    tmp_ans = gro[parent[iam]]
    tmp_ans -=1
    tmp_ans -= len(cango[iam])
    for block in cannotgo[iam]:
        if parent[block]==parent[iam] :
            tmp_ans -=1
    ans[iam]=tmp_ans
print(*ans, sep=' ')

Buggy submission (verdict: Runtime Error):
N, M, K = map(int, input().split())
F = [[] for _ in range(N)]
B = [[] for _ in range(N)]

# フレンドの隣接リスト
for _ in range(M):
    a, b = map(int, input().split())
    a, b = a - 1, b - 1
    F[a].append(b)
    F[b].append(a)

# ブロックの隣接リスト
for _ in range(K):
    c, d = map(int, input().split())
    c, d = c - 1, d - 1
    B[c].append(d)
    B[d].append(c)


# 交友関係グループ（辞書型）
D = {}
# グループの親
parent = [-1] * N
# 訪問管理
visited = [False] * N

for root in range(N):
    if visited[root]:
        continue

    D[root] = set([root])
    # 訪問先のスタック
    stack = [root]
    # 訪問先が無くなるまで
    while stack:
        # 訪問者をポップアップ
        n = stack.pop()
        # 訪問者を訪問済み
        visited[n] = True
        # 訪問者のグループの親を設定
        parent[n] = root

        # root のフレンドをグループと訪問先に追加
        D[root].add(to)
        stack.append(to)

ans = [0] * N
for iam in range(N):
    # 自分の交友関係グループを設定
    group = D[parent[iam]]
    # グループからフレンドと自分を除く
    tmp_ans = len(group) - len(F[iam]) - 1
    # グループからブロックを除く
    for block in B[iam]:
        if block in group:
            tmp_ans -= 1
    ans[iam] = tmp_ans

print(*ans, sep=' ')

Buggy submission (verdict: Runtime Error):
n,m,k = map(int,input().split())

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

for i in range(k):
    c,d =(map(int,input().split()))
    c,d = c-1,d-1
    cannotgo[c].appned(d)
    cannotgo[d].appned(c)
# print(a)
# cango = [[]for i in range(n)]
# for i in a:
#     cango[i[0]-1].append(i[1]-1)
#     cango[i[1]-1].append(i[0]-1)
# print(cango)

# cannotgo=[[]for i in range(n)]
# for i in c:
#     cannotgo[i[0]-1].append(i[1]-1)
#     cannotgo[i[1]-1].append(i[0]-1)
# # print(cannotgo)
alre = [False]*n
parent = [-1]*n
gro = {}

# print(gro)
for i in range(n):
    if alre[i]==True:
        continue
    gro[i]=set([i])
    stack = [i]
    while stack:
        x = stack.pop()
        alre[x]=True
        parent[x]=i
        for to in cango[x]:
            if alre[to]:
                continue
            # print(to)
            gro[i].add(to)
            stack.append(to)
# print(gro)
# print(parent)
ans = [0]*n
# print(ans)
for iam in range(n):
    group = gro[parent[iam]]
    tmp_ans = len(group)-len(cango[iam])-1
    for block in cannotgo[iam]:
        if block in group:
            tmp_ans -=1
    ans[iam]=tmp_ans
print(*ans, sep=' ')

Buggy submission (verdict: Runtime Error):
from collections import deque

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

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

for i in range(k):
    c,d =(map(int,input().split()))
    c,d = c-1,d-1
    cannotgo[c]=d
    cannotgo[d]=c
# print(a)
# cango = [[]for i in range(n)]
# for i in a:
#     cango[i[0]-1].append(i[1]-1)
#     cango[i[1]-1].append(i[0]-1)
# # print(cango)

# cannotgo=[[]for i in range(n)]
# for i in c:
#     cannotgo[i[0]-1].append(i[1]-1)
#     cannotgo[i[1]-1].append(i[0]-1)
# # print(cannotgo)
alre = [False]*n
parent = [-1]*n
gro = {}

# print(gro)
for i in range(n):
    if alre[i]==True:
        continue
    gro[i]=set([i])
    stack = [i]
    while stack:
        x = stack.pop()
        alre[x]=True
        parent[x]=i
        for to in cango[x]:
            if alre[to]:
                continue
            # print(to)
            gro[i].add(to)
            stack.append(to)
# print(gro)
# print(parent)
ans = [0]*n
# print(ans)
for iam in range(n):
    group = gro[parent[iam]]
    tmp_ans = len(group)-len(cango[iam])-1
    for block in cannotgo[iam]:
        if block in group:
            tmp_ans -=1
    ans[iam]=tmp_ans
print(*ans, sep=' ')