Buggy python submission (verdict: Runtime Error):
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = float('inf') 
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j] 
        if cost[i|move2] < cost[i]+a[j]:
        cost[i|move2] = cost[i]+a[j]

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])

Fixed submission:
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = float('inf') 
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j] 
        if cost[i|move2] > cost[i]+a[j]:
            cost[i|move2] = cost[i]+a[j]

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])

Buggy python submission (verdict: Time Limit Exceeded):
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = float('inf') 
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j]
        cost[i|move2] = min(cost[i|move2], cost[i]+a[j])

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])

Fixed submission:
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = float('inf') 
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j] 
        if cost[i|move2] > cost[i]+a[j]:
            cost[i|move2] = cost[i]+a[j]

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])

Buggy python submission (verdict: Time Limit Exceeded):
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = (10**5) * 13
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j]
        cost[i|move2] = min(cost[i|move2], cost[i]+a[j])

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])

Fixed submission:
#%%
N, M = map(int, input().split())

a = [0] * M
b = [0] * M
c = [[] for _ in range(M)]
for i in range(M):
    a[i], b[i] = map(int, input().split())
    c[i] = list(map(int, input().split()))

inf = float('inf') 
cost = [inf] * (2**N)
cost[0] = 0

movement = []
for i in range(M):
    move = 0
    for j in range(len(c[i])):
        move += 2 ** (c[i][j]-1)
    movement.append(move)

for i in range(2**N):
    for j in range(M):
        move2 = movement[j] 
        if cost[i|move2] > cost[i]+a[j]:
            cost[i|move2] = cost[i]+a[j]

if cost[2**N-1] == inf:
    print(-1)
else:
    print(cost[2**N-1])