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from collections import defaultdict n,m = list(map(int, input().split()))
A = defaultdict(list) for i in range(1, n+1): A[input()].append(i)
for _ in range(m): print(*A[input()] or [-1])
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DefaultDict Tutorial
You are viewing a single comment's thread. Return to all comments →
from collections import defaultdict n,m = list(map(int, input().split()))
A = defaultdict(list) for i in range(1, n+1): A[input()].append(i)
for _ in range(m): print(*A[input()] or [-1])