46 lines
1.1 KiB
Python
46 lines
1.1 KiB
Python
import sys
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input = sys.stdin.readline
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def find(deps, country) -> int:
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a = country
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while a != deps[a]:
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a = deps[a]
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return a
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def union(deps, win, lose):
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rw, rl = find(deps, win), find(deps, lose)
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if rw == rl:
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if rl == lose:
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deps[rl] = win
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deps[win] = win
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else:
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deps[rl] = rw
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def get_sovereigns(N, deps):
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return [i for i in range(N) if i == deps[i]]
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if __name__ == "__main__":
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N, M = map(int, input().split())
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name = [input().split()[2] for _ in range(N)]
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name.sort()
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name2index = {name[i]: i for i in range(N)}
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index2name = [name[i] for i in range(N)]
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deps = [i for i in range(N)]
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for _ in range(M):
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string_a, string_b, result = input().split(",")
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name_a, name_b = string_a.split()[2], string_b.split()[2]
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ia, ib = name2index[name_a], name2index[name_b]
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result = int(result)
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union(deps, ia, ib) if result == 1 else union(deps, ib, ia)
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sovereigns = get_sovereigns(N, deps)
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print(len(sovereigns))
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[print(f"Kingdom of {index2name[i]}") for i in sovereigns]
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