for i in range(m): for j in range(n): if road[i][j]!=1: island.append(i*n+j) if road[i][j]==2: people.append(i*n+j) if road[i][j]==3: restrant.append(i*n+j) print(island) for i in range(len(island)): for j in range(i+1,len(island)): if isnear(island[i],island[j],n): union(island[i],island[j]) print(island) print(fa) res=[] for i in people: onepeople=[] for j in restrant: if find(i)==find(j): onepeople.append(j) res.append(onepeople) print(len(list(set(res[0])&;set(res[1]))))
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