class Scanner { private var stack = [String]() private var index = 0 func peek() -> String { if stack.count == index { stack += readLine()!.split(separator: " ").map{ String($0) } } return stack[index] } func next() -> String { let value = peek() index += 1 return value } func nextInt() -> Int { return Int(next())! } func nextDouble() -> Double { return Double(next())! } } let scanner = Scanner() let N = scanner.nextInt() var G = [[Int]](repeating: [], count: N) for _ in 0 ..< N - 1 { let u = scanner.nextInt() - 1 let v = scanner.nextInt() - 1 G[u].append(v) G[v].append(u) } var answer = [Int](repeating: 1, count: N) var size = [Int](repeating: 0, count: N) func walk(_ v: Int, _ parent: Int?) { size[v] = 1 for c in G[v] where c != parent { walk(c, v) answer[v] += size[v] * size[c] * 2 size[v] += size[c] } } walk(0, nil) answer.forEach { print($0) }