The Resistance is trying to take control over as many planets of a particular solar system as possible. Princess Heidi is in charge of the fleet, and she must send ships to some planets in order to maximize the number of controlled planets.

The Galaxy contains N planets, connected by bidirectional hyperspace tunnels in such a way that there is a unique path between every pair of the planets.

A planet is controlled by the Resistance if there is a Resistance ship in its orbit, or if the planet lies on the shortest path between some two planets that have Resistance ships in their orbits.

Heidi has not yet made up her mind as to how many ships to use. Therefore, she is asking you to compute, for every K = 1, 2, 3, ..., N, the maximum number of planets that can be controlled with a fleet consisting of K ships.


-----Input-----

The first line of the input contains an integer N (1 ≤ N ≤ 10^5) – the number of planets in the galaxy.

The next N - 1 lines describe the hyperspace tunnels between the planets. Each of the N - 1 lines contains two space-separated integers u and v (1 ≤ u, v ≤ N) indicating that there is a bidirectional hyperspace tunnel between the planets u and v. It is guaranteed that every two planets are connected by a path of tunnels, and that each tunnel connects a different pair of planets.


-----Output-----

On a single line, print N space-separated integers. The K-th number should correspond to the maximum number of planets that can be controlled by the Resistance using a fleet of K ships.


-----Examples-----
Input
3
1 2
2 3

Output
1 3 3 
Input
4
1 2
3 2
4 2

Output
1 3 4 4 


-----Note-----

Consider the first example. If K = 1, then Heidi can only send one ship to some planet and control it. However, for K ≥ 2, sending ships to planets 1 and 3 will allow the Resistance to control all planets.

Source: codeforces | Difficulty: HARD
Tags: Graph algorithms

Graph traversal

Greedy algorithms

Tree algorithms

Data structures


Solutions:
from sys import stdin
from collections import defaultdict
import heapq
n = int(stdin.readline())
a = [[] for _ in range(n)]
for _ in range(n - 1):
	e = stdin.readline().split(' ')
	(u, v) = (int(e[0]), int(e[1]))
	a[u - 1].append(v - 1)
	a[v - 1].append(u - 1)
leaves = [i for i in range(n) if len(a[i]) == 1]

def dfs_from(root):
	depth = defaultdict(int)
	child = {}
	parent = defaultdict(lambda : -1)
	stack = [root]
	visited = [False for _ in range(n)]
	while len(stack) > 0:
		crt = stack[-1]
		if visited[crt]:
			stack.pop(-1)
			if len(a[crt]) > 1:
				(child[crt], depth[crt]) = max([(c, depth[c] + 1) for c in a[crt] if c != parent[crt]], key=lambda x: x[1])
			else:
				child[crt] = -1
				depth[crt] = 0
			continue
		visited[crt] = True
		for next in a[crt]:
			if next != parent[crt]:
				stack.append(next)
				parent[next] = crt
	return (depth, child)
first_choice = leaves[0]
(d1, child1) = dfs_from(first_choice)
root = max([(a[leaf][0], d1[a[leaf][0]]) for leaf in leaves], key=lambda leaf_depth: leaf_depth[1])[0]
while child1[root] != -1:
	root = child1[root]
(depth, child) = dfs_from(root)
solution = [1]
pq = []
for (k, v) in depth.items():
	heapq.heappush(pq, (-v, k))
seen = [False for _ in range(n)]
seen[root] = True
while len(pq) > 0:
	(_, best) = heapq.heappop(pq)
	if seen[best]:
		continue
	path = []
	c = best
	s = 0
	while c != -1:
		seen[c] = True
		c = child[c]
		s = s + 1
	s = s + solution[-1]
	solution.append(s)
for _ in range(n - min(len(solution), n)):
	solution.append(n)
print(' '.join([str(s) for s in solution]))