結果
| 問題 |
No.307 最近色塗る問題多くない?
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-11-28 01:55:23 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,029 bytes |
| コンパイル時間 | 90 ms |
| コンパイル使用メモリ | 13,056 KB |
| 実行使用メモリ | 23,384 KB |
| 最終ジャッジ日時 | 2024-09-14 01:46:24 |
| 合計ジャッジ時間 | 10,903 ms |
|
ジャッジサーバーID (参考情報) |
judge6 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 28 TLE * 1 -- * 7 |
ソースコード
class DisjointSet(object):
def __init__(self, n):
self.parent = list(range(n))
self.rank = [0] * n
self.num = n # number of disjoint sets
def union(self, x, y):
self._link(self.find_set(x), self.find_set(y))
def _link(self, x, y):
if x == y:
return
self.num -= 1
if self.rank[x] > self.rank[y]:
self.parent[y] = x
else:
self.parent[x] = y
if self.rank[x] == self.rank[y]:
self.rank[y] += 1
def find_set(self, x):
xp = self.parent[x]
if xp != x:
self.parent[x] = self.find_set(xp)
return self.parent[x]
class PaintSet(object):
def __init__(self, color, H, W):
self.color = color
self.H = H
self.W = W
self.ds = DisjointSet(H * W)
ds = self.ds
pos = 0
for r in range(H):
for c in range(W):
col = color[pos]
if r+1 < H and color[pos + W] == col:
ds.union(pos, pos + W)
if c+1 < W and color[pos + 1] == col:
ds.union(pos, pos + 1)
pos += 1
Es = [set() for i in range(W * H)]
pos = 0
for r in range(H):
for c in range(W):
col = color[pos]
p = ds.find_set(pos)
if r+1 < H and color[pos + W] != col:
p2 = ds.find_set(pos + W)
Es[p].add(p2)
Es[p2].add(p)
if c+1 < W and color[pos + 1] != col:
p2 = ds.find_set(pos + 1)
Es[p].add(p2)
Es[p2].add(p)
pos += 1
self.Es = Es
def paint(self, r, c, x):
p = self.ds.find_set(r * self.W + c)
if self.color[p] == x:
return
self.color[p] = x
if self.ds.num == 1:
return
Es = self.Es
ds = self.ds
new_neighbour = set()
for v in Es[p]:
pv = ds.find_set(v)
ds.union(p, pv)
for u in Es[pv]:
new_neighbour.add(ds.find_set(u))
Es[pv] = set()
if p in new_neighbour:
new_neighbour.remove(p)
newp = ds.find_set(p)
Es[newp] = new_neighbour
def pprint(self):
W = self.W
H = self.H
color = self.color
ds = self.ds
pos = 0
for r in range(H):
row = []
for c in range(W):
col = color[ds.find_set(pos)]
row.append(col)
pos += 1
print(*row)
if __name__ == "__main__":
H, W = map(int, input().split())
color = []
for r in range(H):
color.extend(list(map(int, input().split())))
paintset = PaintSet(color, H, W)
Q = int(input())
for q in range(Q):
r, c, x = map(int, input().split())
paintset.paint(r-1, c-1, x)
paintset.pprint()