結果
| 問題 |
No.1266 7 Colors
|
| コンテスト | |
| ユーザー |
nagiss
|
| 提出日時 | 2020-10-24 03:49:21 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
AC
|
| 実行時間 | 1,451 ms / 3,000 ms |
| コード長 | 2,170 bytes |
| コンパイル時間 | 88 ms |
| コンパイル使用メモリ | 13,056 KB |
| 実行使用メモリ | 41,288 KB |
| 最終ジャッジ日時 | 2024-07-21 14:52:39 |
| 合計ジャッジ時間 | 21,285 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 19 |
ソースコード
import sys
class UnionFind:
def __init__(self, N):
p = [-1] * N
def root(x):
while p[x] >= 0:
x = p[x]
return x
def same(x, y):
return root(x) == root(y)
def unite(x, y):
x = root(x)
y = root(y)
if x == y:
return
if p[x] > p[y]:
p[y] += p[x]
p[x] = y
else:
p[x] += p[y]
p[y] = x
def count(x):
return -p[root(x)]
self.root = root
self.same = same
self.unite = unite
self.count = count
def main():
input = sys.stdin.buffer.readline
N, M, Q = map(int, input().split())
S = [int(input(), 2) for _ in range(N)]
G = [[] for _ in range(N)]
for i in range(M):
u, v = map(int, input().split())
u -= 1
v -= 1
G[u].append(v)
G[v].append(u)
uf = UnionFind(7 * N)
for v, s in enumerate(S):
ones = [i for i in range(7) if s>>(6-i)&1]
v_offset = 7 * v
if len(ones) >= 2:
for o1, o2 in zip(ones, ones[1:]):
if o1 + 1 == o2:
uf.unite(v_offset+o1, v_offset+o2)
if ones[0] == 0 and ones[-1] == 6:
uf.unite(v_offset, v_offset+6)
for u in G[v]:
for o in ones:
if S[u]>>(6-o)&1:
uf.unite(v_offset+o, u*7+o)
Ans = []
for _ in range(Q):
t, x, y = map(int, input().split())
x -= 1
if t == 1:
v_offset = x * 7
d = 7-y
S[x] |= 1 << d
v = v_offset + (y-1)
d2 = (d-1)%7
if S[x] >> d2 & 1:
uf.unite(v, v_offset+y%7)
d2 = (d+1)%7
if S[x] >> d2 & 1:
uf.unite(v, v_offset+(y-2)%7)
for u in G[x]:
if S[u]>>d&1:
u = u * 7 + y-1
uf.unite(v, u)
else:
ans = uf.count(x*7)
Ans.append(ans)
print("\n".join(map(str, Ans)))
main()
nagiss