結果
| 問題 |
No.1668 Grayscale
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-03-01 20:13:09 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,947 bytes |
| コンパイル時間 | 279 ms |
| コンパイル使用メモリ | 82,408 KB |
| 実行使用メモリ | 235,572 KB |
| 最終ジャッジ日時 | 2025-03-01 20:13:19 |
| 合計ジャッジ時間 | 8,952 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 16 WA * 6 |
ソースコード
## https://yukicoder.me/problems/no/1668
from collections import deque
def main():
H, W, N = map(int, input().split())
C = []
for _ in range(H):
C.append(list(map(int, input().split())))
queues = [[] for _ in range(N)]
passed = [[-1] * W for _ in range(H)]
colors = [[-1] * W for _ in range(H)]
for h in range(H):
for w in range(W):
c = C[h][w]
queues[c - 1].append((h, w))
max_xx = 0
for n in range(N):
array = queues[n]
for s_h, s_w in array:
if passed[s_h][s_w] == -1:
max_x = max_xx
queue = deque()
queue.append((s_h, s_w))
ans_array = [(s_h, s_w)]
passed[s_h][s_w] = 1
while len(queue) > 0:
h, w = queue.popleft()
for dh, dw in ((0, 1), (0, -1), (1, 0), (-1, 0)):
new_h = dh + h
new_w = dw + w
if 0 <= new_h < H and 0 <= new_w < W:
if C[new_h][new_w] > C[h][w]:
continue
elif C[new_h][new_w] < C[h][w]:
max_x = max(max_x, colors[new_h][new_w])
else:
if passed[new_h][new_w] == -1:
passed[new_h][new_w] = 1
ans_array.append((new_h, new_w))
queue.append((new_h, new_w))
for h, w in ans_array:
colors[h][w] = max_x + 1
max_xx = max_x
answer = -1
for h in range(H):
for w in range(W):
answer = max(answer, colors[h][w])
print(answer)
if __name__ == "__main__":
main()