結果
| 問題 |
No.240 ナイト散歩
|
| ユーザー |
Coki628
|
| 提出日時 | 2020-05-28 01:01:16 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
AC
|
| 実行時間 | 35 ms / 2,000 ms |
| コード長 | 1,903 bytes |
| コンパイル時間 | 117 ms |
| コンパイル使用メモリ | 13,056 KB |
| 実行使用メモリ | 11,136 KB |
| 最終ジャッジ日時 | 2024-10-13 03:58:17 |
| 合計ジャッジ時間 | 2,290 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 30 |
ソースコード
import sys
def input(): return sys.stdin.readline().strip()
def list2d(a, b, c): return [[c] * b for i in range(a)]
def list3d(a, b, c, d): return [[[d] * c for j in range(b)] for i in range(a)]
def list4d(a, b, c, d, e): return [[[[e] * d for j in range(c)] for j in range(b)] for i in range(a)]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10 ** 9)
INF = 10 ** 19
MOD = 10 ** 9 + 7
EPS = 10 ** -10
def bfs(src):
from collections import deque
que = deque([src])
dist = {}
dist[src] = 0
while que:
x, y = que.popleft()
if dist[(x, y)] >= 3:
continue
if (x-2, y-1) not in dist:
dist[(x-2, y-1)] = dist[(x, y)] + 1
que.append((x-2, y-1))
if (x-2, y+1) not in dist:
dist[(x-2, y+1)] = dist[(x, y)] + 1
que.append((x-2, y+1))
if (x-1, y-2) not in dist:
dist[(x-1, y-2)] = dist[(x, y)] + 1
que.append((x-1, y-2))
if (x-1, y+2) not in dist:
dist[(x-1, y+2)] = dist[(x, y)] + 1
que.append((x-1, y+2))
if (x+1, y-2) not in dist:
dist[(x+1, y-2)] = dist[(x, y)] + 1
que.append((x+1, y-2))
if (x+1, y+2) not in dist:
dist[(x+1, y+2)] = dist[(x, y)] + 1
que.append((x+1, y+2))
if (x+2, y-1) not in dist:
dist[(x+2, y-1)] = dist[(x, y)] + 1
que.append((x+2, y-1))
if (x+2, y+1) not in dist:
dist[(x+2, y+1)] = dist[(x, y)] + 1
que.append((x+2, y+1))
return dist
x, y = MAP()
res = bfs((0, 0))
if (x, y) in res:
YES()
else:
NO()
Coki628