結果
問題 |
No.1065 電柱 / Pole (Easy)
|
ユーザー |
![]() |
提出日時 | 2021-11-07 11:16:18 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 964 ms / 2,000 ms |
コード長 | 1,314 bytes |
コンパイル時間 | 343 ms |
コンパイル使用メモリ | 82,560 KB |
実行使用メモリ | 143,360 KB |
最終ジャッジ日時 | 2024-11-08 23:18:08 |
合計ジャッジ時間 | 23,367 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 46 |
ソースコード
import sys sys.setrecursionlimit(200005) int1 = lambda x: int(x)-1 p2D = lambda x: print(*x, sep="\n") def II(): return int(sys.stdin.buffer.readline()) def LI(): return list(map(int, sys.stdin.buffer.readline().split())) def LI1(): return list(map(int1, sys.stdin.buffer.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def BI(): return sys.stdin.buffer.readline().rstrip() def SI(): return sys.stdin.buffer.readline().rstrip().decode() # dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] dij = [(0, 1), (1, 0), (1, 1), (1, -1)] inf = 10**16 # md = 998244353 md = 10**9+7 from heapq import * def Dist(u, v): x0, y0 = xy[u] x1, y1 = xy[v] return ((x1-x0)**2+(y1-y0)**2)**0.5 n, m = LI() su, gu = LI1() xy = LLI(n) to = [[] for _ in range(n)] for _ in range(m): u, v = LI1() d = Dist(u, v) to[u].append((v, d)) to[v].append((u, d)) dist = [inf]*n dist[su] = 0 hp = [(0, su)] while hp: d, u = heappop(hp) if u == gu: print(d) break if d > dist[u]: continue for v, c in to[u]: nd = d+c if nd >= dist[v]: continue dist[v] = nd heappush(hp, (nd, v))