結果
| 問題 |
No.5007 Steiner Space Travel
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-07-30 16:51:22 |
| 言語 | Text (cat 8.3) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,634 bytes |
| コンパイル時間 | 33 ms |
| 実行使用メモリ | 6,956 KB |
| スコア | 0 |
| 最終ジャッジ日時 | 2022-07-30 16:51:34 |
| 合計ジャッジ時間 | 10,333 ms |
|
ジャッジサーバーID (参考情報) |
judge10 / judge11 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 30 |
ソースコード
import sys
import time
import random
input = lambda: sys.stdin.readline().rstrip()
# ----------------------- #
n, m = map(int, input().split())
ab = [tuple(map(int, input().split())) for _ in range(n)]
ab_set = set(ab)
ALP = 5
LIMIT = 0.85
START = time.time()
def calc_score(root):
ans = 0
E = []
for i in range(1, n):
u, v = root[i][1]-1, root[i-1][1]-1
tmp = ALP * ALP * ((ab[u][0] - ab[v][0])**2 + (ab[u][1] - ab[v][1])**2)
E.append((i, tmp))
ans += tmp
v = root[-1][1]
ans += ALP * ALP * ((ab[0][0] - ab[v][0])**2 + (ab[0][1] - ab[v][1])**2)
E.sort(lambda x: -x[1])
stations = []
for i,c in E[:8]:
u, v = root[i][1]-1, root[i-1][1]-1
stations.append(((ab[u][0] + ab[v][0])//2, (ab[u][1] + ab[v][1])//2))
for i in range(8):
root.insert(E[i][0]+i, (2, i+1, 0))
return root, stations, ans
def make_stations():
stations = []
return stations
def make_root():
A = [(1, i, ab[i-1]) for i in range(1, n+1)]
C = A[1:]
c = []
d = random.randint(50, 600)
for i in (range(1000//d+2)):
for j in (range(1000//d+2)):
tmp = []
for k in C:
if d*i <= k[2][0] <= d*(i+1) and d*j <= k[2][1] <= d*(j+1):
tmp.append(k)
for t in tmp:
C.remove(t)
tmp.sort(key=lambda x: x[2])
c.extend(tmp)
return A[:1] + c
vestscore = float('inf')
st, ro = [], []
while time.time() - START < LIMIT:
root = make_root()
root, stations, score = calc_score(root)
if score < vestscore:
vestscore = score
st = stations[:]
ro = root[:]
for i in st:
print(*i[:2])
print(len(ro)+1)
for i,j,_ in ro:
print(i, j)
print(1, 1)