結果
| 問題 |
No.2375 watasou and hibit's baseball
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-07-07 22:33:32 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,029 bytes |
| コンパイル時間 | 291 ms |
| コンパイル使用メモリ | 81,792 KB |
| 実行使用メモリ | 129,536 KB |
| 最終ジャッジ日時 | 2024-07-21 18:45:48 |
| 合計ジャッジ時間 | 23,585 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 * 3 |
| other | AC * 14 WA * 22 |
ソースコード
from math import gcd
from bisect import bisect_left, bisect_right
from heapq import heappop, heappush
from collections import defaultdict, deque, Counter
import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
# n <= 1<<60 以下くらい
def popcnt(n):
c = (n & 0x5555555555555555) + ((n >> 1) & 0x5555555555555555)
c = (c & 0x3333333333333333) + ((c >> 2) & 0x3333333333333333)
c = (c & 0x0f0f0f0f0f0f0f0f) + ((c >> 4) & 0x0f0f0f0f0f0f0f0f)
c = (c & 0x00ff00ff00ff00ff) + ((c >> 8) & 0x00ff00ff00ff00ff)
c = (c & 0x0000ffff0000ffff) + ((c >> 16) & 0x0000ffff0000ffff)
c = (c & 0x00000000ffffffff) + ((c >> 32) & 0x00000000ffffffff)
return c
n, A, B = map(int, input().split())
ball = [list(map(int, input().split())) for i in range(n)]
dp = [[[0]*(n+1) for i in range(n+1)] for i in range(1 << n)]
for i in range(n):
dp[1 << i][i][-1] = 1
def dist(i, j):
xi, yi, ki = ball[i]
xj, yj, kj = ball[j]
return abs(xi-xj) + abs(yi-yj)
def speed(i,j):
xi, yi, ki = ball[i]
xj, yj, kj = ball[j]
return abs(ki-kj)
def judge1(i, j, cnt):
ok = 0
if cnt == 2 and A <= dist(i, j):
ok = 1
if B <= speed(i,j):
ok = 1
return ok
def judge2(i, j, k):
ok = 0
if A <= dist(i,j) + dist(i,k):
ok = 1
return ok
ans = 1
for bit in range(1 << n):
cnt = popcnt(bit)
if cnt <= 1: continue
for crr in range(n):
if not (bit >> crr) & 1:
continue
for pre1 in range(n):
if not (bit >> pre1) & 1:
continue
ok = judge1(crr, pre1, cnt)
for pre2 in range(n+1):
if ok:
dp[bit][crr][pre1] |= dp[bit - (1<<crr)][pre1][pre2]
ans = max(ans, cnt)
if not (bit >> pre2) & 1:
continue
if judge2(crr, pre1, pre2):
dp[bit][crr][pre1] |= dp[bit - (1<<crr)][pre1][pre2]
ans = max(ans, cnt)
print(ans)