結果
| 問題 |
No.2364 Knapsack Problem
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-06-30 22:20:47 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,951 bytes |
| コンパイル時間 | 237 ms |
| コンパイル使用メモリ | 82,284 KB |
| 実行使用メモリ | 87,824 KB |
| 最終ジャッジ日時 | 2024-07-07 10:11:28 |
| 合計ジャッジ時間 | 19,588 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 15 WA * 1 TLE * 1 -- * 3 |
ソースコード
import sys, time, random
from collections import deque, Counter, defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
import time
t1 = time.time()
n, m, w = mi()
a = li()
b = li()
c = [v for v in li()]
d = [v for v in li()]
ans = 0
import itertools
WV = []
for x, y in zip(a, b):
WV.append((x, y))
for x, y in zip(c, d):
WV.append((-x, -y))
def solve(WV, w):
n = len(WV)
dp = [[-inf] * (w + 1) for _ in range(n + 1)]
dp[0][0] = 0
for i in range(n):
x, y = WV[i]
for j in range(w + 1):
if 0 <= j + x <= w:
dp[i + 1][j + x] = max(dp[i + 1][j + x], dp[i][j] + y)
dp[i + 1][j] = max(dp[i][j], dp[i + 1][j])
return max(dp[n])
ans = 0
while time.time() - t1 <= 0.7:
random.shuffle(WV)
ans = max(ans, solve(WV, w))
for bit1 in range(1 << n):
for bit2 in range(1 << m):
WV = []
p = 0
for i in range(n):
if 1 & (bit1 >> i):
WV.append((a[i], b[i]))
p += b[i]
if ans >= p:
break
WIS = []
for i in range(m):
if 1 & (bit2 >> i):
WIS.append((c[i], d[i]))
p -= d[i]
if ans >= p:
break
for WV in itertools.permutations(WV):
for WIS in itertools.permutations(WIS):
j = 0
noww = 0
nowv = 0
for x, y in WV:
noww += x
nowv += y
if noww > w:
nowv = -inf
break
if j < len(WIS) and WIS[j][0] <= noww:
noww -= WIS[j][0]
nowv -= WIS[j][1]
j += 1
ans = max(ans, nowv)
print(ans)