結果
| 問題 |
No.3024 全単射的
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 16:11:47 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,044 bytes |
| コンパイル時間 | 337 ms |
| コンパイル使用メモリ | 82,648 KB |
| 実行使用メモリ | 57,868 KB |
| 最終ジャッジ日時 | 2025-06-12 16:11:56 |
| 合計ジャッジ時間 | 7,941 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 10 TLE * 1 -- * 11 |
ソースコード
from functools import lru_cache
def main():
import sys
input = sys.stdin.read().split()
N = int(input[0])
A = list(map(int, input[1:N+1]))
def compute_possible_results(numbers):
@lru_cache(maxsize=None)
def helper(nums_tuple):
if len(nums_tuple) == 1:
return {nums_tuple[0]}
results = set()
nums = list(nums_tuple)
n = len(nums)
for i in range(n):
for j in range(n):
if i == j:
continue
a = nums[i]
b = nums[j]
remaining = tuple(sorted([nums[k] for k in range(n) if k != i and k != j] + [a + b]))
results.update(helper(remaining))
remaining = tuple(sorted([nums[k] for k in range(n) if k != i and k != j] + [a - b]))
results.update(helper(remaining))
remaining = tuple(sorted([nums[k] for k in range(n) if k != i and k != j] + [a * b]))
results.update(helper(remaining))
if b != 0 and a % b == 0:
div = a // b
remaining = tuple(sorted([nums[k] for k in range(n) if k != i and k != j] + [div]))
results.update(helper(remaining))
return results
sorted_numbers = tuple(sorted(numbers))
return helper(sorted_numbers)
found = False
for mask in range(1, (1 << N) - 1):
group_a = []
group_b = []
for i in range(N):
if (mask >> i) & 1:
group_a.append(A[i])
else:
group_b.append(A[i])
if not group_a or not group_b:
continue
res_a = compute_possible_results(group_a)
res_b = compute_possible_results(group_b)
if res_a & res_b:
found = True
break
print("YES" if found else "NO")
if __name__ == "__main__":
main()
gew1fw