結果
| 問題 | No.1515 Making Many Multiples |
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-03-31 17:40:44 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,397 bytes |
| コンパイル時間 | 147 ms |
| コンパイル使用メモリ | 82,236 KB |
| 実行使用メモリ | 72,192 KB |
| 最終ジャッジ日時 | 2025-03-31 17:42:10 |
| 合計ジャッジ時間 | 4,251 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | -- * 3 |
| other | AC * 2 TLE * 1 -- * 25 |
ソースコード
n, k, x, y = map(int, input().split())
a_list = list(map(int, input().split()))
x_mod = x % k
y_mod = y % k
initial_pair = tuple(sorted((x_mod, y_mod)))
current_dp = {initial_pair: 0}
a_mod = [a % k for a in a_list]
for c in a_mod:
next_dp = {}
for (a_prev, b_prev), score in current_dp.items():
sum_ab = (a_prev + b_prev) % k
current_point = 1 if (sum_ab + c) % k == 0 else 0
new_score = score + current_point
# Discard a_prev: new pair is (b_prev, c)
new_pair = tuple(sorted((b_prev, c)))
if new_pair in next_dp:
if next_dp[new_pair] < new_score:
next_dp[new_pair] = new_score
else:
next_dp[new_pair] = new_score
# Discard b_prev: new pair is (a_prev, c)
new_pair = tuple(sorted((a_prev, c)))
if new_pair in next_dp:
if next_dp[new_pair] < new_score:
next_dp[new_pair] = new_score
else:
next_dp[new_pair] = new_score
# Discard c: keep the previous pair (a_prev, b_prev)
new_pair = (a_prev, b_prev)
if new_pair in next_dp:
if next_dp[new_pair] < new_score:
next_dp[new_pair] = new_score
else:
next_dp[new_pair] = new_score
current_dp = next_dp
if current_dp:
print(max(current_dp.values()))
else:
print(0)
lam6er