結果
問題 |
No.2423 Merge Stones
|
ユーザー |
![]() |
提出日時 | 2025-04-15 22:04:42 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,088 bytes |
コンパイル時間 | 201 ms |
コンパイル使用メモリ | 81,696 KB |
実行使用メモリ | 87,372 KB |
最終ジャッジ日時 | 2025-04-15 22:06:36 |
合計ジャッジ時間 | 6,448 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 * 1 |
other | AC * 10 TLE * 1 -- * 61 |
ソースコード
def main(): import sys input = sys.stdin.read().split() idx = 0 N = int(input[idx]) idx += 1 K = int(input[idx]) idx += 1 A = list(map(int, input[idx:idx+N])) idx += N C = list(map(int, input[idx:idx+N])) # Duplicate the array to handle circularity A += A C += C # Precompute allowed masks for each color (1-based) max_color = 50 allowed_masks = [0] * (max_color + 2) # 0..50 for c in range(1, max_color + 1): lower = max(1, c - K) upper = min(max_color, c + K) mask = 0 for d in range(lower, upper + 1): mask |= 1 << d allowed_masks[c] = mask # Precompute prefix sums prefix = [0] * (2 * N + 1) for i in range(2 * N): prefix[i + 1] = prefix[i] + A[i] # Initialize DP table dp = [[0] * (2 * N) for _ in range(2 * N)] for i in range(2 * N): c = C[i] dp[i][i] = 1 << c # Fill DP table for l in range(2, N + 1): for i in range(2 * N - l + 1): j = i + l - 1 current_mask = 0 for k in range(i, j): left = dp[i][k] right = dp[k + 1][j] if left == 0 or right == 0: continue # Iterate over all possible colors in left c1 = 1 while c1 <= max_color: if (left & (1 << c1)) == 0: c1 += 1 continue allowed = allowed_masks[c1] overlap = right & allowed if overlap != 0: current_mask |= (1 << c1) | overlap c1 += 1 dp[i][j] = current_mask # Find the maximum sum max_sum = 0 for i in range(2 * N): for j in range(i, min(i + N, 2 * N)): if dp[i][j] != 0: s = prefix[j + 1] - prefix[i] if s > max_sum: max_sum = s print(max_sum) if __name__ == '__main__': main()