結果
問題 | No.1720 Division Permutation |
ユーザー |
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提出日時 | 2025-06-12 18:13:29 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 1,211 bytes |
コンパイル時間 | 272 ms |
コンパイル使用メモリ | 82,380 KB |
実行使用メモリ | 55,920 KB |
最終ジャッジ日時 | 2025-06-12 18:14:50 |
合計ジャッジ時間 | 7,906 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 10 TLE * 1 -- * 49 |
ソースコード
MOD = 998244353 n, k = map(int, input().split()) p = list(map(int, input().split())) dp = [[0] * (k + 1) for _ in range(n + 1)] dp[0][0] = 1 from collections import deque for i in range(1, n + 1): min_deque = deque() max_deque = deque() # j ranges from i-1 down to 0 (window [j..i-1] in 0-based) # we need to check window [j..i-1] (converted to 1-based [j+1..i]) for j in range(i - 1, -1, -1): current = p[j] # Maintain min_deque and max_deque for the current window [j..i-1] while min_deque and p[min_deque[-1]] >= current: min_deque.pop() min_deque.append(j) while max_deque and p[max_deque[-1]] <= current: max_deque.pop() max_deque.append(j) # Compute current min and max current_min = p[min_deque[0]] current_max = p[max_deque[0]] window_length = i - j if current_max - current_min + 1 == window_length: # This window [j..i-1] (0-based) corresponds to [j+1..i] in 1-based for x in range(1, k + 1): dp[i][x] = (dp[i][x] + dp[j][x - 1]) % MOD ans = [dp[n][x] % MOD for x in range(1, k + 1)] print('\n'.join(map(str, ans)))