結果
問題 | No.2133 Take it easy! |
ユーザー | mkawa2 |
提出日時 | 2022-11-29 23:06:28 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 79 ms / 2,000 ms |
コード長 | 1,748 bytes |
コンパイル時間 | 373 ms |
コンパイル使用メモリ | 82,508 KB |
実行使用メモリ | 85,504 KB |
最終ジャッジ日時 | 2024-10-07 08:54:29 |
合計ジャッジ時間 | 3,473 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 63 ms
77,184 KB |
testcase_01 | AC | 62 ms
77,312 KB |
testcase_02 | AC | 66 ms
79,104 KB |
testcase_03 | AC | 73 ms
84,928 KB |
testcase_04 | AC | 73 ms
83,584 KB |
testcase_05 | AC | 63 ms
77,184 KB |
testcase_06 | AC | 63 ms
77,312 KB |
testcase_07 | AC | 75 ms
83,712 KB |
testcase_08 | AC | 76 ms
84,992 KB |
testcase_09 | AC | 76 ms
84,992 KB |
testcase_10 | AC | 76 ms
84,480 KB |
testcase_11 | AC | 77 ms
83,328 KB |
testcase_12 | AC | 75 ms
83,328 KB |
testcase_13 | AC | 79 ms
84,992 KB |
testcase_14 | AC | 79 ms
85,120 KB |
testcase_15 | AC | 77 ms
84,352 KB |
testcase_16 | AC | 75 ms
82,048 KB |
testcase_17 | AC | 76 ms
83,216 KB |
testcase_18 | AC | 77 ms
84,480 KB |
testcase_19 | AC | 74 ms
83,200 KB |
testcase_20 | AC | 75 ms
82,944 KB |
testcase_21 | AC | 76 ms
84,864 KB |
testcase_22 | AC | 72 ms
82,688 KB |
testcase_23 | AC | 76 ms
85,504 KB |
testcase_24 | AC | 79 ms
85,248 KB |
testcase_25 | AC | 77 ms
84,736 KB |
testcase_26 | AC | 62 ms
77,312 KB |
testcase_27 | AC | 62 ms
76,928 KB |
testcase_28 | AC | 74 ms
84,864 KB |
ソースコード
import sys # sys.setrecursionlimit(200005) int1 = lambda x: int(x)-1 pDB = lambda *x: print(*x, end="\n", file=sys.stderr) p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr) def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def SI(): return sys.stdin.readline().rstrip() dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] inf = (1 << 63)-1 # inf = (1 << 31)-1 # md = 10**9+7 md = 998244353 def nHr(hn, hr): return nCr(hn+hr-1, hr-1) def nPr(com_n, com_r): if com_r < 0: return 0 if com_n < com_r: return 0 return fac[com_n]*ifac[com_n-com_r]%md def nCr(com_n, com_r): if com_r < 0: return 0 if com_n < com_r: return 0 return fac[com_n]*ifac[com_r]%md*ifac[com_n-com_r]%md n_max = 200005 fac = [1] for i in range(1, n_max+1): fac.append(fac[-1]*i%md) ifac = [1]*(n_max+1) ifac[n_max] = pow(fac[n_max], md-2, md) for i in range(n_max-1, 1, -1): ifac[i] = ifac[i+1]*(i+1)%md def cata(n): return (nCr(2*n, n)-nCr(2*n, n-1))%md from collections import Counter n, q = LI() ss = [0]*(n+1) for i in range(q): l, r = LI() l -= 1 ss[l] |= 1 << i ss[r] |= 1 << i for i in range(n): ss[i+1] ^= ss[i] sc = Counter(ss[:-1]) ans = 1 for s, c in sc.items(): if s == 0: continue if c & 1: print(0) exit() ans *= cata(c//2) ans %= md c = sc[0] ans *= nCr(c, c//2)-nCr(c, c//2-1) ans %= md ans *= fac[n//2]*fac[n-n//2]%md ans %= md print(ans)