結果
問題 | No.1621 Sequence Inversions |
ユーザー | kyaneko999 |
提出日時 | 2021-07-22 22:36:39 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,053 bytes |
コンパイル時間 | 171 ms |
コンパイル使用メモリ | 82,568 KB |
実行使用メモリ | 115,960 KB |
最終ジャッジ日時 | 2024-07-17 18:52:31 |
合計ジャッジ時間 | 8,400 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 57 ms
72,476 KB |
testcase_01 | AC | 55 ms
65,120 KB |
testcase_02 | AC | 76 ms
74,656 KB |
testcase_03 | AC | 57 ms
64,948 KB |
testcase_04 | AC | 60 ms
67,752 KB |
testcase_05 | AC | 57 ms
66,532 KB |
testcase_06 | AC | 72 ms
72,932 KB |
testcase_07 | AC | 113 ms
78,156 KB |
testcase_08 | AC | 2,994 ms
92,552 KB |
testcase_09 | TLE | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
ソースコード
from sys import exit, stdin, setrecursionlimit from collections import deque, defaultdict, Counter from copy import deepcopy from bisect import bisect_left, bisect_right, insort_left, insort_right from heapq import heapify, heappop, heappush from itertools import product, permutations, combinations, combinations_with_replacement from functools import reduce from math import gcd, sin, cos, tan, asin, acos, atan, atan2, degrees, radians, ceil, floor, sqrt, factorial from math import pi as PI from random import randint # from decimal import Decimal setrecursionlimit(500000) INF = (1<<61)-1 EPS = 1e-10 MOD = 10**9+7 MOD = 998244353 def input(): return stdin.readline().strip('\n') def intput(): return int(input()) def minput(): return input().split() def linput(): return input().split() def mint(): return map(int,input().split()) def lint(): return list(map(int,input().split())) def ilint(): return intput(),lint() def lcm(x,y): return x*y//gcd(x,y) def lgcd(l): return reduce(gcd,l) def llcm(l): return reduce(lcm,l) def powmod(n,i,mod=MOD): return pow(n,mod-1+i,mod) if i<0 else pow(n,i,mod) def div2(x): return x.bit_length() def div10(x): return len(str(x))-(x==0) def popcount(x): return bin(x).count('1') def digit(x,i,max_len=None): s = str(x) if max_len: i -= max_len-len(s) return int(s[i-1]) if i>0 else 0 def digitsum(x): ans = 0 for i in range(div10(x)): ans += digit(x,i+1) return ans def pf(x,mode='counter'): C = Counter() p = 2 while x>1: k = 0 while x%p==0: x //= p k += 1 if k>0: C[p] += k p = p+2-(p==2) if p*p<x else x if mode=='counter': return C S = set([1]) for k in C: T = set() for x in S: for i in range(C[k]+1): T.add(x*(k**i)) S = T if mode=='set': return S if mode=='list': return sorted(S) def isprime(x): if x<2: return False return len(pf(x,'set'))==2 def matmul(A, B): # import numpy A1, A2 = A >> 15, A & (1 << 15) - 1 B1, B2 = B >> 15, B & (1 << 15) - 1 X = np.dot(A1, B1) % MOD Y = np.dot(A2, B2) Z = np.dot(A1 + A2, B1 + B2) - X - Y return ((X << 30) + (Z << 15) + Y) % MOD def matpow(A, N): P = np.eye(A.shape[0], dtype=np.int64) while N: if N & 1: P = matmul(P, A) A = matmul(A, A) N >>= 1 return P def zash(S): lis = sorted(S) dic = {} for i,x in enumerate(lis): dic[x] = i return lis, dic def pr(*x): print(*x, sep='', end='') if len(x) else print() def lprint(l): for x in l: print(x) def ston(c, c0='a'): return ord(c)-ord(c0) def ntos(x, c0='a'): return chr(x+ord(c0)) def judge(x, l=['Yes', 'No']): print(l[0] if x else l[1]) def debug(*x, flag=0): if flag: print(*x) ###################################################### N,K=mint() M=N*(N-1)//2 A=lint() C=Counter(A) dp=[0]*(M+1) dp[0]=1 cnt=0 for key in sorted(C.keys()): v=C[key] Mp=cnt*v dpp=[[0]*(Mp+1) for k in range(v+1)] for k in range(v+1): dpp[k][0]=1 for c in range(1,cnt+1): nxt=[[0]*(Mp+1) for k in range(v+1)] debug(key,c,dpp) for k in range(Mp//c+1): for cc in range(Mp-c*k+1): for kk in range(v-k+1): debug(kk,k,cc,c) nxt[kk+k][cc+c*k]+=dpp[kk][cc] nxt[kk+k][cc+c*k]%=MOD dpp=nxt # for _ in range(v): # nxt=[0]*(Mp+1) # su=0 # for x in range(Mp+1): # if x>cnt: # su-=dpp[x-cnt] # su+=dpp[x] # su%=MOD # nxt[x]=su # dpp=nxt nxt=[0]*(M+1) for c in range(Mp+1): for k in range(M-c+1): nxt[k+c]+=dp[k]*dpp[v][c] nxt[k+c]%=MOD dp=nxt cnt+=v #debug(dp) # C=Counter(A) # for v in C.values(): # K+=v*(v-1)//2 print(dp[K])