結果
問題 | No.1191 数え上げを愛したい(数列編) |
ユーザー | Keroru |
提出日時 | 2020-08-25 12:59:03 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,940 bytes |
コンパイル時間 | 475 ms |
コンパイル使用メモリ | 82,232 KB |
実行使用メモリ | 110,596 KB |
最終ジャッジ日時 | 2024-11-06 11:14:46 |
合計ジャッジ時間 | 7,353 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | AC | 220 ms
108,696 KB |
testcase_16 | AC | 212 ms
108,708 KB |
testcase_17 | AC | 216 ms
108,600 KB |
testcase_18 | AC | 215 ms
108,664 KB |
testcase_19 | AC | 216 ms
108,632 KB |
testcase_20 | AC | 213 ms
108,456 KB |
testcase_21 | AC | 216 ms
108,400 KB |
testcase_22 | WA | - |
testcase_23 | AC | 213 ms
108,656 KB |
testcase_24 | AC | 215 ms
108,732 KB |
testcase_25 | AC | 216 ms
108,748 KB |
ソースコード
import sys,bisect,string,math,time,functools,random,fractions from heapq import heappush,heappop,heapify from collections import deque,defaultdict,Counter from itertools import permutations,combinations,groupby rep=range;R=range def Golf():n,*t=map(int,open(0).read().split()) def I():return int(input()) def S_():return input() def IS():return input().split() def LS():return [i for i in input().split()] def MI():return map(int,input().split()) def LI():return [int(i) for i in input().split()] def LI_():return [int(i)-1 for i in input().split()] def NI(n):return [int(input()) for i in range(n)] def NI_(n):return [int(input())-1 for i in range(n)] def StoLI():return [ord(i)-97 for i in input()] def ItoS(n):return chr(n+97) def LtoS(ls):return ''.join([chr(i+97) for i in ls]) def RA():return map(int,open(0).read().split()) def RLI(n=8,a=1,b=10):return [random.randint(a,b)for i in range(n)] def RI(a=1,b=10):return random.randint(a,b) def Rtest(T): case,err=0,0 for i in range(T): inp=INP() a1,ls=naive(*inp) a2=solve(*inp) if a1!=a2: print((a1,a2),inp) err+=1 case+=1 print('Tested',case,'case with',err,'errors') def GI(V,E,ls=None,Directed=False,index=1): org_inp=[];g=[[] for i in range(V)] FromStdin=True if ls==None else False for i in range(E): if FromStdin: inp=LI() org_inp.append(inp) else: inp=ls[i] if len(inp)==2: a,b=inp;c=1 else: a,b,c=inp if index==1:a-=1;b-=1 aa=(a,c);bb=(b,c);g[a].append(bb) if not Directed:g[b].append(aa) return g,org_inp def GGI(h,w,search=None,replacement_of_found='.',mp_def={'#':1,'.':0},boundary=1): #h,w,g,sg=GGI(h,w,search=['S','G'],replacement_of_found='.',mp_def={'#':1,'.':0},boundary=1) # sample usage mp=[boundary]*(w+2);found={} for i in R(h): s=input() for char in search: if char in s: found[char]=((i+1)*(w+2)+s.index(char)+1) mp_def[char]=mp_def[replacement_of_found] mp+=[boundary]+[mp_def[j] for j in s]+[boundary] mp+=[boundary]*(w+2) return h+2,w+2,mp,found def TI(n):return GI(n,n-1) def accum(ls): rt=[0] for i in ls:rt+=[rt[-1]+i] return rt def bit_combination(n,base=2): rt=[] for tb in R(base**n):s=[tb//(base**bt)%base for bt in R(n)];rt+=[s] return rt def gcd(x,y): if y==0:return x if x%y==0:return y while x%y!=0:x,y=y,x%y return y def YN(x):print(['NO','YES'][x]) def Yn(x):print(['No','Yes'][x]) def show(*inp,end='\n'): if show_flg:print(*inp,end=end) mo=10**9+7 inf=float('inf') FourNb=[(-1,0),(1,0),(0,1),(0,-1)];EightNb=[(-1,0),(1,0),(0,1),(0,-1),(1,1),(-1,-1),(1,-1),(-1,1)];compas=dict(zip('WENS',FourNb));cursol=dict(zip('LRUD',FourNb)) l_alp=string.ascii_lowercase #sys.setrecursionlimit(10**9) read=sys.stdin.buffer.read;readline=sys.stdin.buffer.readline;input=lambda:sys.stdin.readline().rstrip() class Comb: def __init__(self,n,mo=10**9+7): self.fac=[0]*(n+1) self.inv=[1]*(n+1) self.fac[0]=1 self.fact(n) self.mo=mo for i in range(1,n+1): self.fac[i]=i*self.fac[i-1]%mo self.inv[n]*=i self.inv[n]%=mo self.inv[n]=pow(self.inv[n],mo-2,mo) for i in range(1,n): self.inv[n-i]=self.inv[n-i+1]*(n-i+1)%mo return def fact(self,n): return self.fac[n] def invf(self,n): return self.inv[n] def comb(self,x,y): if y<0 or y>x: return 0 return self.fac[x]*self.inv[x-y]*self.inv[y]%self.mo show_flg=False show_flg=True ans=0 n,m,a,b=LI() cm=Comb(10**6,mo=998244353) if b<a*(n-1): print(0) exit() for k in range(m): N=min(b-k,m-1-k) - a*(n-1) if N>=0: ans+=cm.comb(N+n,n) print(ans*cm.fac[n]%cm.mo)