結果
問題 | No.2763 Macaron Gift Box |
ユーザー | magurofly |
提出日時 | 2024-05-10 14:23:31 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 1,884 ms / 3,000 ms |
コード長 | 7,241 bytes |
コンパイル時間 | 159 ms |
コンパイル使用メモリ | 82,440 KB |
実行使用メモリ | 165,264 KB |
最終ジャッジ日時 | 2024-05-10 14:23:45 |
合計ジャッジ時間 | 12,321 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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 | 35 ms
54,600 KB |
testcase_01 | AC | 36 ms
55,644 KB |
testcase_02 | AC | 35 ms
55,552 KB |
testcase_03 | AC | 35 ms
54,596 KB |
testcase_04 | AC | 36 ms
56,232 KB |
testcase_05 | AC | 35 ms
54,652 KB |
testcase_06 | AC | 36 ms
54,696 KB |
testcase_07 | AC | 955 ms
115,832 KB |
testcase_08 | AC | 289 ms
84,276 KB |
testcase_09 | AC | 528 ms
96,108 KB |
testcase_10 | AC | 1,861 ms
161,180 KB |
testcase_11 | AC | 1,864 ms
161,664 KB |
testcase_12 | AC | 1,849 ms
164,696 KB |
testcase_13 | AC | 1,884 ms
165,264 KB |
testcase_14 | AC | 278 ms
84,532 KB |
testcase_15 | AC | 274 ms
84,540 KB |
testcase_16 | AC | 298 ms
84,272 KB |
ソースコード
import math MOD = 998244353 # https://github.com/shakayami/ACL-for-python # https://github.com/shakayami/ACL-for-python/blob/master/convolution.py class FFT(): def primitive_root_constexpr(self,m): if m==2:return 1 if m==167772161:return 3 if m==469762049:return 3 if m==754974721:return 11 if m==998244353:return 3 divs=[0]*20 divs[0]=2 cnt=1 x=(m-1)//2 while(x%2==0):x//=2 i=3 while(i*i<=x): if (x%i==0): divs[cnt]=i cnt+=1 while(x%i==0): x//=i i+=2 if x>1: divs[cnt]=x cnt+=1 g=2 while(1): ok=True for i in range(cnt): if pow(g,(m-1)//divs[i],m)==1: ok=False break if ok: return g g+=1 def bsf(self,x): res=0 while(x%2==0): res+=1 x//=2 return res rank2=0 root=[] iroot=[] rate2=[] irate2=[] rate3=[] irate3=[] def __init__(self,MOD): self.mod=MOD self.g=self.primitive_root_constexpr(self.mod) self.rank2=self.bsf(self.mod-1) self.root=[0 for i in range(self.rank2+1)] self.iroot=[0 for i in range(self.rank2+1)] self.rate2=[0 for i in range(self.rank2)] self.irate2=[0 for i in range(self.rank2)] self.rate3=[0 for i in range(self.rank2-1)] self.irate3=[0 for i in range(self.rank2-1)] self.root[self.rank2]=pow(self.g,(self.mod-1)>>self.rank2,self.mod) self.iroot[self.rank2]=pow(self.root[self.rank2],self.mod-2,self.mod) for i in range(self.rank2-1,-1,-1): self.root[i]=(self.root[i+1]**2)%self.mod self.iroot[i]=(self.iroot[i+1]**2)%self.mod prod=1;iprod=1 for i in range(self.rank2-1): self.rate2[i]=(self.root[i+2]*prod)%self.mod self.irate2[i]=(self.iroot[i+2]*iprod)%self.mod prod=(prod*self.iroot[i+2])%self.mod iprod=(iprod*self.root[i+2])%self.mod prod=1;iprod=1 for i in range(self.rank2-2): self.rate3[i]=(self.root[i+3]*prod)%self.mod self.irate3[i]=(self.iroot[i+3]*iprod)%self.mod prod=(prod*self.iroot[i+3])%self.mod iprod=(iprod*self.root[i+3])%self.mod def butterfly(self,a): n=len(a) h=(n-1).bit_length() LEN=0 while(LEN<h): if (h-LEN==1): p=1<<(h-LEN-1) rot=1 for s in range(1<<LEN): offset=s<<(h-LEN) for i in range(p): l=a[i+offset] r=a[i+offset+p]*rot a[i+offset]=(l+r)%self.mod a[i+offset+p]=(l-r)%self.mod rot*=self.rate2[(~s & -~s).bit_length()-1] rot%=self.mod LEN+=1 else: p=1<<(h-LEN-2) rot=1 imag=self.root[2] for s in range(1<<LEN): rot2=(rot*rot)%self.mod rot3=(rot2*rot)%self.mod offset=s<<(h-LEN) for i in range(p): a0=a[i+offset] a1=a[i+offset+p]*rot a2=a[i+offset+2*p]*rot2 a3=a[i+offset+3*p]*rot3 a1na3imag=(a1-a3)%self.mod*imag a[i+offset]=(a0+a2+a1+a3)%self.mod a[i+offset+p]=(a0+a2-a1-a3)%self.mod a[i+offset+2*p]=(a0-a2+a1na3imag)%self.mod a[i+offset+3*p]=(a0-a2-a1na3imag)%self.mod rot*=self.rate3[(~s & -~s).bit_length()-1] rot%=self.mod LEN+=2 def butterfly_inv(self,a): n=len(a) h=(n-1).bit_length() LEN=h while(LEN): if (LEN==1): p=1<<(h-LEN) irot=1 for s in range(1<<(LEN-1)): offset=s<<(h-LEN+1) for i in range(p): l=a[i+offset] r=a[i+offset+p] a[i+offset]=(l+r)%self.mod a[i+offset+p]=(l-r)*irot%self.mod irot*=self.irate2[(~s & -~s).bit_length()-1] irot%=self.mod LEN-=1 else: p=1<<(h-LEN) irot=1 iimag=self.iroot[2] for s in range(1<<(LEN-2)): irot2=(irot*irot)%self.mod irot3=(irot*irot2)%self.mod offset=s<<(h-LEN+2) for i in range(p): a0=a[i+offset] a1=a[i+offset+p] a2=a[i+offset+2*p] a3=a[i+offset+3*p] a2na3iimag=(a2-a3)*iimag%self.mod a[i+offset]=(a0+a1+a2+a3)%self.mod a[i+offset+p]=(a0-a1+a2na3iimag)*irot%self.mod a[i+offset+2*p]=(a0+a1-a2-a3)*irot2%self.mod a[i+offset+3*p]=(a0-a1-a2na3iimag)*irot3%self.mod irot*=self.irate3[(~s & -~s).bit_length()-1] irot%=self.mod LEN-=2 def convolution(self,a,b,k=None): n=len(a);m=len(b) if not k: k=n+m-1 if not(a) or not(b): return [] if k<=50: res=[0]*k for i in range(n): for j in range(min(m, k-i)): res[i+j]+=a[i]*b[j] res[i+j]%=self.mod return res z=1<<((k+1).bit_length()) a=a+[0]*(z-n) b=b+[0]*(z-m) self.butterfly(a) self.butterfly(b) c=[(a[i]*b[i])%self.mod for i in range(z)] self.butterfly_inv(c) iz=pow(z,self.mod-2,self.mod) for i in range(k): c[i]=(c[i]*iz)%self.mod return c[:k] def fps_inverse(fft, f, k=None): assert f[0] != 0 if not k: k=len(f) g = [pow(f[0], fft.mod-2, fft.mod)] while len(g) < k: n2 = min(len(g) * 2, k) h = fft.convolution(g, g) h = fft.convolution(f[:n2], h)[:n2] g2 = [0] * n2 for i in range(len(g)): g2[i] = 2 * g[i] % fft.mod for i in range(n2): g2[i] = (g2[i] - h[i]) % fft.mod g = g2 return g[:k] N, K = map(int, input().split()) fft = FFT(998244353) # 分母 f = [0] * (N + 1) d = math.sqrt(1 + 24 * N) low = math.ceil((1 - d) / 6) high = math.floor((1 + d) / 6) for i in range(low, high + 1): f[i * (3 * i - 1) >> 1] += (1 if i % 2 == 0 else -1) # 分子 g = [0] * (N + 1) for i in range(0, N // (K + 1) + 1): g[i * (K + 1)] = f[i] # 逆数にする f = fps_inverse(fft, f) # かける ans = fft.convolution(g, f)[:N + 1] print(" ".join(str(ans[i] % MOD) for i in range(1, N + 1)))