結果
問題 | No.2791 Beginner Contest |
ユーザー | miho-4 |
提出日時 | 2024-06-21 22:23:14 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 246 ms / 2,000 ms |
コード長 | 4,431 bytes |
コンパイル時間 | 341 ms |
コンパイル使用メモリ | 82,252 KB |
実行使用メモリ | 81,972 KB |
最終ジャッジ日時 | 2024-06-21 22:23:18 |
合計ジャッジ時間 | 3,668 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 37 ms
54,472 KB |
testcase_01 | AC | 38 ms
53,688 KB |
testcase_02 | AC | 165 ms
78,788 KB |
testcase_03 | AC | 39 ms
55,232 KB |
testcase_04 | AC | 37 ms
53,972 KB |
testcase_05 | AC | 40 ms
55,452 KB |
testcase_06 | AC | 205 ms
79,896 KB |
testcase_07 | AC | 138 ms
78,648 KB |
testcase_08 | AC | 133 ms
78,584 KB |
testcase_09 | AC | 225 ms
81,544 KB |
testcase_10 | AC | 239 ms
81,972 KB |
testcase_11 | AC | 93 ms
80,272 KB |
testcase_12 | AC | 246 ms
81,644 KB |
testcase_13 | AC | 88 ms
80,292 KB |
testcase_14 | AC | 81 ms
77,440 KB |
testcase_15 | AC | 93 ms
80,408 KB |
testcase_16 | AC | 38 ms
56,256 KB |
testcase_17 | AC | 35 ms
54,192 KB |
testcase_18 | AC | 93 ms
80,336 KB |
testcase_19 | AC | 92 ms
80,336 KB |
ソースコード
class lazy_segtree(): def update(self,k):self.d[k]=self.op(self.d[2*k],self.d[2*k+1]) def all_apply(self,k,f): self.d[k]=self.mapping(f,self.d[k]) if (k<self.size):self.lz[k]=self.composition(f,self.lz[k]) def push(self,k): self.all_apply(2*k,self.lz[k]) self.all_apply(2*k+1,self.lz[k]) self.lz[k]=self.identity def __init__(self,V,OP,E,MAPPING,COMPOSITION,ID): self.n=len(V) self.log=(self.n-1).bit_length() self.size=1<<self.log self.d=[E for i in range(2*self.size)] self.lz=[ID for i in range(self.size)] self.e=E self.op=OP self.mapping=MAPPING self.composition=COMPOSITION self.identity=ID for i in range(self.n):self.d[self.size+i]=V[i] for i in range(self.size-1,0,-1):self.update(i) def set(self,p,x): assert 0<=p and p<self.n p+=self.size for i in range(self.log,0,-1):self.push(p>>i) self.d[p]=x for i in range(1,self.log+1):self.update(p>>i) def get(self,p): assert 0<=p and p<self.n p+=self.size for i in range(self.log,0,-1):self.push(p>>i) return self.d[p] def prod(self,l,r): assert 0<=l and l<=r and r<=self.n if l==r:return self.e l+=self.size r+=self.size for i in range(self.log,0,-1): if (((l>>i)<<i)!=l):self.push(l>>i) if (((r>>i)<<i)!=r):self.push(r>>i) sml,smr=self.e,self.e while(l<r): if l&1: sml=self.op(sml,self.d[l]) l+=1 if r&1: r-=1 smr=self.op(self.d[r],smr) l>>=1 r>>=1 return self.op(sml,smr) def all_prod(self):return self.d[1] def apply_point(self,p,f): assert 0<=p and p<self.n p+=self.size for i in range(self.log,0,-1):self.push(p>>i) self.d[p]=self.mapping(f,self.d[p]) for i in range(1,self.log+1):self.update(p>>i) def apply(self,l,r,f): assert 0<=l and l<=r and r<=self.n if l==r:return l+=self.size r+=self.size for i in range(self.log,0,-1): if (((l>>i)<<i)!=l):self.push(l>>i) if (((r>>i)<<i)!=r):self.push((r-1)>>i) l2,r2=l,r while(l<r): if (l&1): self.all_apply(l,f) l+=1 if (r&1): r-=1 self.all_apply(r,f) l>>=1 r>>=1 l,r=l2,r2 for i in range(1,self.log+1): if (((l>>i)<<i)!=l):self.update(l>>i) if (((r>>i)<<i)!=r):self.update((r-1)>>i) def max_right(self,l,g): assert 0<=l and l<=self.n assert g(self.e) if l==self.n:return self.n l+=self.size for i in range(self.log,0,-1):self.push(l>>i) sm=self.e while(1): while(l%2==0):l>>=1 if not(g(self.op(sm,self.d[l]))): while(l<self.size): self.push(l) l=(2*l) if (g(self.op(sm,self.d[l]))): sm=self.op(sm,self.d[l]) l+=1 return l-self.size sm=self.op(sm,self.d[l]) l+=1 if (l&-l)==l:break return self.n def min_left(self,r,g): assert (0<=r and r<=self.n) assert g(self.e) if r==0:return 0 r+=self.size for i in range(self.log,0,-1):self.push((r-1)>>i) sm=self.e while(1): r-=1 while(r>1 and (r%2)):r>>=1 if not(g(self.op(self.d[r],sm))): while(r<self.size): self.push(r) r=(2*r+1) if g(self.op(self.d[r],sm)): sm=self.op(self.d[r],sm) r-=1 return r+1-self.size sm=self.op(self.d[r],sm) if (r&-r)==r:break return 0 mod=998244353 n,k=map(int,input().split()) L=[0]*(n+1) L[0]=1 def operate(a,b): return (a+b)%mod def mapping(f,x): return f+x def composition(f,g): return f+g e=0 identity=0 seg=lazy_segtree(L,operate,e,mapping,composition,identity) for l in range(n): f=seg.get(l) f%=mod if l+k<=n: seg.apply(l+k,n+1,f) print(seg.all_prod()%mod)