結果
問題 | No.1928 Make a Binary Tree |
ユーザー | harurun |
提出日時 | 2021-12-15 11:59:09 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 1,774 ms / 3,000 ms |
コード長 | 3,386 bytes |
コンパイル時間 | 245 ms |
コンパイル使用メモリ | 82,784 KB |
実行使用メモリ | 139,076 KB |
最終ジャッジ日時 | 2024-11-06 04:25:05 |
合計ジャッジ時間 | 56,222 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 44 ms
56,544 KB |
testcase_01 | AC | 41 ms
56,280 KB |
testcase_02 | AC | 43 ms
56,512 KB |
testcase_03 | AC | 41 ms
57,276 KB |
testcase_04 | AC | 41 ms
57,340 KB |
testcase_05 | AC | 42 ms
56,248 KB |
testcase_06 | AC | 43 ms
57,200 KB |
testcase_07 | AC | 43 ms
57,728 KB |
testcase_08 | AC | 51 ms
64,072 KB |
testcase_09 | AC | 49 ms
64,684 KB |
testcase_10 | AC | 43 ms
56,920 KB |
testcase_11 | AC | 41 ms
56,648 KB |
testcase_12 | AC | 42 ms
56,468 KB |
testcase_13 | AC | 44 ms
58,348 KB |
testcase_14 | AC | 43 ms
58,140 KB |
testcase_15 | AC | 278 ms
83,824 KB |
testcase_16 | AC | 238 ms
83,348 KB |
testcase_17 | AC | 207 ms
82,528 KB |
testcase_18 | AC | 275 ms
84,620 KB |
testcase_19 | AC | 126 ms
81,012 KB |
testcase_20 | AC | 237 ms
82,804 KB |
testcase_21 | AC | 168 ms
81,044 KB |
testcase_22 | AC | 224 ms
83,168 KB |
testcase_23 | AC | 211 ms
82,492 KB |
testcase_24 | AC | 255 ms
83,816 KB |
testcase_25 | AC | 274 ms
84,032 KB |
testcase_26 | AC | 1,502 ms
126,488 KB |
testcase_27 | AC | 984 ms
108,668 KB |
testcase_28 | AC | 1,114 ms
112,192 KB |
testcase_29 | AC | 1,704 ms
131,132 KB |
testcase_30 | AC | 924 ms
107,628 KB |
testcase_31 | AC | 1,277 ms
117,504 KB |
testcase_32 | AC | 1,660 ms
129,580 KB |
testcase_33 | AC | 1,008 ms
108,580 KB |
testcase_34 | AC | 1,204 ms
116,564 KB |
testcase_35 | AC | 1,532 ms
129,704 KB |
testcase_36 | AC | 1,451 ms
139,076 KB |
testcase_37 | AC | 1,171 ms
128,720 KB |
testcase_38 | AC | 43 ms
56,152 KB |
testcase_39 | AC | 1,744 ms
133,464 KB |
testcase_40 | AC | 1,719 ms
133,460 KB |
testcase_41 | AC | 1,774 ms
133,244 KB |
testcase_42 | AC | 1,716 ms
132,588 KB |
testcase_43 | AC | 1,700 ms
132,160 KB |
testcase_44 | AC | 1,731 ms
132,220 KB |
testcase_45 | AC | 1,718 ms
132,764 KB |
testcase_46 | AC | 1,722 ms
133,020 KB |
testcase_47 | AC | 1,742 ms
133,344 KB |
testcase_48 | AC | 1,732 ms
132,456 KB |
testcase_49 | AC | 1,430 ms
128,220 KB |
testcase_50 | AC | 1,687 ms
129,216 KB |
testcase_51 | AC | 1,699 ms
129,076 KB |
testcase_52 | AC | 1,696 ms
128,948 KB |
testcase_53 | AC | 1,672 ms
129,068 KB |
testcase_54 | AC | 1,710 ms
128,940 KB |
testcase_55 | AC | 1,350 ms
128,028 KB |
testcase_56 | AC | 1,693 ms
131,672 KB |
testcase_57 | AC | 1,725 ms
131,616 KB |
testcase_58 | AC | 1,768 ms
131,452 KB |
testcase_59 | AC | 1,065 ms
133,340 KB |
ソースコード
class Stack: def __init__(self,max_size=400010): self._stack=[-1]*max_size self._size=0 return def push(self,x): self._stack[self._size]=x self._size+=1 return def pop(self): self._size-=1 return self._stack[self._size] def empty(self): return self._size==0 class SegTree: def __init__(self,op,e,v): self._op=op self._e=e if isinstance(v,int): v=[e]*v self._n=len(v) self._log=self.ceil2() self._size=1<<self._log self._d=[e]*(2*self._size) 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) return def ceil2(self): x=0 while (1<<x)<self._n: x+=1 return x def set(self,p,x): p+=self._size self._d[p]=x for i in range(1,self._log+1): self._update(p>>i) return def get(self,p): return self._d[p+self._size] def prod(self,left,right): sml=self._e smr=self._e left+=self._size right+=self._size while left<right: if left&1: sml=self._op(sml,self._d[left]) left+=1 if right&1: right-=1 smr=self._op(self._d[right],smr) left>>=1 right>>=1 return self._op(sml,smr) def all_prod(self): return self._d[1] def max_right(self,left,target): self.target=target if left==self._n: return self._n left+=self._size sm=self._e first=True while first or (left & -left)!=left: first=False while left%2==0: left>>=1 if not self._f(self._op(sm,self._d[left])): while left<self._size: left*=2 if self._f(self._op(sm,self._d[left])): sm=self._op(sm,self._d[left]) left+=1 return left-self._size sm=self._op(sm,self._d[left]) left+=1 return self._n def min_left(self,right,target): self.target=target if right==0: return 0 right+=self._size sm=self._e first=True while first or (right&-right)!=right: first=False right-=1 while right>1 and right%2: right>>=1 if not self._f(self._op(self._d[right],sm)): while right<self._size: right=2*right+1 if self._f(self._op(self._d[right],sm)): sm=self._op(self._d[right],sm) right-=1 return right+1-self._size sm=self._op(self._d[right],sm) return 0 def _update(self,k): self._d[k]=self._op(self._d[2*k],self._d[2*k+1]) return def _f(self,u): return u<self.target def main(): N=int(input()) Graph=[[]for i in range(N)] for i in range(N-1): x,y=map(int,input().split()) Graph[x-1].append(y-1) Graph[y-1].append(x-1) seg=SegTree(max,[-1,-1],N) st=Stack() st.push(N) st.push(0) checked=[False]*N pre=[0]*N cnt=[1]*N searched=0 while not st.empty(): q=st.pop() if q<N: pre[q]=searched checked[q]=True for to in Graph[q]: if not checked[to]: st.push(to+N) st.push(to) else: for j in range(2): tmp=seg.prod(pre[q-N],searched) if tmp[0]==-1: break cnt[q-N]+=tmp[0] seg.set(tmp[1],[-1,-1]) seg.set(searched,[cnt[q-N],searched]) searched+=1 print(cnt[0]) return main()