結果

問題 No.1473 おでぶなおばけさん
ユーザー harurunharurun
提出日時 2021-04-10 00:23:56
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
AC  
実行時間 1,342 ms / 2,000 ms
コード長 3,317 bytes
コンパイル時間 316 ms
コンパイル使用メモリ 11,504 KB
実行使用メモリ 67,356 KB
最終ジャッジ日時 2023-09-07 19:23:26
合計ジャッジ時間 30,963 ms
ジャッジサーバーID
(参考情報)
judge11 / judge13
このコードへのチャレンジ
(要ログイン)

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 50 ms
16,224 KB
testcase_01 AC 48 ms
16,264 KB
testcase_02 AC 1,146 ms
62,972 KB
testcase_03 AC 627 ms
55,048 KB
testcase_04 AC 525 ms
42,368 KB
testcase_05 AC 164 ms
26,160 KB
testcase_06 AC 721 ms
57,760 KB
testcase_07 AC 1,240 ms
66,660 KB
testcase_08 AC 1,342 ms
67,356 KB
testcase_09 AC 1,201 ms
66,104 KB
testcase_10 AC 315 ms
47,332 KB
testcase_11 AC 310 ms
45,988 KB
testcase_12 AC 298 ms
47,936 KB
testcase_13 AC 182 ms
32,536 KB
testcase_14 AC 147 ms
28,232 KB
testcase_15 AC 258 ms
39,732 KB
testcase_16 AC 295 ms
46,592 KB
testcase_17 AC 64 ms
18,504 KB
testcase_18 AC 71 ms
20,116 KB
testcase_19 AC 323 ms
43,580 KB
testcase_20 AC 637 ms
50,564 KB
testcase_21 AC 497 ms
54,096 KB
testcase_22 AC 1,009 ms
58,176 KB
testcase_23 AC 742 ms
50,568 KB
testcase_24 AC 735 ms
51,276 KB
testcase_25 AC 1,052 ms
60,196 KB
testcase_26 AC 1,012 ms
63,168 KB
testcase_27 AC 281 ms
36,744 KB
testcase_28 AC 1,113 ms
64,712 KB
testcase_29 AC 386 ms
49,956 KB
testcase_30 AC 448 ms
55,536 KB
testcase_31 AC 1,164 ms
64,132 KB
testcase_32 AC 567 ms
57,548 KB
testcase_33 AC 580 ms
50,328 KB
testcase_34 AC 336 ms
35,020 KB
testcase_35 AC 258 ms
37,120 KB
testcase_36 AC 634 ms
53,552 KB
testcase_37 AC 780 ms
50,812 KB
testcase_38 AC 132 ms
25,156 KB
testcase_39 AC 307 ms
47,176 KB
testcase_40 AC 290 ms
47,128 KB
testcase_41 AC 241 ms
32,136 KB
testcase_42 AC 249 ms
32,244 KB
testcase_43 AC 520 ms
53,728 KB
testcase_44 AC 540 ms
53,620 KB
testcase_45 AC 529 ms
53,724 KB
testcase_46 AC 801 ms
54,720 KB
testcase_47 AC 1,052 ms
62,700 KB
testcase_48 AC 785 ms
57,852 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

class dsu:
  def __init__(self,n):
    assert n>0,"n must be Natural"
    self.n=n
    self.parents=[-1]*n
    return
  
  def find(self,x):
    assert x<self.n,"warning!! this is 0 index"
    if self.parents[x]<0:
      return x
    self.parents[x]=self.find(self.parents[x])
    return self.parents[x]
  
  def merge(self,x,y):
    assert x<self.n and y<self.n,"warning!! this is 0 index"
    x=self.find(x)
    y=self.find(y)
    if x==y:
      return
    if self.parents[x]>self.parents[y]:
      x,y=y,x
    self.parents[x]+=self.parents[y]
    self.parents[y]=x
    return
    
  def size(self,x):
    assert x<self.n,"warning!! this is 0 index"
    return -self.parents[self.find(x)]
    
  def same(self,x,y):
    assert x<self.n and y<self.n,"warning!! this is 0 index"
    return self.find(x)==self.find(y)
  
  def leader(self,x):
    assert x<self.n,"warning!! this is 0 index"
    if self.parents[x]<0:
      return x
    self.parents[x]=self.leader(self.parents[x])
    return self.parents[x]
  
  def groups(self):
    ld=[self.leader(i) for i in range(self.n)]
    res=[[] for _ in range(self.n)]
    for i in range(self.n):
      res[ld[i]].append(i)
    return list(filter(lambda a:a !=[],res))
  
from heapq import heapify,heappop,heappush
INF=1000000000000000000
V=0
G=[[] for _ in [0]*100000]
d=[INF]*100000

def dijkstra(s):
  que=[]
  heapify(que)
  d[s]=0
  heappush(que,[0,s])
  while que:
    p=heappop(que)
    v=p[1]
    if d[v]<p[0]:
      continue
    for i in range(len(G[v])):
      e=G[v][i]
      if d[e[0]]>d[v]+e[1]:
        d[e[0]]=d[v]+e[1]
        heappush(que,[d[e[0]],e[0]])
"""
G[from].append([to,value])で追加
"""
  
class INPUT:
  def __init__(self):
    self.l=open(0).read().split()[::-1]
    self.length=len(self.l)
    return

  def stream(self,k=1,f=int,f2=False):
    assert(-1<k)
    m=self.length
    if m==0 or m<k:
      raise Exception("There is no input!")
    elif f!=str:
      if k==0:
        self.length=0
        return list(map(f,self.l[::-1]))
      if k==1 and not f2:
        self.length-=1
        return f(self.l.pop())
      if k==1 and f2:
        self.length-=1
        return [f(self.l.pop())]
      ret=[]
      for _ in [0]*k:
        ret.append(f(self.l.pop()))
      self.length-=k
      return ret
    else:
      if k==0:
        self.length=0
        return self.l[::-1]
      if k==1 and not f2:
        self.length-=1
        return self.l.pop()
      if k==1 and f2:
        self.length-=1
        return [self.l.pop()]
      ret=[]
      for _ in [0]*k:
        ret.append(self.l.pop())
      self.length-=k
      return ret
pin=INPUT().stream

"""
pin(number[default:1],f[default:int],f2[default:False])
if number==0 -> return left all
listを変数で受け取るとき、必ずlistをTrueにすること。
"""

def main():
  n,m=pin(2)
  uf=dsu(n)
  ds=[pin(3)for i in range(m)]
  ds=sorted(ds,key=lambda x:x[2],reverse=True)
  w=float("inf")
  j=m-1
  for i in range(m):
    w=min(w,ds[i][2])
    uf.merge(ds[i][0]-1,ds[i][1]-1)
    G[ds[i][0]-1].append([ds[i][1]-1,1])
    G[ds[i][1]-1].append([ds[i][0]-1,1])
    if uf.same(0,n-1):
      j=i+1
      break
  while j<m and w==ds[j][2]:
    G[ds[j][0]-1].append([ds[j][1]-1,1])
    G[ds[j][1]-1].append([ds[j][0]-1,1])
    j+=1
  dijkstra(0)
  print(w,d[n-1])
  return
main()
0