結果
問題 | No.2780 The Bottle Imp |
ユーザー | timi |
提出日時 | 2024-06-07 22:23:43 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,593 bytes |
コンパイル時間 | 154 ms |
コンパイル使用メモリ | 82,176 KB |
実行使用メモリ | 106,128 KB |
最終ジャッジ日時 | 2024-06-08 10:33:18 |
合計ジャッジ時間 | 5,839 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(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 | 39 ms
59,520 KB |
testcase_01 | AC | 41 ms
54,016 KB |
testcase_02 | AC | 43 ms
53,888 KB |
testcase_03 | AC | 39 ms
54,144 KB |
testcase_04 | AC | 40 ms
53,888 KB |
testcase_05 | AC | 40 ms
54,400 KB |
testcase_06 | AC | 40 ms
54,272 KB |
testcase_07 | AC | 174 ms
95,324 KB |
testcase_08 | AC | 178 ms
95,168 KB |
testcase_09 | AC | 157 ms
91,940 KB |
testcase_10 | AC | 163 ms
91,396 KB |
testcase_11 | AC | 156 ms
91,692 KB |
testcase_12 | AC | 203 ms
106,128 KB |
testcase_13 | AC | 202 ms
105,620 KB |
testcase_14 | AC | 127 ms
94,720 KB |
testcase_15 | AC | 125 ms
92,800 KB |
testcase_16 | TLE | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
ソースコード
from collections import Counter, defaultdict, deque import sys input=sys.stdin.readline N=int(input()) n=N #n,m=map(int,input().split()) class SCC: def __init__(self,n): self.n = n self.edges = [] def add_edge(self,a,b): self.edges.append((a,b)) def scc(self): n = self.n counter = [0]*(n+1) elist = [0]*len(self.edges) for x,y in self.edges: counter[x+1] += 1 for x in range(n): counter[x+1] += counter[x] start = counter[:] for x,y in self.edges: elist[counter[x]] = y counter[x] += 1 k = 0 low = [0]*n num = [-1]*n pre = [None]*n visited = [] q = [] sccs = [] for x in range(n): if num[x] < 0: q.append(x) q.append(x) while q: x = q.pop() if num[x] < 0: low[x] = num[x] = k k += 1 visited.append(x) for i in range(start[x],start[x+1]): y = elist[i] if num[y] < 0: q.append(y) q.append(y) pre[y] = x else: low[x] = min(low[x],num[y]) else: if low[x] == num[x]: scc = [] while 1: y = visited.pop() num[y] = n scc.append(y) if x == y: break sccs.append(scc) y = pre[x] if y is not None: low[y] = min(low[y],low[x]) return sccs[::-1] scc = SCC(n) C=[] for i in range(N): A=list(map(int, input().split())) B=A[1:] for b in B: C.append((i,b-1)) scc.add_edge(i,b-1) ans = scc.scc() d=len(ans) D=[-1]*N for i in range(len(ans)): B=ans[i] for b in B: D[b]=i E=[[] for i in range(d)] for x,y in C: x,y=D[x],D[y] if y!=0: E[x].append(y) V=[-1]*d from collections import deque d=deque() d.append(0) su=d while d: now=d.popleft() V[now]=1 F=list(set(E[now])) if len(F)==1: nex=F[0] d.append(nex) if len(set(V))==1: print('Yes') else: print('No')