結果
問題 | No.2780 The Bottle Imp |
ユーザー | timi |
提出日時 | 2024-06-07 23:02:58 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,602 bytes |
コンパイル時間 | 304 ms |
コンパイル使用メモリ | 82,384 KB |
実行使用メモリ | 121,268 KB |
最終ジャッジ日時 | 2024-06-08 10:37:20 |
合計ジャッジ時間 | 7,280 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 43 ms
53,888 KB |
testcase_01 | AC | 42 ms
54,400 KB |
testcase_02 | AC | 41 ms
54,144 KB |
testcase_03 | WA | - |
testcase_04 | AC | 43 ms
53,888 KB |
testcase_05 | AC | 42 ms
53,760 KB |
testcase_06 | AC | 42 ms
54,016 KB |
testcase_07 | AC | 186 ms
96,484 KB |
testcase_08 | AC | 193 ms
94,188 KB |
testcase_09 | AC | 174 ms
91,940 KB |
testcase_10 | AC | 178 ms
91,524 KB |
testcase_11 | AC | 169 ms
91,960 KB |
testcase_12 | AC | 225 ms
113,804 KB |
testcase_13 | AC | 229 ms
113,420 KB |
testcase_14 | AC | 128 ms
94,720 KB |
testcase_15 | AC | 131 ms
92,544 KB |
testcase_16 | AC | 135 ms
93,900 KB |
testcase_17 | AC | 132 ms
95,232 KB |
testcase_18 | AC | 128 ms
94,592 KB |
testcase_19 | AC | 130 ms
95,104 KB |
testcase_20 | AC | 129 ms
95,104 KB |
testcase_21 | AC | 128 ms
94,720 KB |
testcase_22 | AC | 149 ms
82,560 KB |
testcase_23 | AC | 132 ms
89,324 KB |
testcase_24 | AC | 165 ms
89,856 KB |
testcase_25 | AC | 210 ms
103,908 KB |
testcase_26 | AC | 163 ms
88,576 KB |
testcase_27 | AC | 132 ms
95,360 KB |
testcase_28 | AC | 131 ms
95,360 KB |
testcase_29 | AC | 132 ms
89,088 KB |
testcase_30 | AC | 117 ms
91,672 KB |
testcase_31 | WA | - |
testcase_32 | AC | 96 ms
92,416 KB |
testcase_33 | AC | 159 ms
112,128 KB |
testcase_34 | AC | 188 ms
121,268 KB |
testcase_35 | AC | 96 ms
83,968 KB |
testcase_36 | AC | 44 ms
54,400 KB |
testcase_37 | AC | 43 ms
54,016 KB |
testcase_38 | WA | - |
testcase_39 | AC | 156 ms
105,728 KB |
testcase_40 | WA | - |
testcase_41 | AC | 156 ms
105,052 KB |
testcase_42 | AC | 43 ms
54,144 KB |
testcase_43 | AC | 42 ms
54,016 KB |
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 s=0 for i in range(len(ans)): B=ans[i] for b in B: D[b]=i if b==0: s=i DD={} for x,y in C: x,y=D[x],D[y] if x not in DD: DD[x]=[y] V=[-1]*d from collections import deque d=deque() d.append(s) while d: now=d.popleft() V[now]=1 if now in DD: nex=DD[now][0] if V[nex]==-1: d.append(nex) if len(set(V))==1: print('Yes') else: print('No')