Submission #6905109
Source Code Expand
N,M=map(int,input().split()) L=[list(map(int,input().split())) for i in range(N)] import sys sys.setrecursionlimit(10**5) class UnionFind: def __init__(self,N): self.Parent=[-1]*N def unite(self,m,n): rm=self.root(m) rn=self.root(n) if rm==rn: return False else: if self.size(rm)<self.size(rn): rm,rn=rn,rm self.Parent[rm]+=self.Parent[rn] self.Parent[rn]=rm return True def root(self,n): if self.Parent[n]<0: return n else: self.Parent[n]=self.root(self.Parent[n]) return self.Parent[n] def size(self,n): return -self.Parent[self.root(n)] u=UnionFind(M) used=[0]*M for x,*l in L: used[l[0]-1]=1 for i in range(x-1): used[l[i+1]-1]=1 u.unite(l[i]-1,l[i+1]-1) print(['NO','YES'][u.size(L[0][1])==sum(used)])
Submission Info
Submission Time | |
---|---|
Task | C - Interpretation |
User | st2d |
Language | Python (3.4.3) |
Score | 0 |
Code Size | 955 Byte |
Status | RE |
Exec Time | 399 ms |
Memory | 25804 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 200 | 0 / 200 | ||||||||||||||
Status |
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Set Name | Test Cases |
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sample | sample-01.txt, sample-02.txt |
dataset1 | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt |
dataset2 | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, sample-01.txt, sample-02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | RE | 18 ms | 3064 KB |
01-02.txt | AC | 20 ms | 3064 KB |
01-03.txt | AC | 21 ms | 3188 KB |
01-04.txt | RE | 21 ms | 3188 KB |
01-05.txt | AC | 21 ms | 3188 KB |
01-06.txt | WA | 21 ms | 3188 KB |
01-07.txt | WA | 21 ms | 3064 KB |
01-08.txt | AC | 20 ms | 3188 KB |
01-09.txt | AC | 21 ms | 3188 KB |
01-10.txt | AC | 21 ms | 3188 KB |
02-01.txt | WA | 264 ms | 9308 KB |
02-02.txt | AC | 372 ms | 22856 KB |
02-03.txt | AC | 257 ms | 9204 KB |
02-04.txt | WA | 352 ms | 18212 KB |
02-05.txt | AC | 355 ms | 20732 KB |
02-06.txt | AC | 353 ms | 18280 KB |
02-07.txt | AC | 376 ms | 22620 KB |
02-08.txt | AC | 375 ms | 20980 KB |
02-09.txt | AC | 399 ms | 25804 KB |
02-10.txt | AC | 315 ms | 16748 KB |
02-11.txt | AC | 312 ms | 16752 KB |
02-12.txt | AC | 303 ms | 16216 KB |
02-13.txt | AC | 300 ms | 16208 KB |
sample-01.txt | AC | 18 ms | 3064 KB |
sample-02.txt | AC | 17 ms | 3064 KB |