Submission #992823
Source Code Expand
from sys import exit, setrecursionlimit from functools import reduce from itertools import * from collections import defaultdict from bisect import bisect def read(): return int(input()) def reads(): return [int(x) for x in input().split()] setrecursionlimit(1000000) (N, M) = reads() d = defaultdict(list) V = set() for i in range(N): V.add(("p", i+1)) for j in range(M): V.add(("l", j+1)) for i in range(1, N+1): Ls = reads()[1:] for j in Ls: d[("l", j)].append(("p", i)) d[("p", i)].append(("l", j)) def walk(v): V.discard(v) for w in d[v]: if w in V: walk(w) # for (k, v) in d.items(): # print(k, v) v = ("p", 1) walk(v) # print(V) print("NO" if len([v for v in V if v[0] == "p"]) > 0 else "YES")
Submission Info
Submission Time | |
---|---|
Task | C - Interpretation |
User | ukikagi |
Language | Python (3.4.3) |
Score | 400 |
Code Size | 794 Byte |
Status | AC |
Exec Time | 946 ms |
Memory | 76524 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 200 / 200 | ||||||
Status |
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|
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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 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 308 ms | 3828 KB |
01-02.txt | AC | 30 ms | 4064 KB |
01-03.txt | AC | 35 ms | 4432 KB |
01-04.txt | AC | 34 ms | 4128 KB |
01-05.txt | AC | 33 ms | 4136 KB |
01-06.txt | AC | 33 ms | 4280 KB |
01-07.txt | AC | 32 ms | 4188 KB |
01-08.txt | AC | 33 ms | 4268 KB |
01-09.txt | AC | 33 ms | 4152 KB |
01-10.txt | AC | 35 ms | 4256 KB |
02-01.txt | AC | 445 ms | 56748 KB |
02-02.txt | AC | 864 ms | 60300 KB |
02-03.txt | AC | 423 ms | 54888 KB |
02-04.txt | AC | 768 ms | 63724 KB |
02-05.txt | AC | 825 ms | 66928 KB |
02-06.txt | AC | 764 ms | 63612 KB |
02-07.txt | AC | 852 ms | 60312 KB |
02-08.txt | AC | 783 ms | 57812 KB |
02-09.txt | AC | 946 ms | 76524 KB |
02-10.txt | AC | 639 ms | 59092 KB |
02-11.txt | AC | 632 ms | 58916 KB |
02-12.txt | AC | 644 ms | 57584 KB |
02-13.txt | AC | 645 ms | 57740 KB |
sample-01.txt | AC | 27 ms | 3700 KB |
sample-02.txt | AC | 27 ms | 3700 KB |