CODE FESTIVAL 2016 Final

Submission #5889714

Source codeソースコード

n, m = [int(item) for item in input().split()]
query = []
appeared = set()
for i in range(n):
    line = [int(item) for item in input().split()]
    appeared.update(line[1:])
    query.append(line[1:])
    
class UnionFind:
    def __init__(self, n):
        self.par = [i for i in range(n)]
        self.size = [1] * n
        self.rank = [0] * n

    def find(self, x):
        if self.par[x] == x:
            return x
        else:
            self.par[x] = self.find(self.par[x])
            return self.par[x]

    def same_check(self, x, y):
        return self.find(x) == self.find(y)

    def get_size(self, x):
        return self.size[self.find(x)]

    def union(self, x, y):
        x = self.find(x)
        y = self.find(y)

        if self.rank[x] < self.rank[y]:
            self.par[x] = y
        else:
            self.par[y] = x
            if self.rank[x] == self.rank[y]:
                self.rank[x] += 1

uf = UnionFind(m)
for q in query:
    if len(q) == 1:
        continue
    for item in q[1:]:
        if not uf.same_check(q[0]-1, item-1):
            uf.union(q[0]-1, item-1)
    
par = uf.find(appeared.pop() - 1)
for item in appeared:
    if uf.find(item - 1) != par:
        print("No")
        exit()
print("Yes")

Submission

Task問題 C - Interpretation
User nameユーザ名 nagitaosu
Created time投稿日時
Language言語 Python3 (3.4.3)
Status状態 WA
Score得点 0
Source lengthソースコード長 1298 Byte
File nameファイル名
Exec time実行時間 ms
Memory usageメモリ使用量 -

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt
dataset1 0 / 200 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 0 / 200 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

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt WA
01-02.txt WA
01-03.txt WA
01-04.txt WA
01-05.txt WA
01-06.txt WA
01-07.txt WA
01-08.txt WA
01-09.txt WA
01-10.txt WA
02-01.txt WA
02-02.txt WA
02-03.txt WA
02-04.txt WA
02-05.txt WA
02-06.txt WA
02-07.txt WA
02-08.txt WA
02-09.txt WA
02-10.txt WA
02-11.txt WA
02-12.txt WA
02-13.txt WA
sample-01.txt WA
sample-02.txt WA