提出詳細

提出id	提出時刻	ユーザー名	問題	言語	判定状況	判定	実行時間
114833	2023-10-24 08:41:34	hiikunZ	J	python	11/11	RE	86

# UnionFind
class UnionFind:
    def __init__(self, n):
        self.par = [-1] * n
        self.S = n
    def root(self, A):
        if self.par[A] < 0:
            return A
        self.par[A] = self.root(self.par[A])
        return self.par[A]
    def same(self, A, B):
        return self.root(A) == self.root(B)
    def unite(self, A, B):
        a = self.root(A)
        b = self.root(B)
        if a == b:
            return False
        if self.par[a] > self.par[b]:
            a, b = b, a
        self.par[a] += self.par[b]
        self.par[b] = a
        self.S -= 1
        return True
    def size(self, A):
        return -self.par[self.root(A)]
    def size(self):
        return self.S

# main
N, M, X, P = map(int, input().split())
B = list(map(int, input().split()))
T = list(map(int, input().split()))
assert(1 <= N and N <= 100)
assert(1 <= M and M <= 100000)
assert(1 <= X and X <= 100000)
assert(1 <= P and P <= 1000000000)
assert(len(B) == N)
assert(len(T) == M)
for i in range(N):
    assert(1 <= B[i] and B[i] <= 1000000000)
for i in range(M):
    assert(1 <= T[i] and T[i] <= 1000000000)
UF = UnionFind(M + 100)
for i in range(X):
    u, v = map(int, input().split())
    assert(1 <= u and u <= M)
    assert(1 <= v and v <= M)
    u -= 1
    v -= 1
    UF.unite(u, v)

ok = True
try:
    u,v = map(int, input().split())
    ok = False
except:
    pass

assert(ok)

ans = 0
for i in range(M):
    dis = 10**18
    for j in range(N):
        dis = min(dis, abs(B[j] - T[i]))
    if dis <= P:
        if UF.unite(i, M):
            ans += 1
print(ans)

case1.txt AC 18
case2.txt RE 86
case3.txt RE 75
case4.txt RE 74
case5.txt RE 75
case6.txt RE 76
case9.txt RE 77
case10.txt RE 77
case11.txt RE 75
case13.txt RE 75
sample1.txt AC 16
86 RE