結果

問題 No.1605 Matrix Shape
ユーザー trineutron
提出日時 2021-07-16 21:57:55
言語 Python3
(3.13.1 + numpy 2.2.1 + scipy 1.14.1)
結果
AC  
実行時間 1,303 ms / 2,000 ms
コード長 976 bytes
コンパイル時間 507 ms
コンパイル使用メモリ 12,544 KB
実行使用メモリ 23,424 KB
最終ジャッジ日時 2024-07-06 09:05:56
合計ジャッジ時間 23,204 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
sample AC * 3
other AC * 34
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

n = int(input())
par = [i for i in range(200000)]
sz = [1] * 200000
def find(k):
    if par[k] == k:
        return k
    par[k] = find(par[k])
    return par[k]
def merge(k, l):
    k = find(k)
    l = find(l)
    if k == l:
        return
    if sz[k] > sz[l]:
        k, l = l, k
    par[k] = l
    sz[l] += sz[k]
count_h = [0] * 200000
count_w = [0] * 200000
for i in range(n):
    h, w = map(int, input().split())
    h -= 1
    w -= 1
    count_h[h] += 1
    count_w[w] += 1
    merge(h, w)
root = -1
for i in range(200000):
    if count_h[i] + count_w[i]:
        if root == -1:
            root = find(i)
        elif find(i) != root:
            print(0)
            exit()
ans = 0
diff = []
for i in range(200000):
    if abs(count_h[i] - count_w[i]) > 1:
        print(0)
        exit()
    elif count_h[i] != count_w[i]:
        diff.append(i)
    elif count_h[i]:
        ans += 1
if len(diff) > 2:
    print(0)
elif diff:
    print(1)
else:
    print(ans)
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0