結果

問題 No.1078 I love Matrix Construction
ユーザー SalmonizeSalmonize
提出日時 2020-06-12 23:10:43
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
AC  
実行時間 1,842 ms / 2,000 ms
コード長 2,713 bytes
コンパイル時間 207 ms
コンパイル使用メモリ 13,184 KB
実行使用メモリ 159,948 KB
最終ジャッジ日時 2024-06-24 05:53:35
合計ジャッジ時間 17,425 ms
ジャッジサーバーID
(参考情報)
judge2 / judge4
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 31 ms
10,880 KB
testcase_01 AC 31 ms
11,008 KB
testcase_02 AC 243 ms
32,760 KB
testcase_03 AC 640 ms
67,592 KB
testcase_04 AC 933 ms
89,532 KB
testcase_05 AC 862 ms
76,276 KB
testcase_06 AC 233 ms
32,008 KB
testcase_07 AC 99 ms
19,072 KB
testcase_08 AC 772 ms
76,236 KB
testcase_09 AC 59 ms
14,208 KB
testcase_10 AC 1,842 ms
159,948 KB
testcase_11 AC 990 ms
93,740 KB
testcase_12 AC 1,533 ms
134,152 KB
testcase_13 AC 1,709 ms
149,900 KB
testcase_14 AC 1,174 ms
106,604 KB
testcase_15 AC 1,607 ms
142,212 KB
testcase_16 AC 88 ms
17,152 KB
testcase_17 AC 30 ms
10,880 KB
testcase_18 AC 171 ms
26,796 KB
testcase_19 AC 391 ms
47,356 KB
testcase_20 AC 392 ms
46,752 KB
testcase_21 AC 39 ms
12,160 KB
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 #

import sys

readline = sys.stdin.readline
readall = sys.stdin.read
ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))
prn = lambda x: print(*x, sep='\n')

def StronglyConnectedComponents(N, G, RG):
    group_cnt = 0
    used = [0] * N
    group = [0] * N
    order = list()

    for s in range(N):
        if not used[s]:
            st = [s]
            used[s] = 1
            while st:
                v = st[-1]
                fl = 0
                if used[v] <= len(G[v]):
                    if not used[G[v][used[v]-1]]:
                        st.append(G[v][used[v]-1])
                        used[G[v][used[v]-1]] = 1
                    used[v] += 1
                else:
                    order.append(v)
                    st.pop()
  
    used = [0] * N

    for s in reversed(order):
        if not used[s]:
            st = [s]
            used[s] = 1
            while st:
                v = st[-1]
                if used[v] <= len(RG[v]):
                    if not used[RG[v][used[v]-1]]:
                        st.append(RG[v][used[v]-1])
                        used[RG[v][used[v]-1]] = 1
                    used[v] += 1
                else:
                    group[v] = group_cnt
                    st.pop()
            group_cnt += 1

    return group_cnt, group


class TwoSatisfilability:
    def __init__(self, N):
        self.N = N
        self.G = [list() for _ in range(N*2)]
        self.RG = [list() for _ in range(N*2)]
        self.res = [0] * N

    def solve(self):
        _, group = StronglyConnectedComponents(self.N * 2, self.G, self.RG)
        for i in range(self.N):
            if group[i] == group[i+self.N]:
                return False, list()
            self.res[i] = int(group[i] > group[i+self.N])
        return True, self.res

    def _add_edge(self, a, b):
        self.G[a].append(b)
        self.RG[b].append(a)
        return

    def add(self, a, apos, b, bpos):
        '''
        a V b
        '''
        self._add_edge(a + self.N * apos, b + self.N * (bpos ^ 1))
        self._add_edge(b + self.N * bpos, a + self.N * (apos ^ 1))
        return


def solve():
    n = ni()
    s = [x-1 for x in nl()]
    t = [x-1 for x in nl()]
    u = nl()
    sat = TwoSatisfilability(n**2)
    for i in range(n):
        cs, ct, cu = s[i], t[i], u[i]
        for j in range(n):
            x = cs * n + j
            y = j * n + ct
            sat.add(x, (cu & 1) ^ 1, y, (cu >> 1) ^ 1)
    bo, ret = sat.solve()
    if not bo:
        print(-1)
    else:
        for i in range(n):
            print(*ret[i*n:(i+1)*n])
    return

solve()
0