結果

問題 No.1427 Simplified Tetris
ユーザー tamatotamato
提出日時 2021-03-12 23:27:08
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 7,035 bytes
コンパイル時間 177 ms
コンパイル使用メモリ 82,284 KB
実行使用メモリ 80,364 KB
最終ジャッジ日時 2024-10-14 13:59:32
合計ジャッジ時間 6,959 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
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 58 ms
66,368 KB
testcase_01 AC 58 ms
65,924 KB
testcase_02 AC 165 ms
79,160 KB
testcase_03 AC 58 ms
66,384 KB
testcase_04 WA -
testcase_05 AC 59 ms
66,260 KB
testcase_06 AC 61 ms
65,988 KB
testcase_07 AC 58 ms
65,788 KB
testcase_08 AC 58 ms
65,496 KB
testcase_09 AC 63 ms
67,704 KB
testcase_10 AC 58 ms
65,652 KB
testcase_11 RE -
testcase_12 AC 59 ms
66,628 KB
testcase_13 AC 59 ms
65,172 KB
testcase_14 AC 63 ms
66,680 KB
testcase_15 AC 61 ms
65,924 KB
testcase_16 AC 71 ms
71,968 KB
testcase_17 AC 60 ms
67,200 KB
testcase_18 AC 59 ms
65,880 KB
testcase_19 AC 160 ms
79,188 KB
testcase_20 AC 58 ms
66,116 KB
testcase_21 AC 58 ms
65,912 KB
testcase_22 AC 68 ms
69,364 KB
testcase_23 AC 60 ms
65,992 KB
testcase_24 AC 83 ms
74,640 KB
testcase_25 AC 107 ms
78,152 KB
testcase_26 WA -
testcase_27 WA -
testcase_28 RE -
testcase_29 AC 65 ms
69,760 KB
testcase_30 AC 58 ms
65,568 KB
testcase_31 AC 154 ms
79,084 KB
testcase_32 RE -
testcase_33 AC 164 ms
79,320 KB
testcase_34 AC 60 ms
66,720 KB
testcase_35 WA -
testcase_36 RE -
testcase_37 AC 80 ms
74,536 KB
testcase_38 RE -
testcase_39 RE -
testcase_40 RE -
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 #

mod = 1000000007
eps = 10**-9


def main():
    import sys
    import itertools
    from collections import deque
    import string
    input = sys.stdin.readline

    class Dinic:
        def __init__(self, N):
            self.N = N
            self.adj = [[] for _ in range(N + 1)]
            self.lv = None
            self.progress = None
            self.inf = 1 << 60

        def add_edge(self, fr, to, cap):
            # [to, cap, rev]
            forward = [to, cap, None]
            backward = forward[2] = [fr, 0, forward]
            self.adj[fr].append(forward)
            self.adj[to].append(backward)

        def bfs(self, s, t):
            que = deque([s])
            lv = [-1] * (self.N + 1)
            lv[s] = 0
            while que:
                v = que.popleft()
                lvv = lv[v]
                for u, cap, _ in self.adj[v]:
                    if cap and lv[u] == -1:
                        que.append(u)
                        lv[u] = lvv + 1
                        if u == t:
                            break
            self.lv = lv

        def dfs(self, s, t, flow):
            st = deque([s])
            st_f = deque([flow])
            while st:
                v = st[-1]
                f = st_f[-1]
                if v == t:
                    for i in range(len(st) - 1, 0, -1):
                        p = st[i - 1]
                        edge = self.adj[p][self.progress[p] - 1]
                        edge[1] -= f
                        edge[2][1] += f
                        v = p
                    return f
                if self.progress[v] == len(self.adj[v]):
                    st.pop()
                    st_f.pop()
                    continue
                else:
                    adj_v = self.adj[v]
                    for i in range(self.progress[v], len(adj_v)):
                        i = self.progress[v]
                        self.progress[v] = i + 1
                        u, cap, rev = adj_v[i]
                        if not cap or self.lv[u] != self.lv[v] + 1:
                            continue
                        else:
                            st.append(u)
                            st_f.append(min(st_f[-1], cap))
                            break

        def max_flow(self, s, t):
            flow = 0
            while True:
                self.bfs(s, t)
                if self.lv[t] < 0:
                    return flow
                self.progress = [0] * (self.N + 1)
                flow_new = self.dfs(s, t, self.inf)
                while flow_new:
                    flow += flow_new
                    flow_new = self.dfs(s, t, self.inf)

    def fall(grid):
        H, W = len(grid), len(grid[0])
        grid_new = []
        for h in range(H):
            if grid[h] != "." * W:
                grid_new.append(grid[h])
        grid_new = ["." * W] * (H - len(grid_new)) + grid_new
        return grid_new

    H, W = map(int, input().split())
    grid = []
    for _ in range(H):
        grid.append(input().rstrip('\n'))

    grid_fallen = fall(grid)
    for h in range(H):
        for w in range(W):
            if grid[h][w] != grid_fallen[h][w]:
                print("No")
                exit()

    empty_num = 0
    for h in range(H):
        if grid[h] == "." * W:
            empty_num += 1
    non_empty_num = H - empty_num
    if W&1:
        cnt = 0
        for h in range(H):
            for w in range(W):
                if grid[h][w] == "#":
                    cnt += 1
        if (cnt + empty_num)&1:
            if empty_num == 0:
                print("No")
                exit()
            empty_num -= 1

    L = list(range(empty_num + non_empty_num))
    for e in range(empty_num, -1, -1):
        for v in itertools.combinations(L, e):
            grid_new = []
            v = set(v)
            cnt = empty_num
            if empty_num + non_empty_num != H:
                cnt += 1
            for i in range(empty_num + non_empty_num):
                if i in v:
                    grid_new.append("#" * W)
                else:
                    grid_new.append(grid[cnt])
                    cnt += 1
            if empty_num + non_empty_num != H:
                grid_new = ["." * W] + grid_new

            grid_new_new = [["."] * W for _ in range(H)]
            for h in range(H):
                for w in range(W):
                    grid_new_new[h][w] = grid_new[h][w]
            grid_new = grid_new_new

            block_num = 0
            for h in range(H):
                for w in range(W):
                    if grid_new[h][w] == "#":
                        block_num += 1
            if block_num & 1:
                continue
            block_num //= 2

            D = Dinic(H * W + 2)
            s = H * W + 1
            t = H * W + 2
            dhw = [(0, 1), (0, -1), (1, 0), (-1, 0)]
            for h in range(H):
                for w in range(W):
                    if (h + w) % 2 == 0:
                        D.add_edge(s, h * W + w + 1, 1)
                    else:
                        D.add_edge(h * W + w + 1, t, 1)
                    if grid_new[h][w] == "#" and (h + w) % 2 == 0:
                        for dh, dw in dhw:
                            h_new, w_new = h + dh, w + dw
                            if 0 <= h_new < H and 0 <= w_new < W:
                                if grid_new[h_new][w_new] == "#":
                                    D.add_edge(h * W + w + 1, h_new * W + w_new + 1, 1)
            flow = D.max_flow(s, t)
            abc = string.ascii_letters
            i_abc = 0
            if flow == block_num:
                for h in range(H):
                    for w in range(W):
                        if (h + w) % 2 == 0:
                            hw = h * W + w + 1
                            for hw_new, cap, _ in D.adj[hw]:
                                if hw_new == s:
                                    continue
                                if cap == 0:
                                    h_new, w_new = divmod(hw_new - 1, W)
                                    sss = abc[i_abc]
                                    if h == h_new:
                                        if w < w_new:
                                            grid_new[h][w], grid_new[h][w_new] = sss, sss
                                        else:
                                            grid_new[h][w_new], grid_new[h][w] = sss, sss
                                    else:
                                        if h < h_new:
                                            grid_new[h][w], grid_new[h_new][w] = sss, sss
                                        else:
                                            grid_new[h_new][w], grid_new[h][w] = sss, sss
                                    i_abc += 1
                print("Yes")
                for h in range(H):
                    print("".join(grid_new[h]))
                exit()

    print("No")


if __name__ == '__main__':
    main()
0