結果

問題 No.307 最近色塗る問題多くない?
ユーザー rpy3cpprpy3cpp
提出日時 2015-11-28 01:56:38
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 2,623 ms / 4,000 ms
コード長 3,029 bytes
コンパイル時間 286 ms
コンパイル使用メモリ 87,076 KB
実行使用メモリ 181,012 KB
最終ジャッジ日時 2023-08-14 03:58:21
合計ジャッジ時間 11,754 ms
ジャッジサーバーID
(参考情報)
judge11 / judge13
このコードへのチャレンジ
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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 72 ms
71,504 KB
testcase_01 AC 71 ms
71,292 KB
testcase_02 AC 73 ms
71,384 KB
testcase_03 AC 71 ms
71,352 KB
testcase_04 AC 109 ms
78,024 KB
testcase_05 AC 74 ms
71,296 KB
testcase_06 AC 76 ms
75,424 KB
testcase_07 AC 215 ms
80,752 KB
testcase_08 AC 395 ms
85,532 KB
testcase_09 AC 327 ms
83,824 KB
testcase_10 AC 222 ms
80,800 KB
testcase_11 AC 324 ms
82,516 KB
testcase_12 AC 72 ms
71,408 KB
testcase_13 AC 133 ms
77,800 KB
testcase_14 AC 142 ms
78,984 KB
testcase_15 AC 165 ms
79,036 KB
testcase_16 AC 146 ms
79,484 KB
testcase_17 AC 297 ms
83,892 KB
testcase_18 AC 284 ms
87,208 KB
testcase_19 AC 292 ms
87,376 KB
testcase_20 AC 132 ms
78,932 KB
testcase_21 AC 217 ms
90,868 KB
testcase_22 AC 245 ms
90,860 KB
testcase_23 AC 190 ms
90,376 KB
testcase_24 AC 177 ms
91,400 KB
testcase_25 AC 236 ms
90,772 KB
testcase_26 AC 208 ms
91,180 KB
testcase_27 AC 371 ms
91,612 KB
testcase_28 AC 2,623 ms
181,012 KB
testcase_29 AC 125 ms
77,404 KB
testcase_30 AC 251 ms
92,504 KB
testcase_31 AC 499 ms
92,856 KB
testcase_32 AC 198 ms
90,804 KB
testcase_33 AC 151 ms
81,380 KB
testcase_34 AC 191 ms
81,680 KB
testcase_35 AC 195 ms
81,928 KB
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ソースコード

diff #

class DisjointSet(object):
    def __init__(self, n):
        self.parent = list(range(n))
        self.rank = [0] * n
        self.num = n  # number of disjoint sets

    def union(self, x, y):
        self._link(self.find_set(x), self.find_set(y))

    def _link(self, x, y):
        if x == y:
            return
        self.num -= 1
        if self.rank[x] > self.rank[y]:
            self.parent[y] = x
        else:
            self.parent[x] = y
            if self.rank[x] == self.rank[y]:
                self.rank[y] += 1

    def find_set(self, x):
        xp = self.parent[x]
        if xp != x:
            self.parent[x] = self.find_set(xp)
        return self.parent[x]

class PaintSet(object):
    def __init__(self, color, H, W):
        self.color = color
        self.H = H
        self.W = W
        self.ds = DisjointSet(H * W)
        ds = self.ds
        pos = 0
        for r in range(H):
            for c in range(W):
                col = color[pos]
                if r+1 < H and color[pos + W] == col:
                    ds.union(pos, pos + W)
                if c+1 < W and color[pos + 1] == col:
                    ds.union(pos, pos + 1)
                pos += 1
        Es = [set() for i in range(W * H)]
        pos = 0
        for r in range(H):
            for c in range(W):
                col = color[pos]
                p = ds.find_set(pos)
                if r+1 < H and color[pos + W] != col:
                    p2 = ds.find_set(pos + W)
                    Es[p].add(p2)
                    Es[p2].add(p)
                if c+1 < W and color[pos + 1] != col:
                    p2 = ds.find_set(pos + 1)
                    Es[p].add(p2)
                    Es[p2].add(p)
                pos += 1
        self.Es = Es

    def paint(self, r, c, x):
        p = self.ds.find_set(r * self.W + c)
        if self.color[p] == x:
            return
        self.color[p] = x
        if self.ds.num == 1:
            return
        Es = self.Es
        ds = self.ds
        new_neighbour = set()
        for v in Es[p]:
            pv = ds.find_set(v)
            ds.union(p, pv)
            for u in Es[pv]:
                new_neighbour.add(ds.find_set(u))
            Es[pv] = set()
        if p in new_neighbour:
            new_neighbour.remove(p)
        newp = ds.find_set(p)
        Es[newp] = new_neighbour

    def pprint(self):
        W = self.W
        H = self.H
        color = self.color
        ds = self.ds
        pos = 0
        for r in range(H):
            row = []
            for c in range(W):
                col = color[ds.find_set(pos)]
                row.append(col)
                pos += 1
            print(*row)


if __name__ == "__main__":
    H, W = map(int, input().split())
    color = []
    for r in range(H):
        color.extend(list(map(int, input().split())))
    paintset = PaintSet(color, H, W)
    Q = int(input())
    for q in range(Q):
        r, c, x = map(int, input().split())
        paintset.paint(r-1, c-1, x)
    paintset.pprint()
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