Submission #22499

# Submission time Handle Problem Language Result Execution time Memory
22499 2017-04-30T05:07:03 Z admin Young Zebra (KRIII5_YZ) PyPy
7 / 7
405 ms 37 KB
MOD = int(1e9 + 7)

import sys
sys.setrecursionlimit(10000000)

N, M = map(int, sys.stdin.readline().split())
S = ["" for _ in xrange(N)]
for i in xrange(N): S[i] = sys.stdin.readline().strip()

assert 1 <= N <= 400
assert 1 <= M <= 400
assert set(list("".join(S))).issubset(set(['B', 'W']))
assert all(len(line) == M for line in S)

visited = [[False for j in xrange(M)] for i in xrange(N)]
comp = [[0 for j in xrange(M)] for i in xrange(N)]
ans = [[-1 for j in xrange(M)] for i in xrange(N)]
pos = [[(0, 0) for j in xrange(M)] for i in xrange(N)]

num_components = 0
vertices = []

from collections import deque

def dfs (x, y, c):
    que = deque([(x, y)])
    que_len = 1
    visited[x][y] = True
    pos[x][y] = (x, y)
    ret = 0
    while que_len > 0:
        rx, ry = que.popleft()
        que_len -= 1
        x = (rx + N * 2) % N
        y = (ry + M * 2) % M
        ret += 1
        vertices.append((x, y))
        for dx, dy in [(0, -1), (0, +1), (-1, 0), (+1, 0)]:
            nx = (x + dx + N) % N
            ny = (y + dy + M) % M
            nrx = rx + dx
            nry = ry + dy
            if S[nx][ny] != c: continue
            if not visited[nx][ny]:
                visited[nx][ny] = True
                pos[nx][ny] = (nrx, nry)
                que.append((nrx, nry))
                que_len += 1
            elif pos[nx][ny] != (nrx, nry):
                ret = 1e9
    return ret

    """
    if visited[x][y]: return 0
    pos[x][y] = (rx, ry)
    visited[x][y] = True
    vertices.append((x, y))
    #print(x, y, rx, ry, c)
    ret = 1
    return ret"""

for i in xrange(N):
    for j in xrange(M):
        if not visited[i][j]:
            num_components += 1
            vertices = []
            sz = dfs(i, j, S[i][j])
            #print(i, j, sz, vertices)
            if sz < 1e9:
                for x, y in vertices: ans[x][y] = sz

print "\n".join([" ".join(map(str, ans[i])) for i in xrange(N)])
# Verdict Execution time Memory Grader output
1 Correct 303 ms 35 KB Output is correct
2 Correct 275 ms 35 KB Output is correct
3 Correct 274 ms 35 KB Output is correct
4 Correct 310 ms 35 KB Output is correct
5 Correct 299 ms 35 KB Output is correct
6 Correct 281 ms 35 KB Output is correct
7 Correct 333 ms 35 KB Output is correct
8 Correct 245 ms 35 KB Output is correct
9 Correct 405 ms 36 KB Output is correct
10 Correct 266 ms 36 KB Output is correct
11 Correct 307 ms 37 KB Output is correct
12 Correct 296 ms 37 KB Output is correct
13 Correct 305 ms 37 KB Output is correct
14 Correct 297 ms 37 KB Output is correct
15 Correct 365 ms 37 KB Output is correct
16 Correct 293 ms 37 KB Output is correct
17 Correct 254 ms 37 KB Output is correct
18 Correct 262 ms 37 KB Output is correct
19 Correct 203 ms 37 KB Output is correct
20 Correct 340 ms 37 KB Output is correct
21 Correct 305 ms 37 KB Output is correct
22 Correct 314 ms 37 KB Output is correct
23 Correct 327 ms 37 KB Output is correct
24 Correct 327 ms 37 KB Output is correct
25 Correct 388 ms 37 KB Output is correct
26 Correct 29 ms 37 KB Output is correct
27 Correct 28 ms 37 KB Output is correct
28 Correct 64 ms 37 KB Output is correct
29 Correct 54 ms 37 KB Output is correct
30 Correct 30 ms 37 KB Output is correct
31 Correct 28 ms 37 KB Output is correct
32 Correct 52 ms 37 KB Output is correct
33 Correct 42 ms 37 KB Output is correct
34 Correct 28 ms 37 KB Output is correct
35 Correct 31 ms 37 KB Output is correct
36 Correct 91 ms 37 KB Output is correct
37 Correct 109 ms 37 KB Output is correct
38 Correct 88 ms 37 KB Output is correct
39 Correct 102 ms 37 KB Output is correct
40 Correct 79 ms 37 KB Output is correct