結果
問題 |
No.2412 YOU Grow Bigger!
|
ユーザー |
![]() |
提出日時 | 2023-08-11 23:18:58 |
言語 | Crystal (1.14.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,595 bytes |
コンパイル時間 | 11,810 ms |
コンパイル使用メモリ | 296,360 KB |
実行使用メモリ | 11,684 KB |
最終ジャッジ日時 | 2024-11-18 18:42:31 |
合計ジャッジ時間 | 12,923 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 21 WA * 8 |
ソースコード
h, w = read_line.split.map(&.to_i) s = Array.new(h) { read_line.chars.map { |ch| ch == '#' } } h.times do |i| w.times do |j| if s[i][j] -2.upto(0) do |dy| -2.upto(0) do |dx| ny = i + dy nx = j + dx next if ny < 0 || h <= ny || nx < 0 || w <= nx s[ny][nx] = true end end end end end 0.upto(h - 4) do |i| s[i][w - 2] = true s[i][w - 1] = true end 0.upto(w - 4) do |i| s[h - 2][i] = true s[h - 1][i] = true end g = Array.new(h * w + 2) { [] of Tuple(Int32, Int32) } start = h * w goal = h * w + 1 3.times do |i| 1.upto(h - 1) do |j| g[start] << {j * w + i, 1} end end (h - 3).upto(h - 1) do |i| 0.upto(w - 4) do |j| g[start] << {i * w + j, 1} end end h.times do |i| if s[i][0] g[start] << {i * w, 0} end g[i * w + w - 1] << {goal, 0} if i < h - 3 end w.times do |i| if s[h - 1][i] g[start] << {(h - 1) * w + i, 0} end g[i] << {goal, 0} if i > 0 end h.times do |i| w.times do |j| if i > 0 && s[i - 1][j] g[i * w + j] << {(i - 1) * w + j, 0} end if i < h - 1 && s[i + 1][j] g[i * w + j] << {(i + 1) * w + j, 0} end if j > 0 && s[i][j - 1] g[i * w + j] << {i * w + j - 1, 0} end if j < w - 1 && s[i][j + 1] g[i * w + j] << {i * w + j + 1, 0} end [[-1, 0], [-1, 1], [-1, 2], [0, -1], [0, 0], [0, 1], [0, 2], [0, 3], [1, -1], [1, 0], [1, 1], [1, 2], [1, 3], [2, -1], [2, 0], [2, 1], [2, 2], [2, 3], [3, 0], [3, 1], [3, 2]].each do |mv| my = mv[0] + i mx = mv[1] = j next if my < 0 || h <= my || mx < 0 || w <= mx next if my < 3 && mx < 3 next if my >= h - 3 && mx >= w - 3 -2.upto(0) do |dy| -2.upto(0) do |dx| ny = my + dy nx = mx + dx next if ny < 0 || h <= ny || nx < 0 || w <= nx g[i * w + j] << {ny * w + nx, 1} end end end # -3.upto(3) do |dy| # -3.upto(3) do |dx| # next if dy.abs + dx.abs == 6 # ny = i + dy # nx = j + dx # next if ny < 0 || h <= ny || nx < 0 || w <= nx # next if ny == 0 && nx == 0 # next if ny >= h - 3 && nx >= w - 3 # g[i * w + j] << {ny * w + nx, 1} # end # end end end dist = Array.new(g.size, 1 << 29) dist[start] = 0 q = Deque.new([{start, 0}]) while !q.empty? cp, cd = q.shift # puts [cp // w, cp % w, cd] g[cp].each do |adj, d| nd = cd + d next if dist[adj] <= nd dist[adj] = nd if d == 0 q.unshift({adj, nd}) else q << {adj, nd} end end end puts dist[goal]