N, K = gets.split.map &:to_i L = gets.split.map &:to_i LI = L.map.with_index{|l, i| [l, i]}.sort_by{|l, i| -l} board = $<.map{|s| s.chomp.chars } $rows = board.map{|a| a*"" } $cols = board.transpose.map{|a| a*"" } def count_white $rows.map{|a| N - a.count(?1) }.sum end FirstScore = count_white def calc_score count_white - FirstScore end # p FirstScore # p calc_score() $memo = [] def update_memo(re = /1{5,}/) $memo.clear() $rows.map.with_index{|s, i| s.scan(re){ $memo << [:r, $&.size, i, $`.size] } } $cols.map.with_index{|s, i| s.scan(re){ $memo << [:c, $&.size, i, $`.size] } } $memo.sort_by!{|sym, size, idx, pos| -size} end ans = [] LI.each{|l, i| update_memo(/1{#{l-3},}/) sym, size, idx, pos = $memo.shift if sym.nil? sym = [:r, :c].sample idx = rand(N) pos = rand(N) end pos = [N - l, pos].min if sym == :r t = $rows[idx][pos, l] $rows[idx][pos, l] = t.tr("01", "10") (pos...pos+l).each{|j| c = $cols[j][idx] $cols[j][idx] = c == ?1 ? ?0 : ?1 } a = c = idx + 1 b = pos + 1 d = pos + l else t = $cols[idx][pos, l] $cols[idx][pos, l] = t.tr("01", "10") (pos...pos+l).each{|j| c = $rows[j][idx] $rows[j][idx] = c == ?1 ? ?0 : ?1 } b = d = idx + 1 a = pos + 1 c = pos + l end ans[i] = [a, b, c, d] } ans.each{|a| puts a * " " } # p calc_score()