20/05/20 23:01:41 2ebYf5N5.net
>>575 Ruby
n, m = gets.split.map{|s| s.to_i}
na = [ ['-']*(n+m), [' ']*(n*(m-1)-n-m) ].flatten.shuffle
ma = [ ['|']*(n+m), [' ']*(m*(n-1)-n-m) ].flatten.shuffle
n.times{|y|
puts [ na[y*(m-1)...(y+1)*(m-1)].map{|s|'o'+s}, 'o' ] * ''
puts ma[ y*m...(y+1)*m ].join(' ') if y != n-1
}