number = gets.to_i
numbers = gets.split.map(&:to_i)
for n in (0..number - 1) do
min_index = n
for m in (n..number - 1) do
if numbers[m] < numbers[min_index]
x = numbers[m]
numbers[m] = numbers[min_index]
numbers[min_index] = x
end
end
end
puts numbers.join(" ")
# abc = ["a","b","c"]
# x = abc[1]
# abc[1] = abc[2]
# abc[2] = x
# puts abc
Note that non-ascii characters in the above source code will be escaped (such as \x9f).