19/03/10 03:08:27.84 LqrBe0vy.net
>>571 ruby
s = "abc"
n = 2
t = "*" * s.length
t[n - 1] = s[n - 1]
u = s.clone
u[n - 1] = "*"
puts(t, u)
19/03/10 03:08:27.84 LqrBe0vy.net
>>571 ruby
s = "abc"
n = 2
t = "*" * s.length
t[n - 1] = s[n - 1]
u = s.clone
u[n - 1] = "*"
puts(t, u)