project-euler/Sidef/052 Permuted multiples -- v2.sf

#!/usr/bin/ruby

# Author: Trizen
# Date: 19 April 2023
# https://github.com/trizen

# Find the smallest positive integer, x, such that 2x, 3x, 4x, 5x, and 6x, contain the same digits.

# https://projecteuler.net/problem=52

# Runtime: 2.483s

for x in (1..Inf) {
    var t = Str(2*x).sort
    if (t == Str(3*x).sort && [4,5,6].all {|k| Str(k*x).sort == t }) {
        say x
        break
    }
}