Some solutions for the julia path

julia/collatz-conjecture/collatz-conjecture.jl

@@ -0,0 +1,23 @@
+function is_even(n::Int)
+    return n % 2 == 0
+end
+
+function is_odd(n::Int)
+    return n % 2 != 0
+end
+
+function collatz_steps(n::Int)
+    if n <= 0
+        throw(DomainError("Input must be a positive integer."))
+    end
+    steps = 0
+    while n != 1
+        if is_even(n)
+            n ÷= 2
+        else
+            n = 3 * n + 1
+        end
+        steps += 1
+    end
+    return steps
+end