first commit

p104/solution.jl

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+
+function solution()
+    fn = fp = n = BigInt(1)
+    while true
+        fn, fp, n = fn+fp, fn, n+1
+        if is_pandigital(fn) return n+1 end
+    end
+end
+
+function is_pandigital(n)
+    if log10(n) + 1 < 9 return false end
+    d = digits(n)
+    S = Set(1:9)
+    return Set(d[1:9]) == S && Set(d[end-8:end]) == S
+end