first commit

p46/solution.jl

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+include("../util/sieve.jl")
+import .erastothenes_sieve: get_sieve, run, get, get_primes, get_composites
+
+function solution(n::Int)
+    sieve = get_sieve()
+    run(sieve, n)
+    primes = get_primes(sieve)
+    composites = vcat([0], get_composites(sieve));
+    n_max = primes[end]
+    composite_doable = falses(n_max)
+    for i = 0:floor(sqrt(n))
+        for p = primes
+            number = p + 2*i*i
+            if number <= n_max
+                composite_doable[Int(number)] = true
+            end
+        end
+    end
+    for i = 1:length(composite_doable)
+        if !composite_doable[i] && !iseven(i)
+            println(i)
+        end
+    end
+end
+
+solution(10000)