Initial commit

dotnet/Program.cs

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+using System;
+using System.Collections.Generic;
+
+namespace ConsoleApplication
+{
+    public class Program
+    {
+        private static void get_primes7(int n, List<int> res)
+        {
+            if (n < 2) return;
+            if (n == 2)
+            {
+                res.Add(2);
+                return;
+            }
+
+            List<int> s = new List<int>();
+            for (int z = 3; z < n + 1; z += 2)
+            {
+                s.Add(z);
+            }
+
+            int mroot = (int)Math.Sqrt(n);
+            int half = s.Count;
+            int i = 0;
+            int m = 3;
+            while (m <= mroot)
+            {
+                if (s[i] != 0)
+                {
+                    int j = (int)((m * m - 3) * 0.5);
+                    s[j] = 0;
+                    while (j < half)
+                    {
+                        s[j] = 0;
+                        j += m;
+                    }
+                }
+                i = i + 1;
+                m = 2 * i + 3;
+            }
+
+            res.Add(2);
+            s.RemoveAll(item => item == 0);
+            res.AddRange(s);
+        }
+
+        public static double getPeriodTime()
+        {
+            string runTimeS = Environment.GetEnvironmentVariable("RUN_TIME");
+            if (runTimeS == null || runTimeS.Length == 0)
+            {
+                throw new ArgumentException("Environment RUN_TIME is not set");
+            }
+            return Convert.ToDouble(runTimeS);
+        }
+
+        public static void Main(string[] args)
+        {
+            DateTime startTime = DateTime.Now;
+            double periodTime = getPeriodTime();
+
+            while ((DateTime.Now - startTime).TotalSeconds < periodTime) {
+                List<int> res = new List<int>();
+                get_primes7(10000000, res);
+                Console.Write("Found {0} prime numbers.\n", res.Count);
+            }
+        }
+    }
+}

dotnet/project.json

@@ -0,0 +1,19 @@
+{
+  "version": "1.0.0-*",
+  "buildOptions": {
+    "debugType": "portable",
+    "emitEntryPoint": true
+  },
+  "dependencies": {},
+  "frameworks": {
+    "netcoreapp1.0": {
+      "dependencies": {
+        "Microsoft.NETCore.App": {
+          "type": "platform",
+          "version": "1.0.1"
+        }
+      },
+      "imports": "dnxcore50"
+    }
+  }
+}