public void TestMethod_NumberOfPrimesByHundred_200()
{
const int source = 200;
Dictionary <int, int> expected = new Dictionary <int, int> {
{ 100, 25 }, { 200, 21 }
};
Dictionary <int, int> result = FunctionsPrimes.NumberOfPrimesByHundred(source);
Assert.IsTrue(AssertDictionaryAreEqualed(result, expected));
}
public void TestMethod_NumberOfPrimesByHundred_900()
{
const int source = 900;
Dictionary <int, int> expected = new Dictionary <int, int> {
{ 100, 25 }, { 200, 21 }, { 300, 16 }, { 400, 16 }, { 500, 17 }, { 600, 14 }, { 700, 16 }, { 800, 14 }, { 900, 15 }
};
Dictionary <int, int> result = FunctionsPrimes.NumberOfPrimesByHundred(source);
Assert.IsTrue(AssertDictionaryAreEqualed(result, expected));
}
private static void Main()
{
Action <string> display = Console.WriteLine;
var listOfEcart = FunctionsPrimes.GetEcartBetweenPrimes(2, 200000);
foreach (int number in listOfEcart)
{
Console.Write($"{number} ");
}
display($"the greatest difference between two primes is : {listOfEcart.Max(n => n)}");
display("Prime numbers by hundred:");
foreach (var kvp in FunctionsPrimes.NumberOfPrimesByHundred(1000))
{
display($"{kvp.Key} - {kvp.Value}");
}
display(string.Empty);
display("Prime numbers by thousand:");
display(string.Empty);
foreach (var kvp in FunctionsPrimes.NumberOfPrimesByNthHundred(9000, 1000))
{
display($"{kvp.Key} - {kvp.Value}");
}
//int count = 0;
//for (int i = 3; i <= int.MaxValue - 4; i += 2)
//{
// if (FunctionsPrimes.IsPrimeTriplet(i))
// {
// count++;
// }
// display($"Number of prime found: {count} and i: {i}");
//}
display("no triplet prime from 3 to 2147483643");
for (BigInteger i = BigInteger.Parse("2147483643"); i <= BigInteger.Parse("2147483699"); i += 2)
{
BigInteger squareRoot = BigInteger.Pow(i, (int)BigInteger.Log(i)); // wrong square root
display($"Big Integer is : {i} and square root is = {squareRoot}");
}
display("Pas de prime triplet between 2147483643 and 3147483643");
int count = 0;
List <string> result = new List <string>();
for (BigInteger i = BigInteger.Parse("3147483643"); i <= BigInteger.Parse("4147483643"); i += 2)
{
if (FunctionsPrimes.IsPrimeTriplet(i))
{
count++;
result.Add(i.ToString());
}
display($"Number of prime found: {count} and i = {i}");
}
if (result.Count > 0)
{
foreach (string number in result)
{
display($"Prime triplet found : {number}");
}
}
var timestamp = DateTime.Now.ToFileTime();
display($"time stamp using ToFileTime : {timestamp.ToString()}");
string timeStamp = GetTimestamp(DateTime.Now);
display($"time stamp yyyymmddhh : {timestamp.ToString()}");
display("Press any key to exit");
Console.ReadKey();
}