代码拉取完成,页面将自动刷新
using System.Collections.Generic;
using System.Numerics;
namespace Algorithms.Sequences;
/// <summary>
/// <para>
/// Number of halving and tripling steps to reach 1 in the '3n+1' problem.
/// </para>
/// <para>
/// Wikipedia: https://en.wikipedia.org/wiki/Collatz_conjecture.
/// </para>
/// <para>
/// OEIS: https://oeis.org/A006577.
/// </para>
/// </summary>
public class ThreeNPlusOneStepsSequence : ISequence
{
/// <summary>
/// Gets sequence of number of halving and tripling steps to reach 1 in the '3n+1' problem.
/// </summary>
public IEnumerable<BigInteger> Sequence
{
get
{
BigInteger startingValue = 1;
while (true)
{
BigInteger counter = 0;
BigInteger currentValue = startingValue;
while (currentValue != 1)
{
if (currentValue.IsEven)
{
currentValue /= 2;
}
else
{
currentValue = 3 * currentValue + 1;
}
counter++;
}
yield return counter;
startingValue++;
}
}
}
}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。