public StarrySkyTree(int size)
{
this.Length = size;
rootLength = 1 << (BitOperationsEx.MSB(size - 1) + 1);
lazy = new T[(rootLength << 1) - 1];
data = new T[(rootLength << 1) - 1];
Array.Fill(lazy, op.Identity);
Array.Fill(data, op.Identity);
}
public void BitOperationInt64(long input, int popCount, int msb, int lsb)
{
BitOperationsEx.PopCount(input).Should().Be(popCount);
BitOperationsEx.MSB(input).Should().Be(msb);
BitOperationsEx.LSB(input).Should().Be(lsb);
}