public static LazySegmentTree Create(List <int> values, ISegmentTreeOperation operation)
{
if (values == null)
{
throw new ArgumentNullException("values");
}
return(new LazySegmentTree(values, operation));
}
protected LazySegmentTree(List <int> values, ISegmentTreeOperation operation)
{
this.operation = operation;
count = values.Count;
size = Utils.NextPowerOfTwo(values.Count);
tree = new int[(size << 1) - 1];
lazy = new int[(size << 1) - 1];
BuildTree(values, 0, 0, size - 1);
}