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using System;
using System.Collections.Generic;
using System.Linq;
public class RandomFill<T>
{
private T[] values;
private int idx;
public void Set(IEnumerable<T> values)
{
if (this.values == null)
{
this.values = values.ToArray<T>();
this.values.Shuffle<T>();
this.idx = this.values.Length - 1;
}
}
public T Get()
{
if (this.idx < 0)
{
this.values.Shuffle<T>();
this.idx = this.values.Length - 1;
}
T[] array = this.values;
int num = this.idx;
this.idx = num - 1;
return array[num];
}
}
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