/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
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// Package aliasmethod implements alias-method algorithm load balance strategy.
// Alias Method: https://en.wikipedia.org/wiki/Alias_method
// It needs O(n) time and O(n) memory to initialize and O(1) time to generate a random number.
package aliasmethod // weighted random with alias-method algorithm