ICODEBROKER

■ 칵테일 정렬하기 예제

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using System;

int[] array = new int[] { 10, 50, 30, 20, 90, 80, 15, 20 };

CocktailSort1<int>(array);

for(int i = 0; i < array.Length; i++)

{

    Console.Write(array[i]);

    Console.Write(" ");

}

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■ 칵테일 정렬하기

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using System;

#region 칵테일 정렬하기 1 - CocktailSort1<T>(itemArray)

/// <summary>

/// 칵테일 정렬하기 1

/// </summary>

/// <typeparam name="T">항목 타입</typeparam>

/// <param name="itemArray">항목 배열</param>

public void CocktailSort1<T>(T[] itemArray) where T : IComparable

{

    bool swapped;

    do

    {

        swapped = false;

        for(int i = 0; i < itemArray.Length - 1; i++)

        {

            if(itemArray[i].CompareTo(itemArray[i + 1]) > 0)

            {

                T temporaryItem = itemArray[i];

                itemArray[i    ] = itemArray[i + 1];

                itemArray[i + 1] = temporaryItem;

                swapped = true;

            }

        }

        if(!swapped)

        {

            break;

        }

        swapped = false;

        for(int i = 0; i < itemArray.Length - 1; i++)

        {

            if(itemArray[i].CompareTo(itemArray[i + 1]) > 0)

            {

                T temporaryItem = itemArray[i];

                itemArray[i    ] = itemArray[i + 1];

                itemArray[i + 1] = temporaryItem;

                swapped = true;

            }

        }

    }

    while(swapped);

}

#endregion

#region 칵테일 정렬하기 2 - CocktailSort2<T>(itemArray)

/// <summary>

/// 칵테일 정렬하기 2

/// </summary>

/// <typeparam name="T">항목 타입</typeparam>

/// <param name="itemArray">항목 배열</param>

public void CocktailSort2<T>(T[] itemArray) where T : IComparable

{

    bool swapped;

    int  start = (-1);

    int  end   = itemArray.Length - 1;

    do

    {

        swapped = false;

        start++;

        for(int i = start; i < end; i++)

        {

            if(itemArray[i].CompareTo(itemArray[i + 1]) > 0)

            {

                T temporaryItem = itemArray[i];

                itemArray[i    ] = itemArray[i + 1];

                itemArray[i + 1] = temporaryItem;

                swapped = true;

            }

        }

        if(!swapped)

        {

            break;

        }

        swapped = false;

        end--;

        for(int i = end; i >= start; i--)

        {

            if(itemArray[i].CompareTo(itemArray[i + 1]) > 0)

            {

                T temporaryItem = itemArray[i];

                itemArray[i    ] = itemArray[i + 1];

                itemArray[i + 1] = temporaryItem;

                swapped = true;

            }

        }

    }

    while(swapped);

}

#endregion

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