设有一个整数数组,写出求相等元素最多的元素的算法。

如题,输出可能为多个。

C# codes as below,

/// <summary>

/// Get the max-time duplicated numbers in the param array

/// </summary>

/// <param name="array">the param array</param>

static void GetMaxDuplicatedNumbers(int[] array)

{

//Create a number container

int[] duplicateResult = new int[GetMaxElementInArray(array)-GetMinElementInArray(array)+1];

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

{

duplicateResult[array[i]-GetMinElementInArray(array)]++;

}

int maxDuplicateTimes = GetMaxElementInArray(duplicateResult);

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

{

if (duplicateResult[i] == maxDuplicateTimes)

{

Console.WriteLine(i+GetMinElementInArray(array));

}

}

}

/// <summary>

/// Get the max element in the param array

/// </summary>

/// <param name="array">The param array</param>

/// <returns>The max element</returns>

static int GetMaxElementInArray(int[] array)

{

int result = array[0];

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

{

if (result < array[i])

{

result = array[i];

}

}

return result;

}

/// <summary>

/// Get the min element in the param array

/// </summary>

/// <param name="array">The param array</param>

/// <returns>The min element</returns>

static int GetMinElementInArray(int[] array)

{

int result = array[0];

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

{

if (result > array[i])

{

result = array[i];

}

}

return result;

}

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