随机生成1024个数，存入一段内存，用指针实现获取1024个数的最大数地址，最小数地址

题目：随机生成1024个数，存入一段内存，用指针实现获取1024个数的最大数地址，最小数地址，具体实现如下：

#include<stdlib.h>
#include<stdio.h>
#include<time.h>
int FindMaxMinByIndex(int * pInput, int nLen, int ** ppMax, int ** ppMin)
{
	if (!ppMax)
	{
		return 0;
	}
	if (!ppMin)
	{
		return 0;
	}
	if (!pInput)
	{
		return 0;
	}
	int i = 0;
	int * pMax = &pInput[0];
	int * pMin = &pInput[0];
	for (i = 0; i < nLen; i++)
	{
		if (*pMax < pInput[i])
		{
			pMax = pInput + i;
		}
		if (*pMin > pInput[i])
		{
			pMin = pInput + i;
		}
	}
	*ppMax = pMax;
	*ppMin = pMin;
	return 1;
}
int FindMaxMinByPtr(int * pInput, int nLen, int ** ppMax, int ** ppMin)
{
	if (!pInput || !ppMax || !ppMin)
	{
		return 0;
	}
	int * pCurPtr = pInput;
	int * pEndPtr = pInput + nLen;
	int * pMax = pInput;
	int * pMin = pInput;
	for (; pCurPtr < pEndPtr; pCurPtr++)
	{
		if (*pMax <*pCurPtr)
		{
			pMax = pCurPtr;
		}
		if (*pMin > *pCurPtr)
		{
			pMin = pCurPtr;
		}
	}
	*ppMax = pMax;
	*ppMin = pMin;
	return 1;
}
int main()
{
	int Data[1024] = { 0 };
	int i = 0;
	srand(time(NULL));
	for (i = 0; i < 1024; i++)
	{
		Data[i] = rand() % 10;
	}
	printf("数据：\n");
	for (i = 0; i < 1024; i++)
	{
		printf("%d	", Data[i]);
	}
	printf("\n");
	int * pMax = NULL;
	int * pMin = NULL;
	if (FindMaxMinByIndex(Data, 1024, &pMax, &pMin) == 0)
	{
		printf("查找失败.\n");
	}
	else
	{
		printf("最大数：%d,最小数:%d,最大数地址：%p,最小数地址：%p\n", *pMax, *pMin, pMax, pMin);
	}
	if (FindMaxMinByPtr(Data, 1024, &pMax, &pMin) == 0)
	{
		printf("查找失败.\n");
	}
	else
	{
		printf("最大数：%d,最小数:%d,最大数地址：%p,最小数地址：%p\n", *pMax, *pMin, pMax, pMin);
	}

	system("pause");
	return 0;
}

运行效果如图1所示：

图1 运行效果