输入一组数据，将最大数与最小数互换，并输出互换后的数

Question

 

Answer 1

#include <stdio.h>

void main()
{
	int arr[100], num, maxIndex=0, minIndex=0;
	printf("请输入值的个数：");
	scanf_s("%d", &num);
	printf("请输入值：");
	for (int i = 0; i < num; i++)
		scanf_s("%d", &arr[i]);
	int max = arr[0], min = arr[0];
	for (int i = 0; i < num; i++)
	{
		if (max < arr[i])
		{
			max = arr[i];
			maxIndex = i;
		}
		if (min > arr[i])
		{
			min = arr[i];
			minIndex = i;
		}
	}
	arr[maxIndex] = min;
	arr[minIndex] = max;


	printf("交换后的数据：");
	for (int i = 0; i < num; i++)
		printf(" %d", arr[i]);
	getchar();
	getchar();
}