问题:

解答:

#include <iostream>
using namespace std;

#define SIZE 20

int Fill_array(double* arr, int len)
{
	
	int i = 0;
	for (i = 0; i < len; i++)
	{
		cout << "请输入值:";
		cin >> arr[i];
		if (cin.fail())
		{
			cout << "输入非法数字,结束输入!" << endl;
			break;
		}
	}
	return i;
}

void Show_array(double* arr, int len)
{
	cout << "数组元素为:" << endl;
	for (int i = 0; i < len; i++)
	{
		cout << arr[i] << "  ";
	}
	cout << endl;
}

void Reverse_array(double* arr, int len)
{
	int j = len - 1;
	for (int i = 0; i < j; i++, j--)
	{
		double temp = arr[i];
		arr[i] = arr[j];
		arr[j] = temp;
	}
}

int main()
{
	double array[SIZE];
	int size=0;
	size=Fill_array(array, SIZE);
	Show_array(array, size);
	Reverse_array(array, size);
	Show_array(array, size);
	Reverse_array(&array[1], size-2);
	Show_array(array, size);
	return 0;
}

运行结果:

考查点:

• 数组逆转

2024年8月30日20:46:04