qfedu-basic-level/day9/case1.cpp

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2023-06-26 08:34:05 +08:00
// 接收一个数值数组,实现数组中元素值从小到大排序
// 例如:输入 3 2 1 5 4
// 输出 1 2 3 4 5
#include <iostream>
using namespace std;
void show(int arr[], int size)
{
int i = 0;
while (i < size)
{
cout << arr[i] << "\t";
i++;
}
cout << endl;
}
void sort(int arr[], int size)
{
for (int i = 0; i < size - 1; i++)
{
for (int j = 0; j < size - i - 1; j++)
{
if (arr[j] > arr[j + 1])
{
arr[j] = arr[j] ^ arr[j + 1];
arr[j + 1] = arr[j] ^ arr[j + 1];
arr[j] = arr[j] ^ arr[j + 1];
}
}
}
}
int main()
{
// 从键盘输入 5 个数值
int arr[5];
for (int i = 0; i < 5; i++)
{
cout << "请输入第" << i + 1 << "个数:";
cin >> arr[i];
}
cout << endl;
cout << "排序前:" << endl;
show(arr, 5);
sort(arr, 5);
cout << "排序后:" << endl;
show(arr, 5);
return 0;
}