用选择排序法,对6个浮点数,这6个浮点数放在数组。从大到小,用c语言编程
时间: 2024-02-13 15:04:50 浏览: 123
好的,以下是使用选择排序法对6个浮点数从大到小排序的C语言代码:
```c
#include <stdio.h>
void selectionSort(float arr[], int n) {
int i, j, maxIndex;
float temp;
for (i = 0; i < n - 1; i++) {
maxIndex = i;
for (j = i + 1; j < n; j++) {
if (arr[j] > arr[maxIndex]) {
maxIndex = j;
}
}
if (maxIndex != i) {
temp = arr[maxIndex];
arr[maxIndex] = arr[i];
arr[i] = temp;
}
}
}
int main() {
float arr[6] = {3.14, 2.71, 1.618, 0.618, 1.414, 2.236};
int n = sizeof(arr) / sizeof(arr[0]);
int i;
printf("Original array:\n");
for (i = 0; i < n; i++) {
printf("%f ", arr[i]);
}
selectionSort(arr, n);
printf("\nSorted array in descending order:\n");
for (i = 0; i < n; i++) {
printf("%f ", arr[i]);
}
return 0;
}
```
输出结果为:
```
Original array:
3.140000 2.710000 1.618000 0.618000 1.414000 2.236000
Sorted array in descending order:
3.140000 2.710000 2.236000 1.618000 1.414000 0.618000
```
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