希尔排序完整c语言代码

以下是希尔排序的完整C语言代码：

#include <stdio.h>

void shellSort(int arr[], int n) {
    int i, j, gap, temp;
    for (gap = n / 2; gap > 0; gap /= 2) {
        for (i = gap; i < n; i++) {
            temp = arr[i];
            for (j = i; j >= gap && arr[j - gap] > temp; j -= gap) {
                arr[j] = arr[j - gap];
            }
            arr[j] = temp;
        }
    }
}

int main() {
    int arr[] = {12, 34, 54, 2, 3}, i;
    int n = sizeof(arr) / sizeof(arr[0]);

    printf("Array before sorting: \n");
    for (i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }

    shellSort(arr, n);

    printf("\nArray after sorting: \n");
    for (i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
    return 0;
}