void shellsort1(int a[], int n) { int i, j, gap; for (gap = n / 2; gap > 0; gap /= 2) //步长 for (i = 0; i < gap; i++) //直接插入排序 { for (j = i + gap; j < n; j += gap) if (a[j] < a[j - gap]) { int temp = a[j]; int k = j - gap; while (k >= 0 && a[k] > temp) { a[k + gap] = a[k]; k -= gap; } a[k + gap] = temp; } } }
void shellsort3(int a[], int n) { int i, j, gap; for (gap = n / 2; gap > 0; gap /= 2) for (i = gap; i < n; i++) for (j = i - gap; j >= 0 && a[j] > a[j + gap]; j -= gap) Swap(a[j], a[j + gap]); }
时间: 2024-11-05 12:13:30