Java implements half sorting algorithm

Binary insertion sort is an improvement to the insertion sort algorithm. During the sorting algorithm, elements are continuously inserted into the previously sorted sequence. Since the first half is a sorted sequence, we don't have to search for the insertion point in sequence. We can use the half search method to speed up the search for the insertion point.

public static void halfSort(int[] array) {
    int low, high, mid;
    int tmp, j;
    for (int i = 1; i < array.length; i++) {
      tmp = array[i];
      low = 0;
      high = i - 1;
      while (low <= high) {
        mid = low + (high - low) / 2;
        if (array[mid] > tmp)
          high = mid - 1;
        else
          low = mid + 1;
      }
      for (j = i - 1; j > high; j--) {
        array[j + 1] = array[j];
      }
      array[high + 1] = tmp;
    }
  }

Schematic diagram of the half-sorting algorithm:

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