Java实现的计算最大下标距离算法示例

public static int maxindexdistance(int A[]) {
    boolean[] isDes = new boolean[A.length];
    int min = A[0];
    isDes[0] = true;
    for (int i = 0; i < A.length; i++) {
      if (A[i] < min) {
        isDes[i] = true;
        min = A[i];
      }
    }
    int maxdis = 0;
    int i = A.length - 1;
    int j = A.length - 1;
    System.out.println(Arrays.toString(isDes));
    while (i >= 0) {
      while (isDes[i] == false) {
        i--;
      }
      while (j > i && A[j] <= A[i]) {
        j--;
      }
      if ((j - i) > maxdis) {
        maxdis = j - i;
      }
      i--;
    }
    return maxdis;
}