By arranging the individuals based on the given directions, we can find that H is located third to the left of E. The relationships of left and right movements determine the correct placement around the circle.
Given an array \( A[n] \) such that:
\[ A[0] \to A[i] \text{ is in non-decreasing order}, \quad A[i+1] \to A[n] \text{ is in non-increasing order}. \]Find the time complexity to find \( A[i] \).
Given the matrix \( A = \begin{bmatrix} 1 & 2 \\ 2 & -1 \end{bmatrix} \), find \( A^8 \).