# Leetcode 747 - Largest Number At Least Twice of Others

`Note:`

- Easy question. Get max and its index.
- Sort the array, and because every element is unique, we can compare max and it’s prev element.

`Question:`

You are given an integer array `nums`

where the largest integer is unique.

Determine whether the largest element in the array is at least twice as much as every other number in the array. If it is, return the index of the largest element, or return `-1`

otherwise.

`Example:`

1 | Input: nums = [3,6,1,0] |

`Code:`

1 | /** |