Double Pair Array

medium

Unknown

Question Solve Solutions

1. You are given an array(arr) of integers with even length N.
2. You have to tell if it is possible to re-order the given array such that for every i in range [0,N/2)
   arr[2*i + 1] = 2 * arr[2*i], this condition holds true.

Input Format

A number N arr1 arr2.. N numbers

Output Format

true/false

Constraints

1 &lt;= N &lt;= 10^4
-10^5 &lt;= arr[i] &lt;= 10^5

Example

Input

4
3 1 3 6

Output

false

Subdomain Visit Count

Related Questions

easy Is Prime easy Prime Till N easy Reverse Integer easy GCD easy Fibonacci easy Fib Till N easy Exit Point of a matrix easy Placing N Queen in a matrix easy Arranging Vowels And Consonants easy Addition Of Two Linked List easy Circular Linked List easy Sort The Absolute List easy Decimal Number From Binary Linked List easy Find the largest rectangle in a matrix easy Count Pairs Having Sum X easy Delete alternate nodes of linked list