CF1807B.Grab the Candies

普及/提高-

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题目描述

Mihai and Bianca are playing with bags of candies. They have a row aa of nn bags of candies. The ii -th bag has aia_i candies. The bags are given to the players in the order from the first bag to the nn -th bag.

If a bag has an even number of candies, Mihai grabs the bag. Otherwise, Bianca grabs the bag. Once a bag is grabbed, the number of candies in it gets added to the total number of candies of the player that took it.

Mihai wants to show off, so he wants to reorder the array so that at any moment (except at the start when they both have no candies), Mihai will have strictly more candies than Bianca. Help Mihai find out if such a reordering exists.

输入格式

The first line of the input contains an integer tt ( 1t10001 \leq t \leq 1000 ) — the number of test cases.

The first line of each test case contains a single integer nn ( 1n1001 \leq n \leq 100 ) — the number of bags in the array.

The second line of each test case contains nn space-separated integers aia_i ( 1ai1001 \leq a_i \leq 100 ) — the number of candies in each bag.

输出格式

For each test case, output "YES" (without quotes) if such a reordering exists, and "NO" (without quotes) otherwise.

You can output the answer in any case (for example, the strings "yEs", "yes", "Yes" and "YES" will be recognized as a positive answer).

输入输出样例

  • 输入#1

    3
    4
    1 2 3 4
    4
    1 1 1 2
    3
    1 4 3

    输出#1

    YES
    NO
    NO

说明/提示

In the first test case, Mihai can reorder the array as follows: [4,1,2,3][4, 1, 2, 3] . Then the process proceeds as follows:

  • the first bag has 44 candies, which is even, so Mihai takes it — Mihai has 44 candies, and Bianca has 00 .
  • the second bag has 11 candies, which is odd, so Bianca takes it — Mihai has 44 candies, and Bianca has 11 .
  • the third bag has 22 candies, which is even, so Mihai takes it — Mihai has 66 candies, and Bianca has 11 .
  • the fourth bag has 33 candies, which is odd, so Bianca takes it — Mihai has 66 candies, and Bianca has 44 .

Since Mihai always has more candies than Bianca, this reordering works.

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