A13218 | Array with Odd Sum

You are given an array $a$ consisting of $n$ integers.

In one move, you can choose two indices $1 \le i, j \le n$ such that $i \ne j$ and set $a_i := a_j$ . You can perform such moves any number of times (possibly, zero). You can choose different indices in different operations. The operation := is the operation of assignment (i.e. you choose $i$ and $j$ and replace $a_i$ with $a_j$ ).

Your task is to say if it is possible to obtain an array with an odd (not divisible by $2$ ) sum of elements.

You have to answer $t$ independent test cases.

The first line of the input contains one integer $t$ ( $1 \le t \le 2000$ ) — the number of test cases.

The next $2t$ lines describe test cases. The first line of the test case contains one integer $n$ ( $1 \le n \le 2000$ ) — the number of elements in $a$ . The second line of the test case contains $n$ integers $a_1, a_2, \dots, a_n$ ( $1 \le a_i \le 2000$ ), where $a_i$ is the $i$ -th element of $a$ .

It is guaranteed that the sum of $n$ over all test cases does not exceed $2000$ ( $\sum n \le 2000$ ).

For each test case, print the answer on it — "YES" (without quotes) if it is possible to obtain the array with an odd sum of elements, and "NO" otherwise.