A Discrete Mathematics professor has a class of students. Frustrated with their lack of discipline, he decides to cancel
class if fewer than some number of students are present when class starts. Arrival times go from on time (arrivalTime<=0)
to arrived late (arrivalTime>0).
Given the arrival time of each student and a threshhold number of attendees, determine if the class is canceled.
Input Format:
The first line of input contains t, the number of test cases.
Each test case consists of two lines.
The first line has two space-separated integers, n and k, the number of students (size of a) and the cancellation
threshold.
The second line contains n space-separated integers (a[1],a[2],a[3]....,a[n]) describing the arrival times for each student.
Note: Non-positive arrival times (a[i]<=) indicate the student arrived early or on time; positive arrival times (a[i]>0)
indicate the student arrived a[i] minutes late.
Constraints:
1. 1<=t<=10
2. 1<=n<=1000
3. 1<=k<=n
4. -100<=a[i]<=100
Output Format:
For each test case, print the word 'YES' if the class is canceled or 'NO' if it is not.
Sample input:
2
4 3
-1 -3 4 2
4 2
0 -1 2 1
Sample output:
YES
NO