Angry professor problem solution

This problem is taken from Hakerrank :

A Discrete Mathematics professor has a class of N$N$ students. Frustrated with their lack of discipline, he decides to cancel class if fewer than K$K$ students are present when class starts.

Given the arrival time of each student, determine if the class is canceled.

Input Format

The first line of input contains T$T$, the number of test cases.

Each test case consists of two lines. The first line has two space-separated integers, N$N$ (students in the class) and K$K$ (the cancelation threshold).
The second line contains N$N$ space-separated integers (a1,a2,…,aN$a_1,a_2,\dots ,a_N$) describing the arrival times for each student.

Note: Non-positive arrival times (ai≤0$a_i\le 0$) indicate the student arrived early or on time; positive arrival times (ai>0$a_i>0$) indicate the student arrived ai$a_i$ minutes late.

Output Format

For each test case, print the word YES if the class is canceled or NO if it is not.

Constraints

·         1≤T≤10$1\le T\le 10$

·         1≤N≤1000$1\le N\le 1000$

·         1≤K≤N$1\le K\le N$

·         −100≤ai≤100,where i∈[1,N]

Note
If a student arrives exactly on time (ai=0)$(a_i=0)$, the student is considered to have entered before the class started.

Sample Input

2

4 3

-1 -3 4 2

4 2

0 -1 2 1

Sample Output

YES

NO

Explanation

For the first test case, K=3$K=3$. The professor wants at least 3$3$ students in attendance, but only 2$2$ have arrived on time (−3$-3$ and −1$-1$). Thus, the class is canceled.

For the second test case, K=2$K=2$. The professor wants at least 2$2$ students in attendance, and there are 2$2$ who have arrived on time (0$0$ and −1$-1$). Thus, the class is not canceled.

solution :

int main()

{

int a[10],i,n,k,t,c;

scanf("%d",&t);

while(t!=0)

{     c=0;

      scanf("%d%d",&n,&k);

            for(i=0;i<n;i++)

{

      scanf("%d",&a[i]);

}

      for(i=0;i<n;i++)

{

      if(a[i]<0||a[i]==0  )

      c++;

}

      if(c==k)

printf("NO\n");

else

printf("YES\n");

t--;

}

   return 0;

}