Problem:
Score: 300 points

Problem Statement

M-kun is a student in Aoki High School, where a year is divided into N terms.

There is an exam at the end of each term. According to the scores in those exams, a student is given a grade for each term, as follows:

For the first through (K-1)-th terms: not given.

For each of the K-th through N-th terms: the multiplication of the scores in the last K exams, including the exam in the graded term.

M-kun scored A_i in the exam at the end of the i-th term.

For each i such that K+1 \leq i \leq N, determine whether his grade for the i-th term is strictly greater than the grade for the (i-1)-th term.

Constraints

2 \leq N \leq 200000

1 \leq K \leq N-1

1 \leq A_i \leq 10^{9}

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N K
A_1 A_2 A_3 \ldots A_N

Output

Print the answer in N-K lines.

The i-th line should contain Yes if the grade for the (K+i)-th term is greater than the grade for the (K+i-1)-th term, and No otherwise.

Sample Input 1

5 3
96 98 95 100 20

Sample Output 1

Yes
No

His grade for each term is computed as follows:

3-rd term: (96 \times 98 \times 95) = 893760

4-th term: (98 \times 95 \times 100) = 931000

5-th term: (95 \times 100 \times 20) = 190000

Sample Input 2

3 2
1001 869120 1001

Sample Output 2

No

Note that the output should be No if the grade for the 3-rd term is equal to the grade for the 2-nd term.

Sample Input 3

15 7
3 1 4 1 5 9 2 6 5 3 5 8 9 7 9

Sample Output 3

Yes
Yes
No
Yes
Yes
No
Yes
Yes

Solution in C# (.NET Core 3.1.201) (judge verdict: Runtime Error)

using System;

namespace marks
{
    class Program
    {
        static void Main(string[] args)
        {
            int N, K;
            int[] A = new int[100000001];

            string inD0 = Console.ReadLine();
            string[] cngD0 = inD0.Split(' ');

            N = int.Parse(cngD0[0]);
            K = int.Parse(cngD0[1]);

            string inD1 = Console.ReadLine();
            string[] cngD1 = inD1.Split(' ');

            for (int i = 0; i <= N - 1; i++)
            {
                A[i] = int.Parse(cngD1[i]);
            }

            for(int i = K - 1;i < N - 1; i++)
            {
                long k_j = 1;
                long k_j_1 = 1;
                for(int j = i;0 < i+j-K ; j--)
                {
                    k_j = k_j * A[j];
                    k_j_1 = k_j_1 * A[j+1];
                }
                if(k_j < k_j_1)
                {
                    Console.WriteLine("Yes");

                }else
                {
                    Console.WriteLine("No");

                }

            }

        }
    }
}