COVID-19 is spreading rapidly and has become a pandemic in no time. Starting from a few countries, it is expanding indefinitely.
Initially, there are K countries (numbered 0 to K-1) – with the ith country (0 < i < K) having Si COVID-19 viruses.
The no. of COVID-19 viruses in the Nth country (N > K) is given by: -
SN = SN-1 + SN-2 + SN-3 + … + SN-K
This sequence continues infinitely and we call it - “The COVID-19 Sequence”.
You need to answer Q queries. In each query, you are given an integer N. You need to find the value of SN modulo 2. Can you answer them quickly?
Input:
- The first line of the input contains a single integer T denoting the number of test cases. The description of T test cases follows.
- The first line contains two space-separated integers – K , Q.
- The next line contains K space-separated integers Si .
- The ith of the next Q lines contains a single integer N, describing the query.
Output:
For each query, print a single line containing one integer – the value of SN modulo 2.
Constraints:
- 1 < T < 5
- 1 < K < 1000
- 1 < Q < 105
- 0 < Si < 109
- 0 < N < 10100000
- Sum of D.Q (D = no. of digits in N) over all test cases does not exceed 106
Test Files:
Test File #1 (10 points):
- K = 2
- 0 < N < 109
- So = 0
- S1 = 1
Test File #2 (10 points):
- K = 2
- 0 < N < 109
Test File #3 (10 points):
- K = 3
- 0 < N < 109
Test File #4 (30 points):
- 0 < N < 109
Test File #5 (40 points): original constraints
Please login to use the editor
You need to be logged in to access the code editor
Loading...
Please wait while we load the editor
Login to unlock the editorial