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Help in Problem Asked in Google Online Assessment 2022 (23-07-2022)

Revision en1, by EmilyBloom, 2022-07-24 08:24:35

You are given a matrix A having N rows and M columns. The rows are numbered from 1 to N from top to bottom and columns are numbered from 1 to M from left to right. You are allowed to move right and down only, that is if you are at cell (i, j), then you can move to (i+1, j) and (i, j+1). You are not allowed to move outside the matrix.

Your task is to find the number of good path starting from (1,1) to (N,M). Good Path: If the sum of all the elements that lie in the path is divisble by K, then the path is considered as good.

Constraints 1 <= N, M <= 16 1 <= Ai, K <= 10^18

Sample Input 3 3 23 1 2 3 4 5 6 7 8 9

Sample Output 1

Explanation N = 3, M = 3, K = 23 1->2->5->6->9, Sum is 23 which is divisble by 23 and there is only one good path in the above sample matrix, So the output is 1.

Tags google, help, dp

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en3 English EmilyBloom 2022-07-24 08:31:11 12
en2 English EmilyBloom 2022-07-24 08:25:43 157
en1 English EmilyBloom 2022-07-24 08:24:35 886 Initial revision (published)