RohitKadam244
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19of 19 votes
AnswersYou have a grid of size N x M. Rows of the grid are numbered from 1 to N from top to bottom and columns of the grid are numbered from 1 to M from left to right. So, top-left corner is indexed as (1,1) and bottom-right corner is indexed as (N,M).
- RohitKadam244 in India
Cost of visiting a cell at index (i,j) is denoted by C[i][j]. Cost of changing the direction of your facing at index (i,j) is denoted by P[i][j].
You have to start from cell (1,1) and reach to cell (N,M) with minimum cost. At cell (1,1), you can either face towards 'Right' or face towards 'Down'. At any point of time, you can either face 'Right' or face 'Down'.
There are 2-types of moves allowed:
1. Move one cell towards the facing direction i.e. if you are facing 'Right', you can move one cell 'Right' or if you are facing 'Down', you can move one cell 'Down'. The cost of visiting cell (i,j) will be C[i][j].
2. Change the direction of facing i.e. if you are facing 'Right', you can now face 'Down' or if you are facing 'Down', you can now face 'Right'. The cost of changing the facing direction at cell (i,j) will be P[i][j].
Find the minimum cost to reach (N,M) after starting from (1,1).
Constraints:
1 <= T <= 3
1 <= N,M <= 1000
1 <= C[i][j], P[i][j] <= 1000
Input Format:
First line of each testfile contains T, the number of test cases.
In each testcase, First line contains two inetgers N and M denoting the dimensions of the grid.
Next N lines contains M integers each denoting the cost matrix C.
Next N lines contains M integers each denoting the cost matrix P.| Report Duplicate | Flag | PURGE
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