Example test case explanation

#1

Can you please explain the given example test case how it arrives to max 13?

#2

hi shubham hint video for the same question is provided in the course

algorithm is

Take input N, M, K, S.
Take input 2 - D matrix of size N x M.
Put a loop on the array starting from 0 - 0 index to (N - 1) - (M - 1).
check if the Strength is lower than the threshold viz, K, print "No" and return.
otherwise,
    if character is '*', add 5 to the strength.
    else if, character is '.' , subtract 2 from the strength.
    else, if character is '#', break.
If you are not in the last column, decrement strength by 1.
After the loop, print 'Yes' and strength separated by a new line.
#3

Thanks. It’s done. It is written maximum strength in the problem and not strength.