MATLAB: How will I collect/pick only certain values from a matrix, whose co-ordinates (which row and column to be picked) is specified in another vector

Question

I have two vectors say "a" and "b" of size 1by35 which stores certain values that specify the row and column number. I have another matrix say "c" of size 200by50 which has some values throughout. Now I want to pick/collect only the numbers form the matrix "c" that is specified in the vector "a" and "b". For example, let's say a = [10 56 47 30 25 67 ….. 98] and b = [49 32 21 46 17 27 ….. 23]. The elements in the vector "a" denotes the row and "b" denotes the column. Now I want to pick the element from the matrix "c" (which is a 200by50 array) that corresponds to 10th row and 49th column, 56th row and 32nd column etc..up to 98th row and 23rd column. I have to eventually get again a 1by35 vector that has the collected elements from the matrix "c". How can I code this ?

Answer 1

res=c(sub2ind(size(c),a,b));