Find the element from matrix which is in 2nd row and 3rd column.
At a minimum, you should make this problem variable. For example, find the element at the ith row and jth column and define i and j in the test cases, which are passed along with the function.
Increment a number, given its digits
So many choices
Check if number exists in vector
Side of a rhombus
modulus of a number
first element of matrix
multiply an array by its position number
find the mean of all elements in a matrix
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