This is an ok problem. Now, add more test cases.
surface of a spherical planet
Determine the length of a string of characters
Transpose of matrix
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
first element of matrix
Find the last digit
Calculating selling price
find the mean of all elements in a matrix
Find remainder when x is divided by 3
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