[Tutor] Calculate hours

[Dave Angel]

On 01/22/2013 10:08 PM, Mitya Sirenef wrote:
> On 01/22/2013 09:52 PM, anthonym wrote:
>> Hello All,
>  >
>  > I originally wrote this program to calculate and print the employee
>  > with the most hours worked in a week. I would now like to change this
>  > to calculate and print the hours for all 8 employees in ascending
>  > order.
>  >
>  > The employees are named employee 0 - 8
>  >
>  > Any ideas?
>  >
>  > Thanks,
>  > Tony
>  >
>  > Code below:
>  >
>  >
>  >
>  > # Create table of hours worked
>  >
>  > matrix = [
>  > [2, 4, 3, 4, 5, 8, 8],
>  > [7, 3, 4, 3, 3, 4, 4],
>  > [3, 3, 4, 3, 3, 2, 2],
>  > [9, 3, 4, 7, 3, 4, 1],
>  > [3, 5, 4, 3, 6, 3, 8],
>  > [3, 4, 4, 6, 3, 4, 4],
>  > [3, 7, 4, 8, 3, 8, 4],
>  > [6, 3, 5, 9, 2, 7, 9]]
>  >
>  > maxRow = sum(matrix[0]) # Get sum of the first row in maxRow
>  > indexOfMaxRow = 0
>  >
>  > for row in range(1, len(matrix)):
>  > if sum(matrix[row]) > maxRow:
>  > maxRow = sum(matrix[row])
>  > indexOfMaxRow = row
>  >
>  > print("Employee 7", indexOfMaxRow, "has worked: ", maxRow, "hours")
>
>
> There is an issue with this program: it omits the first row.

No, it doesn't.  The OP fills in item 0 in the initial values for maxRow 
and indexOfMaxRow.  Then he figures he can skip that row in the loop, 
which is correct.

>
> It's better to use enumerate, e.g.:
>
> for n, row in enumerate(matrix): ...
>
>
> To make the change you need, use list comprehension to make sums of all
> rows, sort it (using list sort method); iterate over it using
> enumerate() and print out "employee N, sum of hours:"
>
>
> HTH, -m
>
>


-- 
DaveA