Tutorial B2 o.a. loop teamplates
4 important questions on Tutorial B2 o.a. loop teamplates
To really copy a list in Python, use a slice for the full length of the original:
def square_all (p_arr):
arr = p_arr[:] # copy elements
for i in range(len(arr)):
arr[i] = arr[i] * arr[i]
return arr
anders verwijs je alleen naar hetzelfde, naar een positie waar het is opgeslagen.
Aliasing (a,b,c)
b = a
a[1] = 3
a # [0, 3, 2] as expected
b # [0, 3, 2] perhaps not expected
c = [3, 4, 5]
a = c
a # [3, 4, 5] -- now alias of c
b # [0, 3, 2] -- no more aliasing with a
“maximum template” and “minimum template”
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The summing template adds all values from a series together:
sum = 0
for i in range(len(arr)):
elem = arr[i]
sum += elem
#answer in variable: sum
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
