Please someone help me to understand this code???

Question

I AM FACING THIS CODE AGAIN AND AGAIN IN EVERY CHALLENGE!!
https://code.sololearn.com/cb32eaYyBrLg/?ref=app

Answer 1

hi,
code is wrong bro
u have add the elements in d[] list but u have written the value y

def f(x):
d=[]
for i in range(x):
y= i+2
d.append(y)
return y
z= 3
w=f(z)
print(sum(w))

u have return the value y to w=f(z) which will return 4 as per ur code.
if u try to sum(4) then it will throw int object cannot be iterable.

so what u can do is return d[] to w= f(z)
then perform sum operation

def f(x):
d=[]
for i in range(x):
y= i+2
d.append(y)
return d
z= 3
w=f(z)
print(sum(w))

Which will print sum 9.

Answer 2

okk thanks @nanda balkrishnan

Answer 3

welcome bro!

Answer 4

can u upvote my question??
i upvoted urs too!!

Answer 5

I'm pretty sure that function should return d - otherwise you just get an error that "int is not iterable".

Now for the explanation:
-the function iterates over the values from 0 to x-1
-for each value i, we compute i+2 and append that to a list
-we return the resulting list from the function
-in the end, we calculate the sum of all elements in the list

In our example, we are calling f(3), which returns the following list:
[2,3,4]
And the sum of those numbers is 9.

Answer 6

thanks @bogdan sass