modules

Question

What is the output of this code?
def func(x):
res = 0
for i in range(x):
res += i
return res

print(func(4))

how we got the output as 6?

Answer 1

The for loop will run from 0 to 3 as the range is till 4.
Initialally, the i is 0.
Then i will become 1. 1 is added to result
Then i will become 2. 2 is added to result.
Similarly i will become 3. Now 3 is added to the result.
So result will be 0+1+2+3 i.e. 6

Answer 2

The output is 4.

It is 4 because the for loop is executed 4 times. Each time adding 1 to the variable "res" which starts at 0.

If you want 6 as the output, either make rs == 2 or x ==6

Answer 3

True, read it as res += 1