i=0 x=0 while i<4: x+=i i+=1 print(x)

Question

Answer is 6...but I can't figure it out how it is 6... please can anyone explain

Answer 1

Lokesh
loop 0.
x+=0 -> x==0
i +=1 -> i ==1

loop 1.
x+=1 -> x==1
i +=1 -> i ==2

loop 2.
x+=2 -> x==3
i +=1 -> i ==3

loop 3.
x+=3 -> x==6
i +=1 -> i ==4

loop 4.
i not <4
loop breaks

x = 6

Answer 2

You have 4 iterations. So you have [([0+0]+1)+2]+3. That's 6.
I put every iteration in braces for better readability.