How to make for and while loops in Python to get the same answer?-CodePudding

this is my very first time asking a question on StackOverflow!

I am trying to write a code to know at what natural number the accumulated sum to the number becomes right before 10,000 using for and while loops in python.

a for loop,

accum_sum = 0
for n in range(10000):
if accum_sum > 10000:
   print(n-1)
   break

it gave me 140

and I was wondering how to write a code to get the same thing(140) by using a while loop ... this is what I tried but somehow it gave me a different answer. Can someone help me with this? I feel like I am lost

accum_sum = 0
while accum_sum < 10000:
n  = 1
accum_sum = accum_sum   n
if accum_sum > 10000:
    print(n-1)
    break

Thank you!

CodePudding user response：

In your code snippets:

As @canton7 pointed out, in for you are never adding num to accum_sum and hence it will always be zero
n is not defined before while, so you cannot increment it by 1 and will be thrown a NameError

Changing these and adding appropriate indentation should give you something like below.

Using for:

   sum = 0
   for num in range(0,10000):
       sum  = num
       if num > 10000:
           print('This is the number you want ', num-1)
           break

Using while:

   sum = 0
   num = 0
   while sum < 10000:
        num  = 1
        sum  = num
   print('This is the number you want ', num-1)

Both of these print 140.

References: