Why isn't this code working ?

Question

How did sum in the code turn it zero.
https://code.sololearn.com/czz9PXvpLdvm/?ref=app

Answer 1

It working fine..
Sum is not turning 0 also...
What is you expected output?

Answer 2

Sum2 increases every loop

Answer 3

I wanted to solve the project euler question sum square difference. My expected output is the difference between the sum of squares below 100 and the square of sums below 100

Answer 4

I don't understanding squires of sums below 100.
Is it not like pow(1+2+3...+99 , 2)? Joseph Oritseweyinmi

Answer 5

Make input 101 and print sum2*sum2 -sum , problems asks what is the difference between (1+2+3...)**2 and 1+4+9+16+25...

Answer 6


 
Sum square difference
 
Problem 6
The sum of the squares of the first ten natural numbers is,
12+22+...+102=385
The square of the sum of the first ten natural numbers is,
(1+2+...+10)2=552=3025
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025−385=2640.
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.

Answer 7

Yes. That works fine.