mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-10-07 06:09:28 +00:00
19 lines
611 B
Python
19 lines
611 B
Python
|
# -*- coding: utf-8 -*-
|
|||
|
|
'''
|
|||
|
|
Problem:
|
|||
|
|
The sum of the squares of the first ten natural numbers is,
|
|||
|
|
1^2 + 2^2 + ... + 10^2 = 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 N natural numbers and the square of the sum.
|
|||
|
|
'''
|
|||
|
|
|
|||
|
|
suma = 0
|
|||
|
|
sumb = 0
|
|||
|
|
n = int(input())
|
|||
|
|
for i in range(1,n+1):
|
|||
|
|
suma += i**2
|
|||
|
|
sumb += i
|
|||
|
|
sum = sumb**2 - suma
|
|||
|
|
print sum
|