-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathe6.py
More file actions
21 lines (20 loc) · 713 Bytes
/
e6.py
File metadata and controls
21 lines (20 loc) · 713 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
# Project Euler: Problem 6
# Sum square difference
#
# 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 = 55**2 = 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: 25,164,150
def difsumsqr(num):
sumSqr = 0
sqrSum = 0
for n in range(1, num + 1):
sumSqr = sumSqr + n * n
sqrSum = sqrSum + n
return sqrSum * sqrSum - sumSqr