def run():
maximum = 999
palindrome = -1
i = maximum
while i > 0 and palindrome == -1:
j = 0
while i+j <= maximum-j:
if euler.isPalindrome((i+j)*(maximum-j)):
palindrome = (i+j)*(maximum-j)
j += 1
i -= 1
return palindrome
def run():
matches = set([])
limit = 10**8
for i in xrange(1, 7071):
j = 2
while True:
n = sumNConsecutiveSquares(i, j)
if n >= limit:
break
if euler.isPalindrome(n):
matches.add(n)
j += 1
return sum(matches)
from euler import isPalindrome
output = 0
m = 0
n = 0
for i in range(999, 100, -1):
for j in range(999, 100, -1):
result = i * j
if isPalindrome(result):
if output < result:
output = result
m = i
n =j
print output, m, n
from euler import isPalindrome
output = 0
m = 0
n = 0
for i in range(999, 100, -1):
for j in range(999, 100, -1):
result = i * j
if isPalindrome(result):
if output < result:
output = result
m = i
n = j
print output, m, n
def isLychrel(n):
for _ in range(1, 51):
n = reverseAndAdd(n)
if euler.isPalindrome(n):
return False
return True
def isPalindrome(n):
''' Determine if n is a palindrome. '''
digits = euler.digitize(n)
return euler.isPalindrome(digits)
def isLychrel(num):
for i in range(0, 50):
num += int(str(num)[::-1])
if e.isPalindrome(str(num)):
return True
return False