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479.py
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executable file
·56 lines (44 loc) · 1.11 KB
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#!/usr/bin/env python
#-*- coding:utf-8 -*-
# FileName: 479.py
#
# Description:
#
# Version: 1.0
# Created: 2018-07-18 09:34:57
# Last Modified: 2018-07-19 09:00:08
# Revision: none
# Compiler: gcc
#
# Author: zt ()
# Organization:
def CheckPalindrome(v):
if v < 10:
return True
if v % 10 == 0:
return False
back = 0
while v > back:
back = back * 10 + v % 10
v = v // 10
return (v == back) or (back // 10 == v)
def largestPalindrome(n):
n = n - 1
temp = 0
k = (n + 1) // 2
for i in range((10**k - 1) * 10**(n - k + 1), 10**(n + 1)):
for j in range((10**k - 1) * 10**(n - k + 1), 10**(n + 1)):
if CheckPalindrome(i * j):
temp = max(temp, i * j)
print(i, j, i * j, temp)
print(temp % 1337)
return temp % 1337
def largestPalindrome2(n):
temp = 0
for i in range(10**(2 * n - 1), 10**(2 * n - 2),-1):
if CheckPalindrome(i):
temp = i
print(temp)
return temp % 1337
# largestPalindrome(7)
largestPalindrome2(4)