- 問題
Problem 4:Largest palindrome product
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.
Find the largest palindrome made from the product of two 3-digit numbers.
- 解答例
def isPalindromeNum(num): numStr = str(num) if numStr == numStr[::-1]: return 1 return 0 max = 0 for i in range(100, 1000): for j in range(100, 1000): if(isPalindromeNum(i * j) and max < i * j): max = i * j print(max)