Problem 4 - Find the largest palindrome made from the product of two 3-digit numbers.

링크

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.

python

ans = 0 for i in range(100, 1000): for j in range(i, 1000): n = i * j sn = str(n) if sn == sn[::-1] and n > ans: ans = n print ans

python - 1 line

print max([x*y for x in range(900,1000) for y in range(x, 1000) if str(x*y) == str(x*y)[::-1]])