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Add the fourth problem from project Euler

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Add the fourth problem from project Euler
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Onur ER 2019-10-18 15:33:19 +03:00 committed by GitHub
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commit 2980dd73c1
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Project Euler/Problem 4/problem4_sol1.rb Normal file
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# 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.
answer = 0
999.downto(99) do |i|
999.downto(99) do |j|
t = (i * j)
answer = i * j if (t.to_s == t.to_s.reverse) && (t > answer) && (t > answer)
end
end
puts answer