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feat(ruby): 1a

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tiennm99 committed 2025-11-30 15:21:34 +07:00
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rb/1A.rb
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@@ -0,0 +1,6 @@
n, m, a = gets.split.map(&:to_i)
tiles_n = (n + a - 1) / a
tiles_m = (m + a - 1) / a
puts tiles_n * tiles_m