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whatalnk/abc121-b.rb

Created March 10, 2019 02:59
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AtCoder ABC #121 B - Can you solve this?
Raw
abc121-b.rb
N, M, C = gets.chomp.split(" ").map(&:to_i)
B = gets.chomp.split(" ").map(&:to_i)
ans = 0
N.times do
a = gets.chomp.split(" ").map(&:to_i)
x = C
M.times do |i|
x += a[i] * B[i]
end
if x > 0
ans += 1
end
end
puts ans
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