Created
January 15, 2017 15:40
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AtCoder ABC #052 [Ruby]
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a, b, c, d = gets.chomp.split(" ").map(&:to_i) | |
s1 = a * b | |
s2 = c * d | |
if s1 >= s2 then | |
puts s1 | |
else | |
puts s2 | |
end |
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n = gets.chomp.to_i | |
s = gets.chomp.split("") | |
x = 0 | |
xs = [x] | |
s.each do |c| | |
if c == "I" then | |
x += 1 | |
else | |
x -= 1 | |
end | |
xs << x | |
end | |
puts xs.max |
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require 'prime' | |
a = 10**9+7 | |
n = gets.chomp.to_i | |
h = Hash.new(0) | |
(1..n).each do |i| | |
x = Prime.prime_division(i) | |
x.each do |n, e| | |
h[n] += e | |
end | |
end | |
ret = 1 | |
h.values.each do |i| | |
ret *= (i + 1) | |
end | |
puts ret % a |
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n, a, b = gets.chomp.split(" ").map(&:to_i) | |
xs = gets.chomp.split(" ").map(&:to_i) | |
tired = 0 | |
(n-1).times do |i| | |
d = xs[i + 1] - xs[i] | |
tired += [d*a, b].min | |
end | |
puts tired |
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