# [Problem - 592A - Codeforces](http://codeforces.com/problemset/problem/592/A) | |
field = [] | |
while line = gets | |
field << line.chomp.split("") | |
end | |
field = field.transpose | |
stepA = [] | |
stepB = [] | |
field.each do |r| | |
a = r.rindex("W") | |
b = r.rindex("B") | |
unless b.nil? then | |
if a.nil? or (a < b) then | |
stepB << 7 - b | |
end | |
end | |
a = r.index("W") | |
b = r.index("B") | |
unless a.nil? then | |
if b.nil? or (a < b) then | |
stepA << a | |
end | |
end | |
end | |
if stepB.empty? or (stepA.min <= stepB.min) then | |
puts "A" | |
elsif stepA.empty? or (stepA.min > stepB.min) then | |
puts "B" | |
end |
# [Problem - 592B - Codeforces](http://codeforces.com/problemset/problem/592/B) | |
n = gets.chomp.to_i | |
if n == 3 then | |
puts 1 | |
else | |
a1 = 1 | |
4.upto(n).each do |a| | |
a1 += 3 + 2*(a-4) | |
end | |
puts a1 | |
end |
# [Problem - 592C - Codeforces](http://codeforces.com/problemset/problem/592/C) | |
t, w, b = gets.chomp.split(" ").map(&:to_i) | |
res = 0 | |
(1..t).each do |i| | |
ww = i / w | |
www = w * ww | |
bb = i / b | |
bbb = b * bb | |
if www ==bbb then | |
res += 1 | |
end | |
end | |
puts Rational(res, t) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
This comment has been minimized.
Show comment Hide commentwhatalnkNov 5, 2015
whatalnk commentedNov 5, 2015