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mura303/a.rb

Created May 29, 2017 22:25
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Raw
a.rb
#!ruby
inputnum = gets.to_i
inputnum.times do |case_id|
(s, k_str) = gets.split
k = k_str.to_i
count = 0
result = nil
(s.length-k+1).times do |i|
if s[i] == ?-
count += 1
k.times do |j|
if s[i+j] == ?-
s[i+j] = ?+
else
s[i+j] = ?-
end
end
end
end
if s.index(?-)
result = "IMPOSSIBLE"
else
result = count.to_s
end
puts "Case ##{case_id+1}: #{result}"
end
Raw
gistfile1.txt
#!ruby
inputnum = gets.to_i
inputnum.times do |case_id|
(s, k_str) = gets.split
k = k_str.to_i
count = 0
result = nil
(s.length-k+1).times do |i|
if s[i] == ?-
count += 1
k.times do |j|
if s[i+j] == ?-
s[i+j] = ?+
else
s[i+j] = ?-
end
end
end
end
if s.index(?-)
result = "IMPOSSIBLE"
else
result = count.to_s
end
puts "Case ##{case_id+1}: #{result}"
end
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