AtCoder Regular Contest #001
http://arc001.contest.atcoder.jp/
A, B問題だけ。
A, Bは楽勝でささっと解けたけど、C以降に取り組む気にはなれず・・・。(馬鹿
A. センター採点
n = gets.chomp.to_i answers = gets.chomp.split "" hash = Hash.new 0 answers.each do |answer| hash[answer] += 1 end max = hash.values.max min = (hash.values.min == n) ? 0 : hash.values.min puts "%d %d" % ([max, min])
B. リモコン
a, b = gets.chomp.split( " " ).map{ |e| e.to_i } ops = [1, 5, 10] nums = [a] count = 0 loop do break if nums.index( b ) != nil tmp = [] ops.each do |op| nums.each do |num| tmp << num + op tmp << num - op end end nums += tmp count += 1 end puts count