Hello, everybody. Can anyone help me to solve this problem? I can't solve it and editorial written on Japanese. I didn't understand. Thanks! http://atcoder.jp/contests/arc066/tasks/arc066_b?lang=en
PLEASE HELP
Hello, everybody. Can anyone help me to solve this problem? I can't solve it and editorial written on Japanese. I didn't understand. Thanks! http://atcoder.jp/contests/arc066/tasks/arc066_b?lang=en