左眼皮跳跳

Problem Description Nowadays, Jim Green has produced a kind of computer called JG. In his computer, the instruction is represented by binary code. However when we code in this computer, we use some m

Description Problem B Broken Keyboard (a.k.a. Beiju Text) You're typing a long text with a broken keyboard. Well it's not so badly broken. The only problem with the keyboard is that somet

#1032 : 最长回文子串 时间限制:1000ms 单点时限:1000ms 内存限制:64MB 描述    小Hi和小Ho是一对好朋友，出生在信息化社会的他们对编程产生了莫大的兴趣，他们约定好互相帮助，在编程的学习道路上一同前进。    这一天，他们遇到了一连串的字符串，于是小Hi就向小Ho提出了那个经典的问题：“小Ho，你能不能分别在这些字符