原题:http://codeforces.com/contest/554/problem/A 题目大意: 给一个string,表示一个相册页, 左右都能放photo, 问几种方法. 分析: n个相册夹, 左右都能放, n+1种地方, 26种photo, (n+1)*26, 当然会有重复, 重复是n个. 减去重复的就是答案 public void solve(int testNumber, InputReader in, OutputWriter out) { String s = in.readString(); int n = s.length(); out.print((n+1)*26 – n); }