标准字符串的方法: /******************************************** the tokenize function for std::string *********************************************/ #include <string> #include <vector> #include <iostream> using namespace std; typedef basic_strin…
C. String Manipulation 1.0 Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 codeforces.com/problemset/problem/91/B Description One popular website developed an unusual username editing procedure. One can change the username only by deleting some characte…