Huawei OJ: String Processing

 1 #include <iostream>
 2 #include <stdlib.h>
 3 #include <string>
 4 #include <sstream>
 5 #include <vector>
 6 using namespace std;
 7 
 8 int main()
 9 {
10     string s;
11     getline(cin, s);
12     for (auto it = s.begin(); it != s.end(); it++)
13     {
14         if (!isalpha(*it))
15             (*it) = ' ';
16     }
17 
18     istringstream ss(s);
19     string tmp;
20     vector<string>ans;
21     while (ss>>tmp)
22     {
23         tmp[0] = toupper(tmp[0]);
24         ans.push_back(tmp);
25         //tmp.clear();
26     }
27     (ans.back()).insert((ans.back()).end(), '.');
28     for (auto it = ans.begin(); it != ans.end(); it++)
29     {
30         if (it == prev(ans.end()))
31             cout << *it;
32         else
33             cout << *it << ' ';
34     }
35     system("pause");
36     return 0;
37 }