C++ Primer【练习】【5.21】

练习5.21：修改5.5.1（171页）练习题的程序，使其找到的重复单词必须以大写字母开头。

#include <iostream>#include <stdlib.h>#include <vector>#include <string>using std::cin;using std::cout;using std::endl;using std::vector;using std::string;int main(){string buf, mark;cin >> mark;int count = 0;while (cin >> buf)//&&!buf.empty()){if (mark == buf){if (buf[0]<'A' || buf[0]>'Z')continue;count++;cout << buf << endl;break;}mark = buf;}if (count == 0)cout << "There is no same words!" << endl;system("pause");}