问题 1033: C语言程序设计教程（第三版）课后习题8.7

/********************************************************************
@file     Main.cpp
@date     2017-5-26 09:53:03
@author   Zoro_Tiger
@brief    问题 1033: C语言程序设计教程（第三版）课后习题8.7
          http://www.dotcpp.com/oj/problem1033.html
********************************************************************/
#include <cstdio>
#include <cmath>
#include <string>
#include <iostream>

#define TEST
#undef  TEST

int main(int argc, const char* argv[])
{

#ifdef TEST
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#endif

    //!输入
    std::string input = "";
    std::cin >> input;

    //!查找元音字符
    std::string temp = "aeiuo";
    for (size_t i = 0; i < input.size(); ++i)
    {
        if (temp.find(input[i]) != std::string::npos)
        {
            printf("%c", input[i]);
        }
    }
    printf("\n");

    return 0;
}