C++ Primer课后练习9.49

最新推荐文章于 2021-10-06 11:30:50 发布

原创最新推荐文章于 2021-10-06 11:30:50 发布 · 450 阅读

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本文介绍了一个使用C++编写的程序，该程序从文件中读取单词，并通过检查这些单词是否包含某些升序和降序字母来找出最长的单词。程序利用了标准输入流和字符串操作。

练习9.49

#include
#include
#include
using namespace std;
int main(void)
{
	ifstream input("file.txt");
	if (!input)
		return -1;
	string word;
	string s_asscender("bdfhijklt");
	string s_descender("gpqy");
	string::size_type pos = 0;
	string max_size;
	
	while (input >> word)
	{
		if ((word.find_first_of(s_asscender, pos) == string::npos) &&
			(word.find_first_of(s_descender, pos) == string::npos) && (word.size()>=max_size.size()))
		{
			max_size = word;
			
		}
	}
	cout << max_size << endl;
	/*string s_whatever("abcdefghijklmnopqrstuvwxyz");
	cout << s_whatever << endl;
	string s_asscender("bdfhijklt");
	string s_descender("gpqy");
	string::size_type pos = 0;
	while ((pos = s_whatever.find_first_of(s_asscender, pos)) != string::npos)
	{
		s_whatever.erase(pos,1);
	}
	pos = 0;
	while ((pos = s_whatever.find_first_of(s_descender, pos)) != string::npos)
	{
		s_whatever.erase(pos, 1);
	}
	cout << s_whatever << endl;*/
	return 0;
}on a dark desert highway.   
cool wind in my hair.   
warm smell of colitas rising   
up through the air up ahead in the distance.   
i saw a shimmering light   
my head grew heavy and my sight grew dim   
i had to stop for the night   
there she stood in the doorway   
i heard the mission bell   
and i was thinking to myself   
this could be heaven or this could be hell   
then she lit up a candle   
and she showed me the way   
there were voices down in corridor   
i thought i heard them say......   
welcome to the hotel california   
such a lovely place (such a lovely face)   
there's plenty of rooms at the   
hotel california   
any time of year you can find it here   
her mind is tiffany-twisted   
she got the mercedes-benz   
she got a lot of pretty,   
pretty boys that she calls friends   
how they dance in the courtyard   
sweet summer sweat   
some dance to remember   
some dance to forget   
so i called up the captain   
please bring me my wine   
he said we haven't had that spirit   
here since nineteen sixty nine   
and still those voices are   
calling from far away   
wake you up in the middle of the night   
just to hear them say......   
welcome to the hotel   
calofornia such a lovely place   
(such a loveely face)   
they livin'it up at the hotel california   
what a nice surprise bring your alibis   
mirrors on the ceilling   
the pink champagne on ice   
and she said we are all just prisoners   
here of our own device   
and in the master's chambers   
they gathered for the feast   
they stab it with their steely knives   
but they just can't kill the beast   
last thing i remember,   
i was running for the door   
i had to find the passage back   
to the place i was before   
relax said programmed to receive   aaaaaaaaaaaaaaaaaaaaa
you can check out any time you like   
but you can never leave