Question

我解决了我的bool问题，但现在输出不是正面和反面打印整个单词。只是部分我在下面发布了输出。我非常坚持这一点。我尝试了很多方法来解决它。我知道有一些c ++专家可能会愿意提供帮助和提示吗？

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

#include "Queue.h"
void print(string s1, string q1)
{
    cout << s1 << "  ";
    cout << q1 << endl;
}
int main()
{
    bool isPalin= true;
    string word;
    //string temp;
    Stack s1;
    Queue q1;
    void print(string, string);

    cout<< " Enter a word you would like to see if it is a palindrome: \n";
    getline(cin, word);

    cout<< "The word you entered is: "<< word<< endl;
    for ( int i = 0; i<(word.size()-1); i++)
    {
        string temp(word, i, 1);
        s1.push(temp);

    }

    for (int i = 0; i<(word.size()-1); i++)
    {
        string temp(word, i,1);

        q1.enqueue(temp);

    }
    while (!s1.empty())
    {
        print(s1.top(), q1.front());

        if( s1.top() != q1.front())
        {
             isPalin = false;
            s1.pop();
            q1.dequeue();
        }
        cout<< " Lets check if this word is a palindrome" << boolalpha<< isPalin<<endl;
    }

Output:

 Enter a word you would like to see if it is a palindrome: 
hello
The word you entered is: hello
l  h
 Lets check if this word is a palindromefalse
l  e
 Lets check if this word is a palindromefalse
e  l
 Lets check if this word is a palindromefalse
h  l
 Lets check if this word is a palindromefalse
Queue created.

Answer 1

您似乎忘记在使用之前在某处声明const。

Answer 2

这显然是我的循环和我的时间。我试图想到逻辑。堆栈是FIFO，队列是LIFO。但它开始让我困惑我将如何解决这个问题。也许我应该把一个for循环带走，然后将它推入，排队然后出列？

downloadImages(arrayOfAdFileInfo) { downloaded in
    // initiate whatever you want when the downloads are done

    print("All Done! \(downloaded) downloaded successfully.")
}

// but don't do anything contingent upon the downloading of the images here

我如何让这个队列为回文工作？

2 个答案: