Description

 Create a class called Rational for performing arithmetic with fraction.

• Use integer variables to represent the private data of the class─the numerator and the denominator.

• Provide a constructor that enables an object of this class to be initialized when it’s declared. The constructor should contain default values in case no initializers are provided and should store the fraction in reduced form. For example, the fraction 2/4 would be stored in object as 1 in the numerator and 2 in the denominator.
• Provide public member functions that perform each of the following tasks:

                  a.) Adding two Rational numbers. The result should be stored in reduced form.

                  b.) Subtracting two Rational numbers. The result should be stored in reduced form.

                  c.) Multiplying two Rational numbers. The result should be stored in reduced form.

                  d.) Dividing two Rational numbers. The result should be stored in reduced form.

                  e.) Printing Rational numbers in form a/b, where a is the numerator and b is the denominator.

P.S. : 

1. You need to implement a private member function reduce() that will be used in your constructor and the public arithmetic member functions to derive the required reduced form. 
2. In reduce(), pay attention to the case that one of the numerator and denominator of a rational number is negative. In this case, the negative sign “-” should be placed at the numerator.

Note :

      This problem involves three files.

• function.h: Class definition of Rational.
• function.cpp: Member-function definitions of Rational.
• main.cpp: A driver program to test your class implementation.

main.cpp

  function.h 

Input

There are five strings in each line: S1 S2 S3 S4 S5

• S1 represents an operator (+,-,*,/)
• S2 and S3 represent the numerator and denominator of the first operand, respectively.
• S4 and S5 represent the numerator and denominator of the second operand, respectively.

Input terminated by EOF.

Output

For every given operation, your program should print the corresponding result followed by a new line character.

Sample Input  Download

Sample Output  Download

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Description

Palindrome is a string that is identical to its reverse, like "LeveL" or "QAQ".

Create a class of palindrome that check whether a given string is a palindrome.

main.cpp :

// main.cpp
#include <iostream>
#include "function.h"

using namespace std;

int main()
{

    char word[100001];
    while(cin >> word){

        PalindromeChecker p1(word);
        PalindromeChecker p2;

        p2 = p1;

        p2.reverse();

        if(p1==p2)
            cout << "Yes\n";
        else
            cout << "No\n";
    }

    return 0;
}

function.h : 

// function.h
#include <iostream>
#include <string>

using namespace std;

class PalindromeChecker
{
private:
    static const int MAXWORDLENTH=100001;
    char word[MAXWORDLENTH];//store the input string

public:

    PalindromeChecker();
    PalindromeChecker(const char*);
    PalindromeChecker& operator=(const PalindromeChecker& p);
    void reverse();
    friend bool operator== (PalindromeChecker &p1, PalindromeChecker &p2);

};

• function.h: Class definition of PalindromeChecker.
• function.cpp: Member-function definitions of PalindromeChecker.
• main.cpp: A driver program to test your class implementation.

• Step 1. Include function.h into function.cpp and then implement your function.cpp. (You don’t need to modify function.h and main.cpp)
• Step 2. Submit the code of function.cpp into submission block.
• Step 3. Check the results and debug your program if necessary.

Input

The input consists of multiple lines, each line contains a string.

The length of each string is less than 100000. (Defined in MAXWORDLENTH)

The number of test case is less than 1000. 

Output

Output "Yes" if it's a palindrome, "No" if it's not.

Sample Input  Download

Sample Output  Download

Partial Judge Code

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