Question

Question :

You are given a file results.txt with the results of an experiment as a set of integers. You need to separate these results into three categories: negative integers, even positive integers, and odd positive integers.

 

A sample of the file results.txt is shown below:

    52    49   -22    31   -66    41   -94   -45   -91   -81    65    39   -37    90   -94   -12   -24    53    59   -63    -2

   -11    29    42    51   -45    36    31   -68   -77     0    92   -32    17   -56    51   -49     1    40    79    92     9

   -73   -70   -49    68   -49    63   -52    86   -30   -61   -50    23    -5   -30    66    17    10    84   -43    52    51

…

Write a complete C++ program that reads the data from the file results.txt and separate it into the following files:

1.     A file negative.txt that contains the negative integers from the results.

2.     A file even.txt that contains the even positive integers from the results.

3.     A file odd.txt that contains the odd positive integers from the results.

 

Notes: The number of experiments is not greater than 1000, but the exact number is not known beforehand. Your program needs to check whether the file results.txt exists or not.

 

 

The negative.txt file might contain data similar to the following (note that the numbers are separated with a space):

-22 -66 -94 -45 -91 -81 -37 …

The even.txt file might contain data similar to the following (note that the numbers are separated with a space):

52 90 42 35 0 92 40 …

The odd.txt file might contain data similar to the following (note that the numbers are separated with a space):

49 31 41 65 39 53 59 …

 

 

Question:

1.     Write a program to create a new type called complex using structures. This new type will have only two double numbers: real and imag to represent the real and imaginary parts of a complex number.                                           

2.     Declare two complex numbers X and Y in the function main and ask the user to enter the real and imaginary parts of these numbers using the keyboard.                

3.  Define a function called display that accepts a complex number as a parameter and will display its real part and its imaginary part. This function returns nothing.       

4.     Use the function display in the function main to display the real and imaginary parts of X and Y.                                             

5.     Define a function called add that accepts two complex numbers as parameters and it will return the complex number that is equal to their sum. To add two complex numbers, just add the corresponding real and imaginary parts.                           

6.     Declare a complex number Z in the main function and assign the call to the function add to Z using the parameters X and Y. Use the function display in the function main to display the real and imaginary parts of Z.                                 

Sample execution (user inputs are in bold):

Please enter the first complex number X 10 15

Please enter the second complex number y 35 22

(10,15)

(35,22)

(45,37)

 

Answer 1

#include<stdio.h>

struct complex{ //Definging a complex number

  double real;

  double imag;

};

typedef struct complex Complex;

void display(Complex x); //Prototypes

Complex add(Complex x, Complex y);

int main(){

  Complex X, Y, Z; //Declaring two complex numbers

  printf("Enter the first complex number: ");

  scanf(" %lf %lf", &(X.real), &(X.imag));

  printf("Enter the second complex number: ");

  scanf(" %lf %lf", &(Y.real), &(Y.imag));

  display(X); //Displaying complex numbers

  printf(" ");

  display(Y);

  printf(" ");

  Z = add(X, Y);

  display(Z);

  return 0;

}

//Function definition

void display(Complex x){

  printf("(%.1lf,%.1lf)", x.real, x.imag);

}

Complex add(Complex x, Complex y){

  Complex z;

  z.real = x.real + y.real;

  z.imag = x.imag + y.imag;

  return z;

}