C++ :: Use Class Structure To Create Program That Reads In Two Rational Numbers?

Nov 4, 2013

how to use a Class structure to create a program that reads in two rational numbers and adds them, subtracts, multiplies, and divides them.

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C++ :: Create A Program That Reads Numbers And Calculate Them On A Separated Subroutine

Nov 15, 2013

I need to create a program that reads some numbers, and calculate them on a separated subroutine, and the return of this subroutine must be the sum of all the numbers. I'm getting an error but I can't figure out why =/

#include <iostream>
using namespace std;
int calc(int val, int qtd){
int sum=0;
for (int cont=0; cont<qtd; cont++)
sum=sum+val;
return sum;

[Code]...

The error that I'm getting is on the line 22.

The error message: "invalid conversion from 'int*' to 'int' [fpermissive]

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C++ :: Rational Number Class - Handling Numbers Of Different Denominators

Apr 6, 2014

My assignment is to handle rational numbers of different denominators...

Develop rational number class that can
•add
•subtract
•multiply
•divide
•reduce to simplest form
Your class must be able to handle rational numbers of different denominators

This is the errors I am getting

error C4716: 'Rational::addition' : must return a value
error C4716: 'Rational::multiplication' : must return a value
error C4716: 'Rational::division' : must return a value
error C4716: 'Rational::subtraction' : must return a value

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C++ :: Program That Reads In Ten Whole Numbers And Output Sum

Jan 23, 2014

Write a program that reads in ten whole numbers and that output the sum of all the numbers greater than zero, the sum of all the numbers less than zero (which will be a negative number or zero), and the sum of all the numbers, whether positive, negative, or zero. The user enters the ten numbers just once each and the user can enter them in any order.

Your program should not ask the user to enter the positive numbers and the negative numbers separately. Assume the user will type integer numbers.

this is what i got but it wont run saying there is an error

#include<iostream>;
using namespace std;
int main() {
int count=0;
int num;
int positive=0;
int negative=0;

[Code] ....

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Visual C++ :: Program That Reads Numbers From A File And Calculates Average

Mar 13, 2014

[URL] .....

Here is my code and basically these are the steps. I feel like we have something good to work on but we keep getting errors.

a. Data to the program is input from a file of an unspecified length; that is, the program does not know in advance how many numbers are in the file.

b. Save the output of the program in a file.

c. Modify the function getNumber so that it reads a number from the input file (opened in the function main), outputs the number to the output file (opened in the function main), and sends
the number read to the function main. Print only 10 numbers per line.

d. Have the program find the sum and average of the numbers.

e. Modify the function printResult so that it outputs the final results to the output file (opened in the function main). Other than outputting the appropriate counts, this new definition of the function printResult should also output the sum and average of the numbers.

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C/C++ :: Write A Program That Reads Four Float Numbers From The Input Text File

Apr 3, 2015

I need to write a program that reads four float numbers from the input.txt file, then it prints out the greatest of the four numbers into the output.txt file. I did everything, but the numbers don't print out.

#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream inFile;
ofstream outFile;
float number1, number2, number3, number4;

[Code]...

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C++ :: Write Program For Class That Reads From Input File?

Mar 7, 2013

I am trying to write a program for class that reads from an input file the month, year & total collected. I am using notepad for the input file.

This is what the notepad file looks like
-----------------------------------
March 2013 63924.62

Why does it give me random numbers in the output rather than what the notepad has?

Also, the outfile is completely blank.

#include <iostream>
#include <iomanip>
#include <fstream>

[Code].....

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C++ :: Create A Class Type Structure Using Struct Instead Of Classes

Apr 16, 2013

I am trying to create a class type structure using struct instead of classes.

Code:
#include <iostream>
#include <stdlib.h>
using namespace std;
struct myclass {
int * array;
int nelements;

[Code] ....

Guess what I am asking is using the pointer in the first code section better or is there another way'. I don't know about making the second code work.

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C++ :: Rational Number Using Class

Nov 1, 2013

I complete this program, but the only thing is that it won't execute the program.the other problem is the program is not running as it is suppose to.

#include <iostream>
#include <iomanip>
#include <string>
#include <sstream>
#include <cctype>
using namespace std;
class Rational

[code]....

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C/C++ :: Rational Number Class?

Mar 5, 2015

Assignment to make a rational numbers class as follows:

create a constructor that prevents a 0 denominator in a fraction, reduces or simplifies fractions that are not in reduced form, and avoids negative denominators.

Overload the addition, subtraction, multiplication and division operators for this class.

Overload the relational and equality operators for this class. My code so far is as follows:

header file:

#ifndef RATIONAL_H
#define RATIONAL_H
#include <iostream>

[Code].....

I'm getting an error:

Build started: Project: 11.10rationalnumberclass, Configuration: Debug Win32 ------
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall Rational::setFraction(int,int)" (?setFraction@Rational@@QAEXHH@Z) referenced in function _main
1>C:UsersJacobDocumentsVisual Studio 2010ProjectsComplexnumbers11.8projectDebug11.10rationalnumberclass.exe : fatal error LNK1120: 1 unresolved externals

part of the problem might be that I cannibalized another program dealing with complex numbers to make this. While I don't need this class to be perfect, I'm not sure I entirely understand everything about classes and overloading yet.

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C/C++ :: Check Rational Or Irrational Numbers After Taking Square Root?

Aug 4, 2014

I tried to check the rational or irrational numbers after we take the square root. i dont get the formula. for eg. squareroot of 64 is 8 and it is rational. square root of 2 is irrational. how to check it in c++..

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C++ :: Rational Number Class Implementation - Overloaded Operators

Sep 13, 2013

I'm implementing a rational number class:

#include <iostream>
#include <stdint.h>
using namespace std;

typedef int64_t RAT_INT;
struct RAT{
RAT_INT Num, Den;

RAT(RAT_INT num = 0, RAT_INT den = 1){
Num = num;
Den = den;

[Code].....

Two questions:
1) In the second line in main, how does C++ know to convert 2 to the appropriate RAT?
2) Is it possible to make the third line in main valid without adding global operators for all the member operators to support plain integers?

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Visual C++ :: Adding Rational Number Using Only Class Functions

Feb 22, 2015

I'm having trouble finishing this program. What I'm trying to do is create a class for Rational numbers. Get input from user for denominator and numerator. Store the numbers without a sign, and for the sign store it separately in char. I'm not supposed to use accessor functions. The part that I can't seem to know how to do is use the info that was stored in the addUp function. This function need to add two rational numbers. i need to make this function general enough that it can handle two fractions, or a fraction and a whole number, or two whole numbers. What I already have here is readin function which reads in the numerator and denominator. setnumerator and setdenominator to assign positive values. setsign should get the sign of the fraction. Finally addUp should addUp which I explained before. I have some ideas about writing the tests, but can't seem to know how to implement it to the program. The main program is still empty but all I'm supposed to do there is call the class functions.

Code:
#include <iostream>
using namespace std;
class Rational {
private:
int numerator, denominator;
char sign;

[Code] .....

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C :: How To Create A Program That Not Allow Negative Numbers

Sep 2, 2013

I have a homework assignment due that told me for the "input specification" that "n" is an integer greater then 0. How would I put this in and where?

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C :: How To Create A Structure That Pointing To Another Different Structure

Mar 17, 2013

how I can create a structure that pointing to another different structure. And also passing structure to function.

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C/C++ :: Program That Reads A File?

Jan 21, 2015

I wrote the following program:

#include "stdafx.h"
#include "string.h"
#include "ctype.h"

[Code].....

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C/C++ :: A Program That Repeatedly Reads In Values?

Sep 26, 2014

I started to write a program that repeatedly reads in values for a,b and c and find the root of the polynomial

ax^2 + bx + c = 0

The program should print out for example:

two complex roots: root1 = -1.00000 + i*1.41421
root2 = -1.00000 - i*1.41421

My code:

#include <stdio.h>
#include <math.h>
int main(void){
int a,b,c;
printf("Choose the values of a, b and c for the equation ax^2 + bx + c");
scanf("%d%d%d
",a,b,c);

[code].....

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C :: Program That Reads Number Of Digits From File?

Jan 16, 2014

I've been working on a program that displays the number of digits in each line of a file, but I feel stuck. Take for example a file that contains these characters:

6347aaa9
54j
811111
6a
709

And I'm trying to display a result like this

1 //that's the number of the line 5 //the number of digits
2 2
3 6
4 1
5 3

Here's what I've written so far:

Code:
#include<stdio.h>
int main() {
char a=0;
int number_of_digits=0, linescount=0, num, number_of_digits_per_line=0;
FILE *inputFile;
if(!(inputFile=fopen("C:TestTest.txt","r")))

[Code]..

I also thought of using fgets and strlen but I am not very good with them and couldn't get the program to work correctly. It did work but it displayed all characters, letters included, not only digits.

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C++ :: Write A Program That Reads Data From A File?

Feb 26, 2013

Write a program that reads data from a file (use the attached data file). These data are a student name and 3 test scores. The program should calculate the average of the 3 test scores, and display the name, 3 test scores, and the average to the monitor.

Useful tips:
a) Include the following header files: iostream, fstream, iomanip, and string
b) The name of the data file is “datafile.txt”, you need to save the file in the same folder of the source file.
c) use the manipulators (setw, setprecision, setfill, showpoint, fixed) to format the average with 1 digits after decimal point as following.
d) Use character ‘ ’ for tab.

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C++ :: Program That Reads In A Sequence Of Binary Digits?

May 11, 2013

c++ program that reads in a sequence of binary digits (values 0 and 1) and stores them into a STL container. The input should terminate on any input that is not a 0 or 1. After finishing the read-process, apply a "bit-stuffing" algorithm to the container. In this case the bit stuffing should occur after four consecutive bits of the same value.i,e. four 0's or four 1's.. Also write the de-stuffing code to process the stuffed data to recreate the original data and verify that the original data is recovered correctly.

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C++ :: Write Program That Reads Group Of Chars?

Nov 28, 2014

Write a program that reads a group of chars till $. Then, compute # of vowels, # of digits, # of word and # of special chars. Your program should display all required results.

So in what way should I do it? Loop, array, ...?

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C/C++ :: Program That Reads 3-by-4 Matrix And Displays Sum Of Columns

Nov 18, 2014

I'm not sure why Im getting a wrong Sum. of the Columns.

Write a method that returns the sum of all the elements in a specific column in a matrix using the following header:

double sumColumn(const double m[] [SIZE], int rowSize, int columnIndex)

Write a test program that reads a 3-by-4 matrix and displays the sum of each column. here is a sample run:

Enter a 3-by-4 matrix row by row:
1.5 2 3 4
5.5 6 7 8
9.5 1 3 1
Sum of the elements at column 0 is 16.5
Sum of the elements at column 1 is 9.0
Sum of the elements at column 2 is 13.0
Sum of the elements at column 3 is 13.0

#include <iostream>
using namespace std;
const int SIZE = 4;
int rowSize=3;

[Code].....

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C :: Using Arrays - Program That Prompts For And Reads In Test Scores

Feb 11, 2013

Write a program that prompts for and reads in test scores. You may assume that valid test scores will be integer values between 0 and 100. You may also assume that the user will not enter more than 35 test scores. Use a preprocessor directive to define this value. User input will be complete when the user enters a -1 for the test score. When all of the test scores have been entered, the program will print out the scores. Use a while or do-while loop to read in the values. Use a for loop to print out the values.

Sample output:
Enter test score 1: 88
Enter test score 2: 67
Enter test score 3: 74
Enter test score 4: 94
Enter test score 5: 79
Enter test score 6: 56
Enter test score 7: -1
Number of scores entered: 6
Test scores entered : 88 67 74 94 79 56

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C :: Program That Reads In TXT File And Searches Through Text For Keyword?

Nov 8, 2014

I'm working on a program that reads in a .txt file and searches through the text for a keyword. If it gets a hit on the keyword, the line number where the keyword is located and the line that contains the keyword is printed out. What I have now doesn't catch every occurance of the keyword "a".

Code:

#include <stdio.h>
#include <string.h>
int main(int argc, char **argv) {

[Code]......

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C++ ::  program That Reads Into String Object A Name With Three Blanks Between First And Last Names

Oct 4, 2014

" Write a program that reads into a string object a name with three blanks between the first and last names. Then extract the first and last names and store them in separate string objects. Write a function subprogram that displays its string argument two times. Call this function display the first name for times and then to display the last name six times."

I completed coding the first part of this task with the strings and combining strings together. However, i have having trouble with the other half of this task. It begins from "Write a function subprogram to display the last name six times." This is where i have so far --

#include <iostream>
#include <string>
using namespace std;
int main()
{
// Defining the strings

string firstname, lastname;
string wholename;
string greet = " Hi ";

[code]....

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C/C++ :: Program That Reads Data From A Text Document And Allows To Modify

Apr 30, 2015

I'm trying to make a program that reads data from a text document and allows me to modify it. I am stuck with the display() function. I can get the printf statement to display all my array values except the char AD value. When I include flight[i].AD it causes the program to crash. When I run the program to only display the AD variable I get a bunch of weird symbols. I'm not sure where the program is going wrong because it seems to be storing values properly except for the AD variable.

#include <fstream>
using namespace std;
//named constants
const int MAX=100; //maximum flights
const int SIZE=20; //maximum characters
//struct definition
struct FlightType
{
char name[SIZE];

[Code]...

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