C/C++ :: Get Average Of Numbers In Array

Jul 5, 2014

I was trying to make a program that asks the number of grades, get the grades and then get the average. I know I have to save the grades in an array but i don't know exactly how.

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C++ :: Calculate Average From File Containing Array Of Numbers?

Feb 21, 2014

I have written two separate programs; Program 1 calculates the average of an array of numbers which has been hard-coded into the program. Program 2 reads an array of numbers from a text file and displays them on the output.

I wish to combine these two programs into one by making Program 1 read the array of numbers from the file and then calculate the average using that instead of the array { 84, 92, 76, 81, 56 } as outlined below. I only wish to display the average in the output, not the number array as Program 2 does.

I have tried to do most of the work, I just need modifying the code slightly so it reads the number array from the file and calculates the average.

Program 1

#include <iostream>
#include <cmath>
#include <math.h>
#include <fstream>
#include <string>
#include <numeric>
using namespace std;
int main() {
const int nNumStudents = 5;

[Code] .....

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C++ :: Average Negative / Positive Numbers And Total Average?

Nov 18, 2013

I am trying to average the negative numbers and positive number and of course the total average.

This will read in a list of n values, where n is not known ahead of time. The number of values read into the array will be saved in n.

vector<int> readList() {
std::vector<int> result;
ifstream inFile;
inFile.open("setA.txt");
for (int x; inFile >> x; ) {
result.push_back(x);

[code]....

array is a one-dimensional array of integers and n is the number of elements in that array that contain valid data values. Both of these are input parameters to the function. The function must calculate 1) the average of the n integers in array, storing the result in ave; 2) the average of the positive numbers (> 0), storing the result in avePos, and 3) the average of the negative numbers (< 0), storing the result in aveNeg.

void avgs (std::vector &array, int &ave, int &avePos, int &aveNeg) {
int sum = 0, pos_sum = 0, neg_sum = 0, pos_count = 0, neg_count = 0;
for (auto i : array) {
sum += i;
if (i > 0) { pos_sum += i; ++pos_count; }

[code]....

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C++ ::  How To Obtain Total Of Numbers Greater Than Average Without Using Array

Jul 27, 2014

I am facing a problem which i could not obtain the total numbers which is greater than the average value. For example:

#include <iostream>
using namespace std;
int main (){
int size , count;
double no, max, min ,total, sum , average;

[Code] ....

In this case im able to compute the average of the numbers but when it comes to capture the total of numbers which is greater than the average value, how to compile the code , because the average number is only been compute once all the value capture by the input of user is sum up.

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C++ :: Pass Array Of Int And Its Size - Print Out Numbers Above Average

Nov 15, 2013

I am attempting to write a program " that has a function that is passed an array of int and its size, and with that it prints out only the numbers that are above average. "

I have included my code so far, but I am only getting one value as output, and that value seems to be completely off. I keep trying, but I am really stuck.

#include <iostream>
using namespace std;
int average(int values[],int size);
int main(){
int size;
int values[] = {1,2,3,4,5,6};

[Code] ....

Added the floats in the average() function. But there is still a value problem.

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C/C++ :: Find Average Of 10 Numbers Passed To Array Using Function?

Jun 20, 2012

find the average of 10 numbers to an array using function .the array should be controlled by while loop?

#include <iostream.h>
float sum(float x[],int size);
    main() {
   float a[10];
int n=10;

[Code] .....

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C++ :: Write A Source Code That Find Smallest / Largest And Average Of Numbers From Array

May 13, 2014

im trying to write a source code that find the smallest, largest and average of numbers in array. the code runs fine, but it is not giving the highest number and the the average should include only four number excluding highest and smallest number from the array.

void OlympicJudging() // Olympic Judging {
int numbers [6];
double average, sum = 0;
int temp;
for(int i = 0; i < 6; i++){
cout << "Please type a value for scores: ";
cin >> numbers[i];

[Code]...

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C++ :: Count The Numbers Below The Average

Mar 7, 2013

I have loaded and 1d array from a .dat file, calculated the average of all the numbers. Now I need to count every number in the array that is below the average and cout that number. This is the method in the class I have so far:

int IntegerArray::countBelowAverage(int numBelowAvg) {
avg=IntegerArray::getAvg();
for(int ct=0; ct<avg; ++ct) {
numBelowAvg=ct;
}
return numBelowAvg;
}

My output from this is always 0 and I know that there are numbers below the avg.

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C :: Find Average Of Random Numbers

Aug 17, 2013

I have the random values down but when I try to assign randValue to another integer I get an error.I want to make an inner loop where I find 5 random number 50 times and print the average of those numbers.

I know I have the bare bones of the below, but without giving me a huge shove in the right direction can I have a poke? I have been programing for three months now. I have noticed when I do simple fun projects I learn more then what my professor assigned to me. The class is over but I want to keep building.C++ starts in one week...

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define NUMBERS 5

int main(int argc, const char * argv[]) {
float randValue = 0.0;
int i;

[code]....

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C++ :: Average Of 4 Floating-point Numbers?

Mar 17, 2013

I need to implement a C++ program that asks the user for four floating-point numbers. The program should then calculate the average using two different functions, one value returning and one void. The program should output the average of the four numbers. For this program I need to use float instead of int for the types of variables. Below is a proto-type code that I am able to use to do this program.

#include <iostream>
using namespace std;
int sum(int,int);

[Code].....

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C/C++ :: Calculate Sum And Average Of A Sequence Of Numbers

Feb 17, 2014

Write a C program that calculates the sum and average of a sequence of numbers. Assume the first number specifies the number of values remaining to be entered. If the first number is less than 1, then the program should display an "Invalid Entry ... Please enter a positive number." message.

THIS IS HOW IT SHOULD COME OUT...
Enter the number of values to process 0

Invalid Entry ... Please enter a positive number.

Enter the number of values to process 3
Enter 3 numbers:
1
2
3

Sum: 6
Avg: 2

THIS IS THE CODE I HAVE SO FAR...

#include <stdio.h>
int main(void) {
int total=0;
int howmany;
int i;
int value;

[Code] ....

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C/C++ :: Receive 20 Numbers Or Less And Find Average?

Apr 27, 2015

I made a program that is suppose to receive 20 numbers or less and find the average, then show all numbers entered but my average does not show. It shows as 0 and a line pops up after every number returned. I am stuck and dont know how to fix the logical errors.

#include <iostream>
#include <cmath>
using namespace std;
int main() {
float num[20];
int amount_num;

[Code] ....

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C :: Flowchart - Program To Compute Average Of N Numbers

Feb 20, 2015

How can you draw a flow chart that will be used to write a program to compute Average of n numbers?

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C++ :: Read Three Numbers From Keyboard And Find The Average

Jan 17, 2013

1): write program to c++ to read three numbers from keyboard and find the average of the three numbers?

2): write program c++ to read two numbers from keyboard and swap between numbers like x=4; y=6; the result x=6; y=4;?

I think that int can do that job. but im not sure.

3): must be the result of positive example: (x+(-y)=z)?

with abs ?

4): values for each of : X= ;y= ;z= ;

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C++ :: Find And Print Average Of Odd Numbers Greater Than 5 And Less Than 100

Nov 5, 2014

I am new to programming in C++, and have got a project on this.

Write a C++ program that accepts three numbers from the user (All are integers):

Such as:

Enter the first mark: 3
Enter the second mark: 25
Enter the third mark: 23

The program should find and print the average of the odd numbers greater than 5 and less than 100.

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C++ :: Program To Calculate Average Of 3 Numbers - Undeclared Identifier

Sep 22, 2013

Write a program that will calculate average of 3 numbers

#include <iostream>
int
main(){
// prototypes:
float add_and_div(float, float,
float);

[Code] .....

i get the following errors:

error C2065: 'cout' : undeclared identifier
error C2065: 'cin' : undeclared identifier
error C2065: 'cout' : undeclared identifier
error C2065: 'endl' : undeclared identifier

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C++ :: Compute Average Median And Mode For Numbers In Vector?

Feb 23, 2014

I needed to compute average median and mode for numbers in a vector. Im having a few issues I have already figured out how to calculate average and median just not mode. Also the program crashes when 0 is entered instead of exiting nicely. Also i keep getting a error on line 47 saying primary expression expected before else.

#include <iostream>
#include <conio.h>
#include <math.h>

[Code]....

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C :: Find Smallest / Largest And Average Values In A Collection Of N Numbers

May 30, 2014

I seem to have reached a dead end in a program I am attempting to write.The purpose of the program is find the smallest, largest, and average values in a collection of N numbers. It needs to get the value of N before scanning each value in the collection of N numbers.I'm having trouble creating comparisons for each set. I have a feeling because of the way I structured my program, I'm unable to make a proper comparison. Maybe my approach was wrong as soon as I got to the for statement to loop N sets and N numbers.Here is my code so far:

Code:

#include <stdio.h>
int main (void)
{
int num_sets, num_of_integers;
int count, count2, set, sum = 0;
int num, avg;
}

[code]....

/* Here is where I would continue to attempt to make a comparison between sets to determine smallest to largest */

return 0;

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C++ :: Calculate Average Of A Stream Of Positive Numbers - Loop Program?

Feb 25, 2013

Write a program that calculates the average of a stream of positive numbers. The user can enter as many positive numbers as they want, and they will indicate that they are finished by entering a negative number. For this program, treat zero as a positive number, i.e., zero counts as a number that goes into the average. Of course, the negative number should not be part of the average. You must use a function to read in the numbers, keep track of the running sum and count, compute the average, and return the average to the main() function. Note that you must use a loop to do this, as you don't know how many numbers the user will enter ahead of time. I am having problem writing a loop program for it..

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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++ :: Generate A List Of 200 Random Numbers - Determine Median / Mode And Average

Oct 24, 2013

I am just starting out programming and have an assignment due in the near future. the problem is I cant seem to figure it out. I started it already but got stuck cant seem to figure it out. Here is the assignment.

Create a program that will generate a list of 200 random numbers (ranging from 1-1000) and determine the medium, mode, and average of the list of numbers. Have the program display the original list ant then display the list in ascending and descending order on the screen.

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C :: Print Correct Normalized Value / Average And Values Above Average

Nov 14, 2013

I must write a function that has a one dimensional double array and the number of values in the array as its arguments. Normalize the values. I must also print the maximum, minimum, average and numbers of values above the average in the array.

The equation that computes the normalized value from a value x is:

Normalized x= (x-min(array))/(max(array)-min(array))

My code does not print the correct normalized value, average and values above average.

Code:
#include <stdio.h>
int findMax( double array1[], int num_elements) // This function computes the maximum value of the array
{
int i, max=-32000;
for (i=0; i<num_elements; i++)

[Code] .....

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C++ :: Getting Average Value Of Array In Function

Nov 29, 2014

How to power value in function too.

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C++ :: Finding The Average Of Array

Apr 16, 2013

I am attempting to write a program that takes a number(picked by the user) of test scores in an array then calculates the average and outputs the number of passed and failed tests.

On a side note I am attempting to use array notation in the main function and pointer notation in the other functions

#include<iostream>
#include<iomanip>
using namespace std;
int numScores;
int counter = 0;
double *scores;
//Function Prototypes

[Code]...

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C++ :: Array In Ascending Order And Average

Mar 19, 2014

I am getting the hang of it pretty well. I created a program that asks the user to input arrays. Now, I need to calculate the average of the inputted arrays, and I need to place them in order from low to high. I have been struggling with doing these two parts for a while now and now decided that the book is not useful, I need some from some actual programmers. I attached my program.

My program printed here!

Code:
#include
<iostream>
using
namespace std;
int
main()

[Code].....

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C++ :: Calculate Average From Array Values

Jan 8, 2014

i wrote following code to calculate average of the values entered to the array.After displaying the output following error was displayed.

"Run-Time Check Failure #2 - Stack around the variable 'marks' was corrupted.

A buffer overrun has occurred in q 3 410005111.exe which has corrupted the program's internal state. Press Break to debug the program or Continue to terminate the program. "

//Average mark of student 1
cout<<"Avarage mark of the student 1 :"<<(marks[0][0]+marks[1][0]+marks[2][0]+marks[3][0]);
cout<<endl;

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