How do I program this problem?

Question

Write a program to read 10 integers from an input file, “num.txt”, and output the average, minimum, and maximum of those numbers to an output file “out.txt”. Also make sure to test for the condition ifthe count of numbers is less than 10, then your average should reflect only for that many numbers

Include “#include <climits> in your code and set min = INT_MAX”

Note that you need to run your program twice.

1.First have 12 numbers in num.txt but read only 10 numbers from the file.

2.Second time have 8 numbers in num1.txt and check average for 8 numbers instead of 10 numbers. You can name the text file with 8 numbers as num1.txt and its corresponding output file as out1.tx

Answer 1

using namespace std;

#include <iostream>

#include <stdio.h>

#include <limits.h>

typedef struct _TResult

{

int aNums[10];

int n;

int min;

int max;

long sum;

double meanAvg;

double midrange;

int range;

} * TResult;

void ShowResults(TResult results, bool arrayDump = false)

{

if (arrayDump)

{

for (int iLoop=0; iLoop<results->n; iLoop++) { cout << results->aNums[iLoop] << endl; }

}

cout <<"*****************************************" << endl;

cout << " N = " << results->n << endl;

cout << " total = " << results->sum << endl;

cout << " mean average = " << results->meanAvg << endl;

cout << " min = " << results->min << endl;

cout << " max = " << results->max << endl;

cout << " range = " << results->range << endl;

cout << " midrange = " << results->midrange << endl;

}

/**********************************************

reads the data from the file,

calculates the average, min, and max;

populates the result structure

returns # of stats read from file or -1 on failure

********************************************************/

int Go( char * filename, TResult results)

{

int N=-1;

int A[10];

int num;

int min = INT_MAX;

int max = INT_MIN;

long sum=0;

FILE * fptr = fopen(filename,"r");

if (fptr!=NULL)

{

bool switch_flag = false;

while (

(fscanf(fptr,"%d",&num) != EOF)

)

{

N++;

if (N>=10)

{

switch_flag=true;

break;

}

A[N]=num;

cout << " read int #" << num << " for N = " << N << endl;

sum += num;

if (num>max) { max=num; }

if (num<min) { min=num; }

} //while

if (!switch_flag) { N++; }

//mean average, min, max, etc calculated here... results structure populated

results->n = N;

memcpy(results->aNums,A,N*sizeof(int));

results->max = max;

results->min = min;

results->sum = sum;

results->meanAvg = sum*1.0f/N;

results->range = max-min;

results->midrange = (max+min)/2.0f;

ShowResults(results);

} //fptr

return(N);

} //Go

int main( int argc, char * argv[])

{

struct _TResult results;

if (argc!=2)

{

cout << " please specify the input file :> avg filename " << endl;

}

else

{

int N = Go(argv[1], &results);

}

}