Write a C++ program that takes in a set of daily average temperatures (up to a maximum of 30).

Question

Write a program that takes in a set of daily average temperatures (up to a maximum of 30). Please include source code.

Do the following algorithm:

1. Ask the user for a temperature
2. If the user enters a -1 then stop asking for temperatures.
3. After the user is done entering temperatures:

a. Print out the temperatures entered.

b. print out the average, high and low temperatures.

To get average, use:

average = (sum of temps) divided by (count of temps)

to get max or min, either keep track of the max or min as the user enters a number or you can do this later when printing the temperatures. Do this by comparing the current max

value to the number and replacing it if it is bigger (smaller for min).

for example:

if(array[i] > max)

max = array[i];

you can initialize max to 0 and min to some large number (1000) for this exercise but in the future (during exams) you should set it to the first element in the list.

NOTE: Use floating point type for all numbers to prevent truncating the decimal part of the average.

Requirements:

You must enter temperatures into an array and use this array for calculating the average and print out the temperatures.

Use two loops, one for entering numbers and one for printing the temperatures.

--------------------------------

EXAMPLE OUTPUT #1

--------------------------------

Enter temperature (enter -1 to quit):

89

Enter temperature (enter -1 to quit):

78

Enter temperature (enter -1 to quit):

65

Enter temperature (enter -1 to quit):

77

Enter temperature (enter -1 to quit):

90

Enter temperature (enter -1 to quit):

79

Enter temperature (enter -1 to quit):

-1

The temperatures are: 89 78 65 77 90 79

The average temperature is: 79.6667

The maximum temperature is: 90

The minimum temperature is: 65

--------------------------------

EXAMPLE OUTPUT #2

--------------------------------

Enter temperature (enter -1 to quit):

20

Enter temperature (enter -1 to quit):

18

Enter temperature (enter -1 to quit):

45

Enter temperature (enter -1 to quit):

34

Enter temperature (enter -1 to quit):

56

Enter temperature (enter -1 to quit):

45

Enter temperature (enter -1 to quit):

37

Enter temperature (enter -1 to quit):

37

Enter temperature (enter -1 to quit):

-1

The temperatures are: 20 18 45 34 56 45 37 37

The average temperature is: 36.5

The maximum temperature is: 56

The minimum temperature is: 18

Answer 1

using namespace std;

#include <iostream>

#include <stdlib.h>

#include <string.h>

#include <limits.h>

#define MAX_NUM_TEMPS (30)

typedef struct _TTempDataRec

{

int tempArray[MAX_NUM_TEMPS];

int minTemp;

int maxTemp;

long tempSum;

double avgTemp;

int numTemps;

} * TTempDataRec;

#define TEMP_DATA_REC_SIZE (sizeof(struct _TTempDataRec))

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

Prompts and reads as input up to MAX_NUM_TEMPS temperature values, stores them in the array,

keeps track of the min, max, sum, and running total of the input temperatures.

populates the temp data rec structure with these statistics;

input concludes after MAX_NUM_TEMPS temeperatures have been input or the user

inputs -1, whichever happens first

then calculates the average of the temperatures

//ISSUE: What if the average temperature just so happens to be -1 ??? should be prompting YES/NO instead..

Negative temperatures are VALID!

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

int InputTemperatures(TTempDataRec tempDataRec)

{

//initializations

int curTemp = 1;

int iLoop=0;

memset(tempDataRec,0,TEMP_DATA_REC_SIZE);

tempDataRec->maxTemp = INT_MIN; //uses MAXINT and MININT in limits.h....

tempDataRec->minTemp = INT_MAX; // which are defined as 32768 and -32767

for (iLoop=0; iLoop<MAX_NUM_TEMPS; iLoop++)

{

//prompts for and then inputs the temperature

cout << " Temperature # " << (iLoop+1) << " : Please input the temperature or -1 to quit :>";

cin >> curTemp;

if (curTemp!=-1) // -1 was NOT input

{

tempDataRec->tempArray[iLoop] = curTemp; //stores in array

if (curTemp<tempDataRec->minTemp) { tempDataRec->minTemp = curTemp; } //updates min temp if less

if (curTemp>tempDataRec->maxTemp) { tempDataRec->maxTemp = curTemp; } //updates max temp if greater

tempDataRec-> tempSum += curTemp; //updates the running total

}

else

{

break; //user input -1, bails out

}

} //for loop

//# of temperatures read and the average of the temperatures

int iReturn = tempDataRec->numTemps = iLoop;

if (iReturn>0)

{

tempDataRec->avgTemp = tempDataRec->tempSum*1.0f / iReturn;

}

return(iReturn);

}

void OutputTemperatures(TTempDataRec tempDataRec, char * strMsg=NULL)

{

if (tempDataRec->numTemps>0)

{

if (strMsg!=NULL)

{

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

cout << strMsg << endl;

}

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

cout << "the " << tempDataRec->numTemps << " temperatures are : " << endl;

for (int iLoop=0; iLoop<tempDataRec->numTemps; iLoop++) { cout << tempDataRec->tempArray[iLoop] << " "; }

cout << endl << "----------------------------------------------------------------" << endl;

cout << " the total is " << tempDataRec->tempSum << endl;

cout << " the average is " << tempDataRec->avgTemp << endl;

cout << " the min temp is " << tempDataRec->minTemp << endl;

cout << " the max temp is " << tempDataRec->maxTemp << endl;

}

}

main()

{

struct _TTempDataRec tempDataRec;

InputTemperatures(&tempDataRec);

OutputTemperatures(&tempDataRec,(char*)"Temperature Statistics");

}