//-------------------------------------------------

//             Jordi Binefa i Martínez

//                dubtes@excite.com

//           http://members.juara.com/asi

//-------------------------------------------------



//Write the program ARRAY1.CPP, that will be used to 

//calculate the average temperature of n towns. First 

//of all, the program asks how many towns you want to 

//work with (n). Then it asks every value of the 

//temperatures (temp[i]=_ ) , been i a number between 

//0 and n-1. Finally the program calculates the average 

//temperature and displays it. Supose a maximum number 

//of 20 towns. 



//Fes el programa MATRIU1.CPP, que serveix per calcular 

//la temperatura mitja de n poblacions. Primer de

//tot el programa et demana quantes poblacions vols 

//entrar (n). Després et pregunta una per una (temp[i]=_)

//les temperatures, essent i un número que va des de 0 a 

//n-1. Finalment el programa calcula la temperatura

//mitja i la presenta per pantalla. Suposa que com a màxim

//poden haver-hi 20 poblacions.

#include <iostream.h>



#define MAX_TOWNS 20



int howManyTowns(int max){

	int num;



	do{

		cout << "\n\nHow many towns ( max : "

			<< max << " )? : ";

		cin >> num;

	}while( (num < 1) || (num > max) );

	return num;

}



void entryTemp(float *t, int pobls){

	int i;



	for(i = 0 ; i < pobls ; i++){

		cout << "\n Temperature of the town["

			<< i << "] = ";

		cin >> t[i];

	}

}



float doAverage(float *tem, int pobls){

	int i;

	float mitjana = 0.0;



	for(i = 0 ; i < pobls ; i++)

		mitjana += tem[i];



	return(mitjana/(float)pobls); // This is a type conversion

}



void main(){

	float temperature[MAX_TOWNS];

	int towns;



	towns = howManyTowns( MAX_TOWNS );

	entryTemp( temperature , towns );

	cout << "\n\nThe average temperature of all the towns is "

		<< doAverage( temperature , towns)

		<< " degrees.\n\n";

}