Write a program to enter the numbers till the user wants and at the end it should display the count of positive and negative and zeros entered?

Answer 1

#include <iostream>

#include <cstdlib>

using namespace std;

int main()

{

int count =0;

int sum = 0;

int positivecount = 0;

int negativecount = 0;

double average;

cout <<"Enter any integer or enter 0 to exit ::";

cin >> count;

while(count != 0)

{

sum += count;

average = sum / static_cast<double>(count);

count++;

if(count < 0)

{

negativecount++;

}

if (count > 0)

{

positivecount++;

}

cout <<"Enter any integer or enter 0 to exit ::";

cin >> count;

}

cout <<"the average of the numbers is " << average <<"\n";

cout <<"There are " << negativecount <<" negative numbers\n";

cout <<"There are " << positivecount<<" positive numbers\n";

system("pause");

return 0;

}

by rijaalu

Answer 2

//to count no. of +ve,-ve and 0s
#include
main()
{
int a[100],p=0,n=0,z=0,m,i;
printf("enter the nth no:\n");
scanf("%d",&m);
for(i=1;i<=m;i++)
{
printf("enter %d\n",i);
scanf("%d",&a[i]);
}
for(i=1;i<=m;i++)
{
if(a[i]==0)
z++;
else if(a[i]>0)
p++;
else
n++;
}
printf("positive=%d \n Negative= %d \n Zeroes= %d \n",p,n,z);

}

Answer 3

So, I'm guessing you need to assume that you need to assign enough space in the array so that you can have a logical number of whatever you are storing. Use common since on this one; you wont need to allocate a 2000 index array when asking how many numbers need to be read in. So you can just use the assigned array spaces and forget about the rest. Here is an example that read in the data and does a little something different but you can change the display scores method to do what you need. Hope this helps!

import java.util.Scanner;

public class Exercise06_04

{

public static void main(String args[]) {

Scanner input = new Scanner(System.in);

double[] givenScores = new double[10];

double sum = 0;

int count = 0;

while (count <= 10) {

System.out.print("Enter a new score: ");

double givenScore = input.nextDouble();

if (givenScore <= 0){

break;

}

else{

givenScores[count] = givenScore;

sum += givenScores[count];

count++;

}

}

double average = sum/count;

displayScores(givenScores, average, count);

}

public static void displayScores(double[] givenScores, double average, int count) {

int aboveCount = 0, belowCount = 0;

for (int i = 0; i < count; i++) {

if (givenScores[i] >= average)

aboveCount++;

else

belowCount++;

}

System.out.println("Average is " + average);

System.out.println("Number of scores above or equal to the average " + aboveCount);

System.out.println("Number of scores below the average " + belowCount);

}

}