Positive and negative numbers in two separate arrays

Posted on Apr 24, 2020

C program to put positive and negative numbers in two separate arrays

Program

#include<stdio.h>
#include<conio.h>
#define MAX 50

void read_array(int a[MAX], int n)
{
    int i;
    for(i=0;i<n;i++)
    {
        printf("Element %d\t:",i+1);
        scanf("%d",&a[i]);
    }
}

void print_array(int a[MAX], int n)
{
    int i;
    for(i=0;i<n;i++)
    {
        printf("Element %d\t:%d\n",i+1,a[i]);
    }
}

void main()
{
    int arr[MAX], pos[MAX], neg[MAX];
    int n, i, n_pos, n_neg;

    printf("Enter the number of elements in the array\t:");
    scanf("%d",&n);

    printf("Enter the elements of the array\n");
    read_array(arr, n);

    n_pos = 0;
    n_neg = 0;
    for(i=0;i<n;i++)
    {
        if(arr[i]>=0)
        {
            pos[n_pos] = arr[i];
            n_pos++;
        }
        else
        {
            neg[n_neg] = arr[i];
            n_neg++;
        }
    }

    printf("\nPositive integers array\n");
    print_array(pos, n_pos);
    printf("\nNegative integers array\n");
    print_array(neg, n_neg);

    getch();
}

Output

Enter the number of elements in the array       :10
Enter the elements of the array
Element 1       :2
Element 2       :-4
Element 3       :0
Element 4       :56
Element 5       :-38
Element 6       :-32
Element 7       :-43
Element 8       :38
Element 9       :23
Element 10      :12

Positive integers array
Element 1       :2
Element 2       :0
Element 3       :56
Element 4       :38
Element 5       :23
Element 6       :12

Negative integers array
Element 1       :-4
Element 2       :-38
Element 3       :-32
Element 4       :-43