Count total number of elements divisible by a specific number in an array

Posted on Apr 24, 2020

C program to count total number of elements divisible by a specific number in an array.

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 main()
{
    int arr[MAX];
    int i, n, num, count;

    count=0;

    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);

    printf("Enter the number by which divisibility is to be checked\t:");
    scanf("%d", &num);

    for(i=0;i<n;i++)
    {
        if(arr[i]%num==0)
            count++;
    }

    printf("\nThere are total of %d numbers which are divisible by %d",count,num);

    getch();
}

Output

Enter the number of elements in the array       :8
Enter the elements of the array
Element 1       :12
Element 2       :25
Element 3       :56
Element 4       :45
Element 5       :32
Element 6       :58
Element 7       :47
Element 8       :89
Enter the number by which divisibility is to be checked :2

There are total of 4 numbers which are divisible by 2