Ashwani Blog

c code to replace with multiplication

July ,7th ,2022

write a c code to replace with multiplication in array.

WAP to replace every dynamic array element by multiplication of previous and next of an n element.

Code

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void display(int *arr, int n)
{
    for (int i = 0; i < n; i++)
    {
        printf("%d ", arr[i]);
    }
    printf("\n");
}

int main()
{
    int n;
    printf("enter the array size\n");
    scanf("%d", &n);
    
    int *arr = (int *)malloc(n * sizeof(int));
    int *mul = (int *)malloc(n * sizeof(int));
    printf("enter the elements\n");
    for (int i = 0; i < n; i++)
    {
        scanf("%d", &arr[i]);
    }
    display(arr,n);
    mul[0]=arr[0];
    mul[n-1]=arr[n-1];
    for (int i = 1 ; i < n-1; i++)
    {
        mul[i]= arr[i-1]*arr[i+1];
    }
    for (int i = 0; i < n; i++)
    {
        arr[i]=mul[i];
    }
    display(arr,n);
    return 0;
}