C Program to get the product of array elements

geekycodescoSeptember 2, 2021September 2, 20210 Comments

We’ve been given an array A[N] of N numbers of element. We need to find the product of it’s element.

Like we have an array arr[9] of 9 elements so its product will be like

Product=8,977,500,000,000

Example

Input: arr[] = { 10, 20, 3, 4, 8 }
Output: 19200
Explanation: 10 x 20 x 3 x 4 x 8 = 19200
Input: arr[] = { 1, 2, 3, 4, 3, 2, 1 }
Output: 144

Steps for solving this problem

Take an input for the size of array
Take an array as input
Iterate the array and multiply each element of the array
Print the result

Algorithm

Start
In function int prod_mat(int arr[], int n)
Step 1-> Declare and initialize result = 1
Step 2-> Loop for i = 0 and i < n and i++ result = result * arr[i]; Step 3-> Return result
int main()
Step 1-> Declare an array arr[]step 2-> Declare a variable for size of array
Step 3-> Print the result

Example

#include<stdio.h>
int main()
{
	int N;
	scanf("%d",&N);
	long answer=1;
	int A[N];

		for(int i=0;i<N;i++)
		{
			scanf("%d",&A[i]);
		}
		for(int i=N-1;i>0;i--)
		{
			
			answer=(answer*A[i]);
			
		}
		printf("%ld",answer);
	
}