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C Program to find the sum and average of array Elements

Get array size n and n elements of array, then compute sum and average of the elements.

Sample Input 1:

5 5 7 9 3 1

Sample Output 1:

25 5.0

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C Program to find the sum and average of array Elements Flow Chart

Try your Solution

Strongly recommended to Solve it on your own, Don't directly go to the solution given below.

#include<stdio.h> int main() { //write your code here }

Program or Solution

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

int main(void)

{
	
	int *a,n,i,sum=0,avg;

	printf("Enter size of array:");
	scanf("%d",&n);

	a=malloc(sizeof(int)*n);

	printf("Enter %d Elements:",n);
	for(i=0;i<n;i++)

	{

		scanf("%d",&a[i]);

	}

	for(i=0;i<n;i++)
	
	{

		sum=sum+a[i];

	}

	avg=sum/n;
	printf("\nSum of array:%d \nAverage of Array:%d",sum,avg);	
	return 0;

}

Program Explanation

i is initialized to 0 and incremented by 1 at each iteration of both the for loops.

First for loop reads n input numbers from user and stores them in array a[] from location 0 to n-1

Second for loop adds all the n elements of array located from 0 to n-1

Finally compute average using avg=sum/n statement and prints average avg using printf statement.

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