Practical 7.3

Posted: January 23, 2012 in Lab 3

Problem Statement- Add last two: write a function to take in an array and return the sum of the last two elements in it.

#include<stdio.h>
int last2(int *, int);
int main()
{
int arr[20],n,i;
printf("NO. of elements?\n");
scanf("%d",&n);
for(i=0;i<n;i++)
scanf("%d",&arr[i]);
last2(&arr[0],n);
return 0;
}
int last2(int *arr,int n)
{
int i,sum=0;
for(i=n-1;i>(n-3);i--)
sum=sum+*(arr+i);
printf("Sum of last 2 elements is %d",sum);
return 0;
}
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