Array Element Adjacent Sum - c

Given an Array of length N, the program must print the sum of adjacent numbers of elements present in the array.

Input Format:

First line contains N.Second line contains N element values seperated by a space.

Output Format:

Adjacent sum of N elements seperated by a space.

Boundary Conditions:2 <= N <= 100 

Example Input/Output 1:

Input:

5

1 1 1 1 1

Output

1 2 2 2 1

Example Input/Output 2:

Input:

10

7 9 3 7 9 1 10 2 9 7

Output:

9 10 16 12 8 19 3 19 9 9

Example Input/Output 3:

Input:

2

1 2

Output:

2 1

Code:

#include<stdio.h>

#include <stdlib.h>

int main()

{

int n,i;

scanf("%d",&n);

int a[n];

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

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

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

    if(i==0) printf("%d ",a[i+1]);

    else if(i==n-1) printf("%d ",a[i-1]);

    else printf("%d ",a[i-1]+a[i+1]);

}

}