Array Element Adjacent Sum

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

C code:

#include<stdio.h>

#include <stdlib.h>

int main()

{

int n;

scanf("%d",&n);

int a[n];

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

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

printf("%d ",a[1]);

for(int i=1;i<n-1;i++)

printf("%d ",a[i-1]+a[i+1]);

printf("%d ",a[n-2]);

}