C++ code to find array from given array with conditions

Suppose we have an array A with n elements. There is another hidden array B of size n. The elements can be negative or positive. For each index i in range 1 to n, following operations will be performed −

• Set A[i] as 0 initially

• Then add B[i] to A[i], subtract B[i+1], then add B[i+2] and so on

We have to find the array B.

So, if the input is like A = [6, -4, 8, -2, 3], then the output will be [2, 4, 6, 1, 3]

Steps

To solve this, we will follow these steps −

for initialize i := 0, when i 
Example
Let us see the following implementation to get better understanding −
#include 
using namespace std;
void solve(vector A){
   for (int i = 0; i  A = { 6, -4, 8, -2, 3 };
   solve(A);
}
Input
{ 6, -4, 8, -2, 3 }
Output
2, 4, 6, 1, 3,