See program sumarray.cpp in the given code repository.This program includes two functions for calculating the sum of allintegers in an array of size n. Consider functionsum1. Examine the function a // Two recursive functions for computing the sum of an array of integers \#include using namespace std; int sum1 (const int a[], size_t \( n \) ); int sum2 (const int \( a[] \), size_t \( n \) ); int 1 answer