C++

Write a function, sum67(int a[], int n), that returns the sum of the numbers in the array, except ignore sections of numbers starting with a 6 and extending to the next 7 (every 6 will be followed by at least one 7). Return 0 for no numbers. (5 Points) sum67({1, 2, 2}, 3) 5 sum67({1, 2, 2, 6, 99, 99, 7}, 7) 5 sum67({1, 1, 6, 7, 2}, 5) 4