Butun son N va N ta sondan iborat nums massivi berilgan. Massiv elementlarining yig'indisini toping.
func sumN(N int, nums []int) int {
// ...
}
Input: N=3, nums=[5, 10, 15]
Output: 30
Input: N=4, nums=[2, 4, 6, 8]
Output: 20
Input: N=5, nums=[1, 2, 3, 4, 5]
Output: 15