Hello again! I saw a problem in HackerRank to sum
an array of elements. I have done this before in a couple of languages, but
never in Go
, so I was not sure exactly what to do. I coded the solution and it
is:
package main
import "fmt"
func main() {
var n uint32
fmt.Scanf("%d\n", &n)
sum := 0
current := 0
for n > 0 {
fmt.Scanf("%d", ¤t)
sum += current
n--
}
fmt.Printf("%d\n", sum)
}
Here I run the program and I see a correct solution:
$ ./simple_array_sum
# first input is the number of
# elements in the array: n
6
# second line has n elements
1 2 3 4 5 6
# output
21
Well, actually, there was no array stored in memory in my solution, so… this was not exactly an array sum when you just look at my code because I didn’t use an array. Nevertheless, the input was an array of numbers and I successfully summed its elements. I will have to check the syntax for arrays in Go at another time =). I opted for this solution because it is faster. It uses less memory and this matters a lot.
Thanks for reading! That’s all for this post!