36 lines
581 B
Go
36 lines
581 B
Go
package main
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func Sum(numbers []int) int {
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sum := 0
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// example: for ... in equivalent, first var has index
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for _, number := range numbers {
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sum += number
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}
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return sum
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}
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func SumAll(numbersToSum ...[]int) []int {
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var sums []int
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for _, numbers := range numbersToSum {
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sums = append(sums, Sum(numbers))
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}
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return sums
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}
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func SumAllTails(numbersToSum ...[]int) []int {
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var sums []int
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for _, numbers := range numbersToSum {
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if len(numbers) == 0 {
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sums = append(sums, 0)
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} else {
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tail := numbers[1:]
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sums = append(sums, Sum(tail))
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}
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}
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return sums
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}
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