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Use varargs for GetPermutations

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This commit is contained in:
Chris Pickett
2022-06-12 23:48:14 -05:00
parent f03184d4c4
commit 0a249b85fc
2 changed files with 3 additions and 3 deletions
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4
days/07.go
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@ -28,7 +28,7 @@ func (d *Day07) Part1() string {
var highestVal int64 var highestVal int64
var highestSequence []int64 var highestSequence []int64
allSequences := utilities.GetPermutations([]int64{0, 1, 2, 3, 4}) allSequences := utilities.GetPermutations([]int64{0, 1, 2, 3, 4}...)
for _, sequence := range allSequences { for _, sequence := range allSequences {
if len(sequence) != len(d.amps) { if len(sequence) != len(d.amps) {
panic("input sequence does not match up to number of amplifiers") panic("input sequence does not match up to number of amplifiers")
@ -68,7 +68,7 @@ func (d *Day07) Part2() string {
var highestVal int64 var highestVal int64
var highestSequence []int64 var highestSequence []int64
allSequences := utilities.GetPermutations([]int64{5, 6, 7, 8, 9}) allSequences := utilities.GetPermutations([]int64{5, 6, 7, 8, 9}...)
for _, sequence := range allSequences { for _, sequence := range allSequences {
if len(sequence) != len(d.amps) { if len(sequence) != len(d.amps) {
panic("input sequence does not match up to number of amplifiers") panic("input sequence does not match up to number of amplifiers")

2
utilities/permutations.go
View File

@ -4,7 +4,7 @@ type Permutable interface {
~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 ~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64
} }
func GetPermutations[T Permutable](arr []T) [][]T { func GetPermutations[T Permutable](arr ...T) [][]T {
var helper func([]T, int) var helper func([]T, int)
res := [][]T{} res := [][]T{}