AOC2022/helper/helper.go

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2022-12-03 03:40:46 +01:00
package helper
import (
"os"
"strings"
)
func check(e error) {
if e != nil {
panic(e)
}
}
func RemoveError[T any](value T, e error) T {
check(e)
return value
}
func ReadTextFile(filePath string) []string {
file, err := os.ReadFile(filePath)
check(err)
return strings.Split(string(file), "\r\n")
}
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func FindRepeatedItems[T int | int64](itemgroup1, itemgroup2 []T) []T {
elementsCompartment1 := map[T]bool{}
repeatedElemnts := map[T]bool{}
for _, item := range itemgroup1 {
elementsCompartment1[item] = true
}
for _, item := range itemgroup2 {
if elementsCompartment1[item] {
repeatedElemnts[item] = true
}
}
v := make([]T, 0, len(repeatedElemnts))
for key, _ := range repeatedElemnts {
v = append(v, key)
}
return v
}
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func FindMax[T int | int64](slice []T) (m T) {
for i, e := range slice {
if i == 0 || e > m {
m = e
}
}
return
}
func Sum[T int | int64](slice []T) (s T) {
for _, e := range slice {
s += e
}
return
}