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day4.go
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day4.go
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package main
import (
"bufio"
"fmt"
"os"
"reflect"
"sort"
"strings"
)
func check(e error) {
if e != nil {
panic(e)
}
}
func main() {
// Open File
f, err := os.Open(os.Args[1])
check(err)
defer f.Close()
// Parse file
data := make([][]string, 0)
s := bufio.NewScanner(f)
for s.Scan() {
row := strings.Fields(s.Text())
data = append(data, row)
}
part1(data)
part2(data)
}
func part1(data [][]string) {
var numValid = 0
for _, row := range data {
var valid = true
used := make(map[string]bool)
for _, word := range row {
if !used[word] {
used[word] = true
} else {
valid = false
}
}
if valid {
numValid++
}
}
fmt.Println(numValid)
}
func part2(data [][]string) {
var numValid = 0
for _, row := range data {
var valid = true
used := make(map[string]bool)
for _, word := range row {
for k := range used {
keySplit := strings.Split(k, "")
sort.Strings(keySplit)
wordSplit := strings.Split(word, "")
sort.Strings(wordSplit)
if reflect.DeepEqual(keySplit, wordSplit) {
valid = false
break
}
}
if valid {
used[word] = true
} else {
break
}
}
if valid {
numValid++
}
}
fmt.Println(numValid)
}