83 lines
1.4 KiB
Go
83 lines
1.4 KiB
Go
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package main
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import (
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"fmt"
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"io"
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"log"
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)
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func main() {
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var input []string
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var readInp string
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for {
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_, err := fmt.Scan(&readInp)
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if err != nil {
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if err != io.EOF {
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log.Fatal(err)
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}
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break
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}
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input = append(input, readInp)
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}
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var numNice int
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for _, k := range input {
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if isNicePt2(k) {
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numNice++
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}
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}
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fmt.Printf("There are %d nice strings (out of %d total)\n", numNice, len(input))
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}
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func isNicePt1(s string) bool {
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var prev byte
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var numVowels int
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var hasDouble bool
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for i := range s {
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if s[i] == 'b' && prev == 'a' {
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return false
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} else if s[i] == 'd' && prev == 'c' {
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return false
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} else if s[i] == 'q' && prev == 'p' {
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return false
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} else if s[i] == 'y' && prev == 'x' {
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return false
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} else if s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' {
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numVowels++
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}
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if prev == s[i] {
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hasDouble = true
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}
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prev = s[i]
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}
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return (numVowels > 2 && hasDouble)
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}
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func isNicePt2(s string) bool {
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var splitRepeat bool
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var double bool
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for i := range s {
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if i > 0 {
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double = double || hasDouble(s[i-1], s[i], s[i+1:])
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}
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if i > 1 {
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splitRepeat = splitRepeat || (s[i-2] == s[i])
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}
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if double && splitRepeat {
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return true
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}
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}
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return false
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}
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func hasDouble(b1, b2 byte, s string) bool {
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var prev byte
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for i := range s {
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if prev == b1 && s[i] == b2 {
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return true
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}
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prev = s[i]
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}
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return false
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}
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