#490824 (Go) No.92 逃走経路

• 問題: No.92 逃走経路
• ユーザー: ccppjsrb
• 提出日時: 2020-06-02 15:59:28
• 言語: Go (1.23.4)
• 結果: AC
• 実行時間: 26 ms / 5,000 ms
• コード長: 2,285 bytes
• コンパイル時間: 14,170 ms
• コンパイル使用メモリ: 231,020 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-11-24 01:23:51
• 合計ジャッジ時間: 15,227 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

ファイルパターン	結果
sample	AC * 2
other	AC * 18

ソースコード

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package main
import (
    "bufio"
    "fmt"
    "math/big"
    "os"
    "strconv"
    "strings"
)
func getScanner(fp *os.File) *bufio.Scanner {
    scanner := bufio.NewScanner(fp)
    scanner.Split(bufio.ScanWords)
    scanner.Buffer(make([]byte, 1000005), 1000005)
    return scanner
}
func getNextString(scanner *bufio.Scanner) string {
    scanner.Scan()
    return scanner.Text()
}
func getNextInt(scanner *bufio.Scanner) int {
    i, _ := strconv.Atoi(getNextString(scanner))
    return i
}
func getNextInt64(scanner *bufio.Scanner) int64 {
    i, _ := strconv.ParseInt(getNextString(scanner), 10, 64)
    return i
}
func getNextUint64(scanner *bufio.Scanner) uint64 {
    i, _ := strconv.ParseUint(getNextString(scanner), 10, 64)
    return i
}
func getNextFloat64(scanner *bufio.Scanner) float64 {
    i, _ := strconv.ParseFloat(getNextString(scanner), 64)
    return i
}
func main() {
    fp := os.Stdin
    wfp := os.Stdout
    cnt := 0
    if os.Getenv("MASPY") == "ますピ" {
        fp, _ = os.Open(os.Getenv("BEET_THE_HARMONY_OF_PERFECT"))
        cnt = 1
    }
    if os.Getenv("MASPYPY") == "ますピッピ" {
        wfp, _ = os.Create(os.Getenv("NGTKANA_IS_GENIUS10"))
    }
    scanner := getScanner(fp)
    writer := bufio.NewWriter(wfp)
    solve(scanner, writer)
    for i := 0; i < cnt; i++ {
        fmt.Fprintln(writer, "-----------------------------------")
        solve(scanner, writer)
    }
    writer.Flush()
}
func solve(scanner *bufio.Scanner, writer *bufio.Writer) {
    n := getNextInt(scanner)
    m := getNextInt(scanner)
    k := getNextInt(scanner)
    pp := map[int][]pair{}
    for i := 0; i < m; i++ {
        a := getNextInt(scanner) - 1
        b := getNextInt(scanner) - 1
        c := getNextInt(scanner)
        pp[c] = append(pp[c], newPair(a, b))
    }
    dp := make([]*big.Int, k+1)
    for i := 0; i < k+1; i++ {
        dp[i] = big.NewInt(0)
    }
    for i := 0; i < n; i++ {
        dp[0].SetBit(dp[0], i, 1)
    }
    for i := 0; i < k; i++ {
        d := getNextInt(scanner)
        for _, p := range pp[d] {
            if dp[i].Bit(p[0]) == 1 {
                dp[i+1].SetBit(dp[i+1], p[1], 1)
            }
            if dp[i].Bit(p[1]) == 1 {
                dp[i+1].SetBit(dp[i+1], p[0], 1)
            }
        }
    }
    ans := make([]string, 0)
    for i := 0; i < n; i++ {
        if dp[k].Bit(i) == 1 {
            ans = append(ans, fmt.Sprintf("%d", i+1))
        }
    }
    fmt.Fprintln(writer, len(ans))
    fmt.Fprintln(writer, strings.Join(ans, " "))
}
func newPair(a, b int) pair {
    return pair{a, b}
}
type pair [2]int
 
 
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