結果
問題 | No.1382 Travel in Mitaru city |
ユーザー |
![]() |
提出日時 | 2021-02-13 11:03:20 |
言語 | Go (1.23.4) |
結果 |
AC
|
実行時間 | 119 ms / 2,000 ms |
コード長 | 2,591 bytes |
コンパイル時間 | 11,964 ms |
コンパイル使用メモリ | 232,964 KB |
実行使用メモリ | 16,640 KB |
最終ジャッジ日時 | 2024-07-20 13:48:04 |
合計ジャッジ時間 | 18,107 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 68 |
ソースコード
package mainimport ("bufio""container/heap""fmt""math""os""sort""strconv")var sc = bufio.NewScanner(os.Stdin)var wr = bufio.NewWriter(os.Stdout)func out(x ...interface{}) {fmt.Fprintln(wr, x...)}func getI() int {sc.Scan()i, e := strconv.Atoi(sc.Text())if e != nil {panic(e)}return i}func getF() float64 {sc.Scan()i, e := strconv.ParseFloat(sc.Text(), 64)if e != nil {panic(e)}return i}func getInts(N int) []int {ret := make([]int, N)for i := 0; i < N; i++ {ret[i] = getI()}return ret}func getS() string {sc.Scan()return sc.Text()}// min, max, asub, absなど基本関数func max(a, b int) int {if a > b {return a}return b}func min(a, b int) int {if a < b {return a}return b}// min for n entryfunc nmin(a ...int) int {ret := a[0]for _, e := range a {ret = min(ret, e)}return ret}// max for n entryfunc nmax(a ...int) int {ret := a[0]for _, e := range a {ret = max(ret, e)}return ret}func asub(a, b int) int {if a > b {return a - b}return b - a}func abs(a int) int {if a >= 0 {return a}return -a}func lowerBound(a []int, x int) int {idx := sort.Search(len(a), func(i int) bool {return a[i] >= x})return idx}func upperBound(a []int, x int) int {idx := sort.Search(len(a), func(i int) bool {return a[i] > x})return idx}type pqi struct{ a, to int }type priorityQueue []pqifunc (pq priorityQueue) Len() int { return len(pq) }func (pq priorityQueue) Swap(i, j int) { pq[i], pq[j] = pq[j], pq[i] }func (pq priorityQueue) Less(i, j int) bool { return pq[i].a < pq[j].a }func (pq *priorityQueue) Push(x interface{}) { *pq = append(*pq, x.(pqi)) }func (pq *priorityQueue) Pop() interface{} {x := (*pq)[len(*pq)-1]*pq = (*pq)[0 : len(*pq)-1]return x}func main() {defer wr.Flush()sc.Split(bufio.ScanWords)sc.Buffer([]byte{}, math.MaxInt32)// this template is new version.// use getI(), getS(), getInts(), getF()N, M, S, _ := getI(), getI(), getI()-1, getI()-1p := getInts(N)node := make([][]int, N)for i := 0; i < M; i++ {a, b := getI()-1, getI()-1node[a] = append(node[a], b)node[b] = append(node[b], a)}used := make([]bool, N)pq := priorityQueue{}heap.Push(&pq, pqi{-p[S], S})used[S] = truex, y := p[S], 0for len(pq) != 0 {cur := pq[0]heap.Pop(&pq)pi := -cur.aif pi < x {x = piy++}for _, v := range node[cur.to] {if used[v] {continue}used[v] = trueheap.Push(&pq, pqi{-p[v], v})}}out(y)}