結果
問題 | No.160 最短経路のうち辞書順最小 |
ユーザー | threepipes_s |
提出日時 | 2015-03-02 00:05:36 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,128 bytes |
コンパイル時間 | 2,600 ms |
コンパイル使用メモリ | 92,344 KB |
実行使用メモリ | 149,544 KB |
最終ジャッジ日時 | 2024-06-24 00:45:48 |
合計ジャッジ時間 | 10,230 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 75 ms
50,852 KB |
testcase_01 | AC | 73 ms
50,928 KB |
testcase_02 | AC | 74 ms
50,920 KB |
testcase_03 | WA | - |
testcase_04 | AC | 201 ms
53,264 KB |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | TLE | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
ソースコード
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Comparator; import java.util.List; import java.util.PriorityQueue; import java.util.Queue; public class Main { public static int[][] cost; public static int n; public static int inf; public static boolean[][] check; public static void main(String[] args) throws NumberFormatException, IOException{ ContestScanner in = new ContestScanner(); n = in.nextInt(); int m = in.nextInt(); int s = in.nextInt(); int g = in.nextInt(); // Node[] node = new Node[n]; inf = 10000000; check = new boolean[n][n]; cost = new int[n][n]; // for(int i=0; i<n; i++){ // node[i] = new Node(i); // } for(int i=0; i<n; i++){ for(int j=0; j<n; j++){ if(i != j) cost[i][j] = inf; } } for(int i=0; i<m; i++){ int a = in.nextInt(); int b = in.nextInt(); int c = in.nextInt(); // node[a].createEdge(node[b]); // node[b].createEdge(node[a]); cost[a][b] = c; cost[b][a] = c; check[a][b] = true; check[b][a] = true; } // Queue<Node> qu = new PriorityQueue<Node>(); // node[s].sum = 0; // checked[s] = true; // qu.add(node[s]); // while(!qu.isEmpty()){ // Node nd = qu.poll(); // // } for(int i=0; i<n; i++){ for(int j=0; j<n; j++){ for(int k=0; k<n; k++){ if(cost[i][j] > cost[i][k]+cost[k][j]){ cost[i][j] = cost[i][k]+cost[k][j]; } } } } System.out.print(s+" "); dfs(s, s, g); System.out.println(); // for(int i=0; i<n; i++){ // for(int j=0; j<n; j++){ // System.out.print(cost[i][j]+" "); // } // System.out.println(); // } } public static void dfs(int s, int now, int g){ if(now == g){ return; } int min = inf; int minid = 0; for(int i=0; i<n; i++){ if(i == now) continue; if(!check[i][now]) continue; if(min > cost[now][i]+cost[i][g]){ minid = i; min = cost[now][i]+cost[i][g]; } } System.out.print(minid+" "); dfs(s, minid, g); } } class MyComp implements Comparator<int[]>{ public int compare(int[] a, int[] b) { return a[0] - b[0]; } } class Reverse implements Comparator<Integer>{ public int compare(Integer arg0, Integer arg1) { return arg1 - arg0; } } class Node implements Comparable<Node>{ int id; List<Node> edge = new ArrayList<Node>(); // List<Integer> cost = new ArrayList<Integer>(); int sum; public Node(int id){ this.id = id; sum = 100000000; } public void createEdge(Node node){ edge.add(node); // cost.add(c); } @Override public int compareTo(Node o) { // TODO 自動生成されたメソッド・スタブ return sum - o.sum; } } class ContestWriter{ private PrintWriter out; public ContestWriter(String filename) throws IOException{ out = new PrintWriter(new BufferedWriter(new FileWriter(filename))); } public ContestWriter() throws IOException{ out = new PrintWriter(System.out); } public void println(String str){ out.println(str); } public void print(String str){ out.print(str); } public void close(){ out.close(); } } class ContestScanner{ private BufferedReader reader; private String[] line; private int idx; public ContestScanner() throws FileNotFoundException{ reader = new BufferedReader(new InputStreamReader(System.in)); } public ContestScanner(String filename) throws FileNotFoundException{ reader = new BufferedReader(new InputStreamReader(new FileInputStream(filename))); } public String nextToken() throws IOException{ if(line == null || line.length <= idx){ line = reader.readLine().trim().split(" "); idx = 0; } return line[idx++]; } public long nextLong() throws IOException, NumberFormatException{ return Long.parseLong(nextToken()); } public int nextInt() throws NumberFormatException, IOException{ return (int)nextLong(); } public double nextDouble() throws NumberFormatException, IOException{ return Double.parseDouble(nextToken()); } }