結果
| 問題 |
No.807 umg tours
|
| コンテスト | |
| ユーザー |
tenten
|
| 提出日時 | 2022-10-20 15:47:21 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 1,920 ms / 4,000 ms |
| コード長 | 2,833 bytes |
| コンパイル時間 | 2,510 ms |
| コンパイル使用メモリ | 80,432 KB |
| 実行使用メモリ | 113,904 KB |
| 最終ジャッジ日時 | 2024-06-30 08:28:09 |
| 合計ジャッジ時間 | 26,111 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 26 |
ソースコード
import java.io.*;
import java.util.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
int m = sc.nextInt();
ArrayList<ArrayList<Path>> graph = new ArrayList<>();
for (int i = 0; i < n; i++) {
graph.add(new ArrayList<>());
}
for (int i = 0; i < m; i++) {
int a = sc.nextInt() - 1;
int b = sc.nextInt() - 1;
int c = sc.nextInt();
graph.get(a).add(new Path(b, c, 0));
graph.get(b).add(new Path(a, c, 0));
}
PriorityQueue<Path> queue = new PriorityQueue<>();
queue.add(new Path(0, 0, 1));
queue.add(new Path(0, 0, 0));
long[][] costs = new long[n][2];
for (long[] arr : costs) {
Arrays.fill(arr, Long.MAX_VALUE);
}
while (queue.size() > 0) {
Path p = queue.poll();
if (costs[p.idx][p.type] <= p.value) {
continue;
}
costs[p.idx][p.type] = p.value;
for (Path x : graph.get(p.idx)) {
queue.add(new Path(x.idx, p.value + x.value, p.type));
if (p.type == 0) {
queue.add(new Path(x.idx, p.value, 1));
}
}
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < n; i++) {
sb.append(costs[i][0] + costs[i][1]).append("\n");
}
System.out.print(sb);
}
static class Path implements Comparable<Path> {
int idx;
long value;
int type;
public Path(int idx, long value, int type) {
this.idx = idx;
this.value = value;
this.type = type;
}
public int compareTo(Path another) {
if (value == another.value) {
return 0;
} else if (value < another.value) {
return -1;
} else {
return 1;
}
}
}
}
class Scanner {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer("");
StringBuilder sb = new StringBuilder();
public Scanner() throws Exception {
}
public int nextInt() throws Exception {
return Integer.parseInt(next());
}
public long nextLong() throws Exception {
return Long.parseLong(next());
}
public double nextDouble() throws Exception {
return Double.parseDouble(next());
}
public String next() throws Exception {
while (!st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine());
}
return st.nextToken();
}
}
tenten