結果
| 問題 |
No.807 umg tours
|
| コンテスト | |
| ユーザー |
tenten
|
| 提出日時 | 2022-08-12 10:27:36 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 1,642 ms / 4,000 ms |
| コード長 | 2,882 bytes |
| コンパイル時間 | 2,359 ms |
| コンパイル使用メモリ | 80,184 KB |
| 実行使用メモリ | 124,344 KB |
| 最終ジャッジ日時 | 2024-09-22 14:06:30 |
| 合計ジャッジ時間 | 24,338 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| 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));
graph.get(b).add(new Path(a, c));
}
long[][] costs = new long[2][n];
for (long[] arr : costs) {
Arrays.fill(arr, Long.MAX_VALUE);
}
PriorityQueue<Path> queue = new PriorityQueue<>();
queue.add(new Path(0, 0, 0));
queue.add(new Path(0, 1, 0));
while (queue.size() > 0) {
Path p = queue.poll();
if (costs[p.times][p.idx] <= p.value) {
continue;
}
costs[p.times][p.idx] = p.value;
for (Path x : graph.get(p.idx)) {
queue.add(new Path(x.idx, p.times, p.value + x.value));
if (p.times == 0) {
queue.add(new Path(x.idx, 1, p.value));
}
}
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < n; i++) {
sb.append(costs[0][i] + costs[1][i]).append("\n");
}
System.out.print(sb);
}
static class Path implements Comparable<Path> {
int idx;
int times;
long value;
public Path(int idx, int times, long value) {
this.idx = idx;
this.times = times;
this.value = value;
}
public Path(int idx, long value) {
this(idx, 0, value);
}
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("");
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();
}
}
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