結果
| 問題 |
No.30 たこやき工場
|
| コンテスト | |
| ユーザー |
fujisu
|
| 提出日時 | 2015-02-13 23:44:18 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 109 ms / 5,000 ms |
| コード長 | 3,531 bytes |
| コンパイル時間 | 3,217 ms |
| コンパイル使用メモリ | 88,108 KB |
| 実行使用メモリ | 51,840 KB |
| 最終ジャッジ日時 | 2024-12-21 05:19:06 |
| 合計ジャッジ時間 | 4,830 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 17 |
ソースコード
import java.io.IOException;
import java.util.InputMismatchException;
import java.util.LinkedList;
import java.util.List;
import java.util.TreeSet;
public class Main {
int n;
List<Integer>[] e;
int[][] g;
List<Integer> topologicalSort(List<Integer>[] e) {
int n = e.length;
int[] inDegree = new int[n];
for (int i = 0; i < n; i++) {
for (Integer to : e[i]) {
inDegree[to]++;
}
}
List<Integer> l = new LinkedList<Integer>();
TreeSet<Integer> s = new TreeSet<Integer>();
for (int i = 0; i < n; i++) {
if (inDegree[i] == 0) {
s.add(i);
}
}
while (!s.isEmpty()) {
int from = s.first();
s.remove(from);
l.add(from);
for (Integer to : e[from]) {
inDegree[to]--;
if (inDegree[to] == 0) {
s.add(to);
}
}
}
if (l.size() == n) {
return l;
} else {
return null;
}
}
void run() {
MyScanner sc = new MyScanner();
n = sc.nextInt();
int m = sc.nextInt();
g = new int[n][n];
e = new LinkedList[n];
for (int i = 0; i < n; i++) {
e[i] = new LinkedList<Integer>();
}
for (int i = 0; i < m; i++) {
int u = sc.nextInt() - 1;
int c = sc.nextInt();
int v = sc.nextInt() - 1;
e[v].add(u);
g[v][u] = c;
}
List<Integer> perm = topologicalSort(e);
int[] ans = new int[n];
ans[n - 1] = 1;
for (int i = 0; i < n; i++) {
int k = perm.get(i);
for (Integer to : e[k]) {
ans[to] += ans[k] * g[k][to];
}
}
for (int i = 0; i < n - 1; i++) {
if (e[i].size() == 0) {
System.out.println(ans[i]);
} else {
System.out.println(0);
}
}
}
public static void main(String[] args) {
new Main().run();
}
public void mapDebug(int[][] a) {
System.out.println("--------map display---------");
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++) {
System.out.printf("%3d ", a[i][j]);
}
System.out.println();
}
System.out.println("----------------------------" + '\n');
}
class MyScanner {
int read() {
try {
return System.in.read();
} catch (IOException e) {
throw new InputMismatchException();
}
}
boolean isSpaceChar(int c) {
return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
}
boolean isEndline(int c) {
return c == '\n' || c == '\r' || c == -1;
}
int nextInt() {
return Integer.parseInt(next());
}
int[] nextIntArray(int n) {
int[] array = new int[n];
for (int i = 0; i < n; i++)
array[i] = nextInt();
return array;
}
long nextLong() {
return Long.parseLong(next());
}
long[] nextLongArray(int n) {
long[] array = new long[n];
for (int i = 0; i < n; i++)
array[i] = nextLong();
return array;
}
double nextDouble() {
return Double.parseDouble(next());
}
double[] nextDoubleArray(int n) {
double[] array = new double[n];
for (int i = 0; i < n; i++)
array[i] = nextDouble();
return array;
}
String next() {
int c = read();
while (isSpaceChar(c))
c = read();
StringBuilder res = new StringBuilder();
do {
res.appendCodePoint(c);
c = read();
} while (!isSpaceChar(c));
return res.toString();
}
String[] nextStringArray(int n) {
String[] array = new String[n];
for (int i = 0; i < n; i++)
array[i] = next();
return array;
}
String nextLine() {
int c = read();
while (isEndline(c))
c = read();
StringBuilder res = new StringBuilder();
do {
res.appendCodePoint(c);
c = read();
} while (!isEndline(c));
return res.toString();
}
}
}
fujisu