結果
| 問題 |
No.326 あみだますたー
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-12-19 00:33:32 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 290 ms / 2,000 ms |
| コード長 | 2,854 bytes |
| コンパイル時間 | 3,975 ms |
| コンパイル使用メモリ | 79,100 KB |
| 実行使用メモリ | 51,580 KB |
| 最終ジャッジ日時 | 2024-11-07 23:17:33 |
| 合計ジャッジ時間 | 10,755 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 26 |
ソースコード
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
public class Main_yukicoder326 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
Printer pr = new Printer(System.out);
int n = sc.nextInt();
int k = sc.nextInt();
int[] x = new int[k];
int[] y = new int[k];
for (int i = 0; i < k; i++) {
x[i] = sc.nextInt();
y[i] = sc.nextInt();
}
int[] a = new int[n];
for (int i = 0; i < n; i++) {
int tmp = sc.nextInt();
a[tmp - 1] = i + 1;
}
int[] s = new int[n];
for (int i = 0; i < n; i++) {
s[i] = i + 1;
}
for (int i = 0; i < k; i++) {
int tmp = s[x[i] - 1];
s[x[i] - 1] = s[y[i] - 1];
s[y[i] - 1] = tmp;
}
List<Integer> xx = new ArrayList<Integer>();
List<Integer> yy = new ArrayList<Integer>();
for (int i = 0; i < n; i++) {
if (s[i] != a[i]) {
int j;
for (j = i + 1; j < n; j++) {
if (s[j] == a[i]) {
break;
}
}
int tmpj = j;
while (tmpj - i >= 1) {
int tmp = s[tmpj];
s[tmpj] = s[tmpj - 1];
s[tmpj - 1] = tmp;
xx.add(tmpj);
yy.add(tmpj + 1);
tmpj--;
}
}
}
pr.println(xx.size());
for (int i = 0; i < xx.size(); i++) {
pr.printf("%d %d\n", xx.get(i), yy.get(i));
}
pr.close();
sc.close();
}
@SuppressWarnings("unused")
private static class Scanner {
BufferedReader br;
Iterator<String> it;
Scanner (InputStream in) {
br = new BufferedReader(new InputStreamReader(in));
}
String next() throws RuntimeException {
try {
if (it == null || !it.hasNext()) {
it = Arrays.asList(br.readLine().split(" ")).iterator();
}
return it.next();
} catch (IOException e) {
throw new IllegalStateException();
}
}
int nextInt() throws RuntimeException {
return Integer.parseInt(next());
}
long nextLong() throws RuntimeException {
return Long.parseLong(next());
}
float nextFloat() throws RuntimeException {
return Float.parseFloat(next());
}
double nextDouble() throws RuntimeException {
return Double.parseDouble(next());
}
void close() {
try {
br.close();
} catch (IOException e) {
// throw new IllegalStateException();
}
}
}
private static class Printer extends PrintWriter {
Printer(PrintStream out) {
super(out);
}
}
}