結果
問題 | No.326 あみだますたー |
ユーザー |
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提出日時 | 2017-11-09 00:12:17 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 147 ms / 2,000 ms |
コード長 | 4,978 bytes |
コンパイル時間 | 2,517 ms |
コンパイル使用メモリ | 86,416 KB |
実行使用メモリ | 40,472 KB |
最終ジャッジ日時 | 2024-11-24 06:04:59 |
合計ジャッジ時間 | 6,581 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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.*;import java.util.*;import java.math.*;public class Main {InputStream is;PrintWriter out;String INPUT = "";long MOD = 1000_000_007;long inf = Long.MAX_VALUE;void solve(){int n = ni();int k = ni();int[] f = new int[n];for(int i = 0; i < n; i++){f[i] = i;}for(int i = 0; i < k; i++){int x = ni()-1;int y = ni()-1;int d = f[x];f[x] = f[y];f[y] = d;}int[] b = new int[n];for(int i = 0; i < n; i++){b[ni()-1] = i;}ArrayList<Integer> list = new ArrayList<>();for(int i = 0; i < n; i++){for(int j = 0; j < n; j++){if(f[j]==b[i]){for(int l = j; l > i; l--){int d = f[l];f[l] = f[l-1];f[l-1] = d;list.add(l);}break;}}}out.println(list.size());for(int i : list){out.println(i + " " + (i+1));}}private long pow(long a, long n, long MOD) {a %= MOD;if (a == 0) {return 0;}long loop = n;long ret = 1;long x = a;while (loop > 0) {if (loop % 2 == 1) {ret = ret * x % MOD;}x = x * x % MOD;loop /= 2;}return ret;}void run() throws Exception{is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());out = new PrintWriter(System.out);long s = System.currentTimeMillis();solve();out.flush();if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");}public static void main(String[] args) throws Exception { new Main().run(); }private byte[] inbuf = new byte[1024];private int lenbuf = 0, ptrbuf = 0;private int readByte(){if(lenbuf == -1)throw new InputMismatchException();if(ptrbuf >= lenbuf){ptrbuf = 0;try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }if(lenbuf <= 0)return -1;}return inbuf[ptrbuf++];}private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }private double nd() { return Double.parseDouble(ns()); }private char nc() { return (char)skip(); }private String ns(){int b = skip();StringBuilder sb = new StringBuilder();while(!(isSpaceChar(b) && b != ' ')){sb.appendCodePoint(b);b = readByte();}return sb.toString();}private char[] ns(int n){char[] buf = new char[n];int b = skip(), p = 0;while(p < n && !(isSpaceChar(b))){buf[p++] = (char)b;b = readByte();}return n == p ? buf : Arrays.copyOf(buf, p);}private char[][] nm(int n, int m){char[][] map = new char[n][];for(int i = 0;i < n;i++)map[i] = ns(m);return map;}private int[] na(int n){int[] a = new int[n];for(int i = 0;i < n;i++)a[i] = ni();return a;}private int ni(){int num = 0, b;boolean minus = false;while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));if(b == '-'){minus = true;b = readByte();}while(true){if(b >= '0' && b <= '9'){num = num * 10 + (b - '0');}else{return minus ? -num : num;}b = readByte();}}private long nl(){long num = 0;int b;boolean minus = false;while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));if(b == '-'){minus = true;b = readByte();}while(true){if(b >= '0' && b <= '9'){num = num * 10 + (b - '0');}else{return minus ? -num : num;}b = readByte();}}private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }static class ArrayUtils {public static void fill(double[][] array, double value) {for (double[] a : array) Arrays.fill(a, value);}public static void fill(double[][][] array, double value) {for (double[][] l : array) fill(l, value);}}}