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 | 2015-12-19 00:21:54 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 168 ms / 2,000 ms |
コード長 | 3,362 bytes |
コンパイル時間 | 2,998 ms |
コンパイル使用メモリ | 91,580 KB |
実行使用メモリ | 40,868 KB |
最終ジャッジ日時 | 2024-11-07 23:16:56 |
合計ジャッジ時間 | 6,686 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 |
---|---|
sample | AC * 2 |
other | AC * 26 |
ソースコード
import java.io.InputStream;import java.io.IOException;import java.io.PrintWriter;import java.util.ArrayList;import java.util.Arrays;import java.util.Comparator;import java.util.InputMismatchException;import java.util.NoSuchElementException;import java.math.BigInteger;public class Main{static PrintWriter out;static InputReader ir;static void solve(){int n=ir.nextInt();int k=ir.nextInt();int[] p=new int[n+1];for(int i=1;i<=n;i++) p[i]=i;for(int i=0;i<k;i++){int x=ir.nextInt();int y=ir.nextInt();int temp=p[x]; p[x]=p[y]; p[y]=temp;}ArrayList<int[]> ans=new ArrayList<int[]>();int[] a=ir.nextIntArray(n);int[] b=new int[n+1];for(int i=1;i<=n;i++) b[a[i-1]]=i;for(int i=1;i<=n;i++){int cur=1;while(p[cur]!=b[i]) cur++;for(int j=cur;j>i;j--){ans.add(new int[]{j-1,j});int temp=p[j]; p[j]=p[j-1]; p[j-1]=temp;}}out.println(ans.size());for(int[] st : ans) out.println(st[0]+" "+st[1]);}public static void main(String[] args) throws Exception{ir=new InputReader(System.in);out=new PrintWriter(System.out);solve();out.flush();}static class InputReader {private InputStream in;private byte[] buffer=new byte[1024];private int curbuf;private int lenbuf;public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;}public boolean hasNextByte() {if(curbuf>=lenbuf){curbuf= 0;try{lenbuf=in.read(buffer);}catch(IOException e) {throw new InputMismatchException();}if(lenbuf<=0) return false;}return true;}private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;}private boolean isSpaceChar(int c){return !(c>=33&&c<=126);}private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;}public boolean hasNext(){skip(); return hasNextByte();}public String next(){if(!hasNext()) throw new NoSuchElementException();StringBuilder sb=new StringBuilder();int b=readByte();while(!isSpaceChar(b)){sb.appendCodePoint(b);b=readByte();}return sb.toString();}public int nextInt() {if(!hasNext()) throw new NoSuchElementException();int c=readByte();while (isSpaceChar(c)) c=readByte();boolean minus=false;if (c=='-') {minus=true;c=readByte();}int res=0;do{if(c<'0'||c>'9') throw new InputMismatchException();res=res*10+c-'0';c=readByte();}while(!isSpaceChar(c));return (minus)?-res:res;}public long nextLong() {if(!hasNext()) throw new NoSuchElementException();int c=readByte();while (isSpaceChar(c)) c=readByte();boolean minus=false;if (c=='-') {minus=true;c=readByte();}long res = 0;do{if(c<'0'||c>'9') throw new InputMismatchException();res=res*10+c-'0';c=readByte();}while(!isSpaceChar(c));return (minus)?-res:res;}public double nextDouble(){return Double.parseDouble(next());}public BigInteger nextBigInteger(){return new BigInteger(next());}public int[] nextIntArray(int n){int[] a=new int[n];for(int i=0;i<n;i++) a[i]=nextInt();return a;}public long[] nextLongArray(int n){long[] a=new long[n];for(int i=0;i<n;i++) a[i]=nextLong();return a;}public char[][] nextCharMap(int n,int m){char[][] map=new char[n][m];for(int i=0;i<n;i++) map[i]=next().toCharArray();return map;}}}