結果
| 問題 |
No.953 席
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-04-08 02:41:23 |
| 言語 | Java (openjdk 23) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 4,758 bytes |
| コンパイル時間 | 2,738 ms |
| コンパイル使用メモリ | 83,920 KB |
| 実行使用メモリ | 55,272 KB |
| 最終ジャッジ日時 | 2024-07-08 14:09:03 |
| 合計ジャッジ時間 | 14,791 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | RE * 25 |
ソースコード
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Comparator;
import java.util.NoSuchElementException;
import java.util.PriorityQueue;
class Edge {
int src,dst,cst;
public Edge(int src_,int dst_,int cst_) {
src=src_;
dst=dst_;
cst=cst_;
}
}
public class Main {
public static void main(String[] args) {
new Main().run();
}
int dist(int id, int fst, int snd) {
if (Integer.compare(fst, snd)==Integer.compare(fst, id)) {
return 2*Math.abs(fst-id)-1;
} else {
return 2*Math.abs(fst-id);
}
}
int id(int dist, int fst, int snd) {
int sign=Integer.compare(fst, snd)*(1-dist%2*2);
return fst+(dist+1)/2*sign;
}
boolean disjoint(int id, boolean[] on) {
boolean ret=true;
for(int i=Math.max(0, id-1);i<=Math.min(on.length-1, id+1);++i) {
ret&=!on[i];
}
return ret;
}
void run() {
FastScanner sc=new FastScanner();
int N=sc.nextInt();
int fst=sc.nextInt()-1;
int snd=sc.nextInt()-1;
int Q=sc.nextInt();
int[] ans=new int[Q];
Arrays.fill(ans, -1);
PriorityQueue<Integer> disjoint=new PriorityQueue<>();
PriorityQueue<Integer> adjacent=new PriorityQueue<>();
for(int i=0;i<N;++i) {
disjoint.add(i);
}
int[][] in=new int[Q+1][2];
int[][] out=new int[Q+1][2];
for(int i=0;i<Q;++i) {
in[i][0]=sc.nextInt();
out[i][0]=in[i][0]+sc.nextInt();
in[i][1]=i;
out[i][1]=i;
}
int INF=Integer.MAX_VALUE/3;
in[Q][0]=out[Q][0]=INF;
in[Q][1]=out[Q][1]=-1;
Arrays.sort(in, Comparator.comparing(v->v[0]));
Arrays.sort(out, Comparator.comparing(v->v[0]));
boolean[] on=new boolean[N];
int u=0,v=0;
while(u!=Q || v!=Q) {
if(out[u][0]<=in[v][0]) { // out[u]を実行
int id=ans[out[u][1]];
on[id]=false;
if(disjoint(id, on)) disjoint.add(dist(id,fst,snd));
else adjacent.add(dist(id,fst,snd));
++u;
}else{ // in[v]を実行
while(!disjoint.isEmpty() && (!disjoint(id(disjoint.peek(),fst,snd), on) || on[id(disjoint.peek(),fst,snd)])) {
disjoint.poll();
}
if(disjoint.isEmpty()&&adjacent.isEmpty()) {
in[v][0]=out[u][0];
continue;
}
int dist=!disjoint.isEmpty()?disjoint.poll():adjacent.poll();
int id=id(dist,fst,snd);
if(on[id]) continue;
ans[in[v][1]]=id;
on[id]=true;
for(int i=Math.max(0, id-1);i<=Math.min(N-1, id+1);++i) {
if(!on[i] && !disjoint(i, on)) adjacent.add(dist(i, fst, snd));
}
++v;
}
}
PrintWriter pw=new PrintWriter(System.out);
for(int i=0;i<Q;++i) {
pw.println(ans[i]+1);
}
pw.close();
}
void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}
}
class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() { return Double.parseDouble(next());}
}