結果
| 問題 |
No.1242 高橋君とすごろく
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-10-02 22:55:16 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 120 ms / 2,000 ms |
| コード長 | 3,598 bytes |
| コンパイル時間 | 4,544 ms |
| コンパイル使用メモリ | 87,512 KB |
| 実行使用メモリ | 49,984 KB |
| 最終ジャッジ日時 | 2024-07-20 02:49:43 |
| 合計ジャッジ時間 | 7,482 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 24 |
ソースコード
package contest201002;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.*;
public class A {
InputStream is;
PrintWriter out;
String INPUT = "";
void solve()
{
long n = nl();
int K = ni();
long[] a = new long[K];
for(int i = 0;i < K;i++){
a[i] = nl();
}
TreeSet<Long> pq = new TreeSet<>();
Set<Long> rem = new HashSet<>();
for(long v : a){
pq.add(v);
}
long steps = 0;
while(!pq.isEmpty()){
if(++steps >= 10000){
out.println("No");
return;
}
long v = pq.pollLast();
rem.add(v);
if(v == 1){
out.println("No");
return;
}
if(rem.contains(v+5) && v-1 >= 1){
pq.add(v-1);
}
if(rem.contains(v+3) && v-2 >= 1){
pq.add(v-2);
}
if(rem.contains(v+1) && v-1 >= 1){
pq.add(v-3);
}
}
out.println("Yes");
}
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");
// Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
// @Override
// public void run() {
// long s = System.currentTimeMillis();
// solve();
// out.flush();
// if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
// }
// };
// t.start();
// t.join();
}
public static void main(String[] args) throws Exception { new A().run(); }
private byte[] inbuf = new byte[1024];
public 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))){ // when nextLine, (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 int[] na(int n)
{
int[] a = new int[n];
for(int i = 0;i < n;i++)a[i] = ni();
return a;
}
private long[] nal(int n)
{
long[] a = new long[n];
for(int i = 0;i < n;i++)a[i] = nl();
return a;
}
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[][] nmi(int n, int m) {
int[][] map = new int[n][];
for(int i = 0;i < n;i++)map[i] = na(m);
return map;
}
private int ni() { return (int)nl(); }
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)); }
}