結果

問題 No.511 落ちゲー 〜手作業のぬくもり〜
ユーザー uwiuwi
提出日時 2017-04-28 22:58:46
言語 Java
(openjdk 23)
結果
AC  
実行時間 502 ms / 4,000 ms
コード長 4,112 bytes
コンパイル時間 3,483 ms
コンパイル使用メモリ 89,020 KB
実行使用メモリ 103,268 KB
最終ジャッジ日時 2024-11-24 12:39:50
合計ジャッジ時間 8,866 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 5
other AC * 32
権限があれば一括ダウンロードができます

ソースコード

diff # 

package contest170428;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class D {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni();
		int w = ni();
		long h = nl();
		int[][] bs = new int[n][];
		for(int i = 0;i < n;i++){
			bs[i] = new int[]{ni(), ni(), ni()-1};
		}
		int[] qs = new int[w];
		for(int i = 0;i < w;i++){
			qs[i] = i;
		}
		dfs(-1, n+1, qs, w, bs, h);
		out.println(balance > 0 ? "A" : balance < 0 ? "B" : "DRAW");
	}
	
	long balance = 0;
	
	void dfs(int l, int r, int[] qs, int w, int[][] bs, long h)
	{
		if(qs.length == 0)return;
		if(r-l == 1){
			if(l == bs.length)return;
			if(l % 2 == 0){
				balance += qs.length;
			}else{
				balance -= qs.length;
			}
			return;
		}
		
		int mid = (l+r)/2;
		long[] imos = new long[w+1];
		for(int i = 0;i < mid;i++){
			imos[bs[i][2]] += bs[i][1];
			imos[bs[i][2]+bs[i][0]] -= bs[i][1];
		}
		for(int i = 0;i < w;i++)imos[i+1] += imos[i];
//		tr(l, mid, r, imos);
		int[] lqs = new int[qs.length];
		int[] rqs = new int[qs.length];
		int pl = 0, pr = 0;
		for(int q : qs){
			if(imos[q] < h){
				rqs[pr++] = q;
			}else{
				lqs[pl++] = q;
			}
		}
		dfs(l, mid, Arrays.copyOf(lqs, pl), w, bs, h);
		dfs(mid, r, Arrays.copyOf(rqs, pr), w, bs, h);
	}
	
	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 D().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)); }
}
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