結果

問題 No.1060 素敵な宝箱
ユーザー uwiuwi
提出日時 2020-05-22 22:23:24
言語 Java21
(openjdk 21)
結果
AC  
実行時間 102 ms / 2,000 ms
コード長 3,726 bytes
コンパイル時間 4,296 ms
コンパイル使用メモリ 85,792 KB
実行使用メモリ 51,992 KB
最終ジャッジ日時 2024-04-15 17:21:17
合計ジャッジ時間 7,121 ms
ジャッジサーバーID
(参考情報)
judge2 / judge5
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 55 ms
50,028 KB
testcase_01 AC 55 ms
50,308 KB
testcase_02 AC 55 ms
50,096 KB
testcase_03 AC 55 ms
50,292 KB
testcase_04 AC 56 ms
50,296 KB
testcase_05 AC 55 ms
50,400 KB
testcase_06 AC 54 ms
50,152 KB
testcase_07 AC 57 ms
50,320 KB
testcase_08 AC 57 ms
50,420 KB
testcase_09 AC 58 ms
50,252 KB
testcase_10 AC 56 ms
50,136 KB
testcase_11 AC 58 ms
50,480 KB
testcase_12 AC 80 ms
50,696 KB
testcase_13 AC 79 ms
51,556 KB
testcase_14 AC 78 ms
51,696 KB
testcase_15 AC 96 ms
51,804 KB
testcase_16 AC 80 ms
51,512 KB
testcase_17 AC 82 ms
51,100 KB
testcase_18 AC 88 ms
51,584 KB
testcase_19 AC 85 ms
51,832 KB
testcase_20 AC 92 ms
51,992 KB
testcase_21 AC 92 ms
51,644 KB
testcase_22 AC 92 ms
51,580 KB
testcase_23 AC 77 ms
51,572 KB
testcase_24 AC 100 ms
51,748 KB
testcase_25 AC 102 ms
51,728 KB
testcase_26 AC 99 ms
51,772 KB
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 contest200522;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Comparator;
import java.util.InputMismatchException;

// 嘘解法
public class D {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni(), m = ni();
		int[][] co = new int[n][];
		for(int i = 0;i < n;i++){
			co[i] = na(m);
		}
		long[] all = new long[m];
		for(int i = 0;i < n;i++){
			for(int j = 0;j < m;j++){
				all[j] += co[i][j];
			}
		}
		
		Arrays.sort(co, new Comparator<int[]>() {
			public int compare(int[] a, int[] b) {
				long x = 0;
				for(int i = 0;i < m;i++){
					x += (a[i] - b[i]) * all[i];
				}
				return Long.signum(x);
			}
		});
		long ret = 0;
		for(int j = 0;j < m;j++){
			long v = 0;
			for(int i = 0;i < n;i+=2){
				v += co[i][j];
			}
			ret -= v*v;
			v = 0;
			for(int i = 0;i < n;i+=2){
				v += co[i+1][j];
			}
			ret += v*v;
		}
		out.println(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");
//		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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