結果
| 問題 | 
                            No.1060 素敵な宝箱
                             | 
                    
| コンテスト | |
| ユーザー | 
                             tenten
                         | 
                    
| 提出日時 | 2023-06-08 08:42:39 | 
| 言語 | Java  (openjdk 23)  | 
                    
| 結果 | 
                             
                                AC
                                 
                             
                            
                         | 
                    
| 実行時間 | 187 ms / 2,000 ms | 
| コード長 | 3,131 bytes | 
| コンパイル時間 | 4,165 ms | 
| コンパイル使用メモリ | 83,888 KB | 
| 実行使用メモリ | 44,828 KB | 
| 最終ジャッジ日時 | 2024-12-30 15:22:55 | 
| 合計ジャッジ時間 | 7,940 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge3 / judge4 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 3 | 
| other | AC * 24 | 
ソースコード
import java.io.*;
import java.util.*;
import java.util.stream.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int m = sc.nextInt();
        Box[] boxes = new Box[n];
        int[] sums = new int[m];
        for (int i = 0; i < n; i++) {
            int[] values = new int[m];
            for (int j = 0; j < m; j++) {
                values[j] = sc.nextInt();
                sums[j] += values[j];
            }
            boxes[i] = new Box(values);
        }
        Box.values = sums;
        for (Box b : boxes) {
            b.calc();
        }
        Arrays.sort(boxes);
        long[] ev = new long[m];
        long[] od = new long[m];
        for (int i = 0; i < n; i++) {
            if (i % 2 == 0) {
                boxes[i].add(ev);
            } else {
                boxes[i].add(od);
            }
        }
        long ans = 0;
        for (int i = 0; i < m; i++) {
            ans -= ev[i] * ev[i] - od[i] * od[i];
        }
        System.out.println(ans);
    }
    
    static class Box implements Comparable<Box> {
        static int[] values;
        int[] counts;
        long score;
        
        public Box(int[] counts) {
            this.counts = counts;
        }
        
        public void calc() {
            for (int i = 0; i < counts.length; i++) {
                score += values[i] * counts[i];
            }
        }
        
        public int compareTo(Box another) {
            if (score == another.score) {
                return 0;
            } else if (score < another.score) {
                return -1;
            } else {
                return 1;
            }
        }
        
        public void add(long[] arr) {
            for (int i = 0; i < arr.length; i++) {
                arr[i] += counts[i];
            }
        }
    }
}
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}
            
            
            
        
            
tenten