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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static int find(List<List<Integer>> matrix) {
  11.         int Sum1 = 0;
  12.         int Sum2 = 0;
  13.  
  14.         for (int i = 0; i < matrix.size(); i++) {
  15.             for (int j = 0; j < matrix.get(0).size(); j++) {
  16.  
  17.                 if (i == j) {
  18.                     Sum1 += matrix.get(i).get(j);
  19.                 }
  20.  
  21.  
  22.                 if (i + j == matrix.size() - 1) {
  23.                     Sum2 += matrix.get(i).get(j);
  24.                 }
  25.             }
  26.         }
  27.  
  28.  
  29.         int absoluteDiff = Math.abs(Sum1 - Sum2);
  30.  
  31.         return absoluteDiff;
  32.     }
  33.  
  34. 	public static void main (String[] args) throws java.lang.Exception
  35. 	{
  36. 	       Scanner sc = new Scanner(System.in);
  37.  
  38.  
  39.         int n = sc.nextInt();
  40.         List<List<Integer>> matrix = new ArrayList<>();
  41.         for (int i = 0; i < n; i++) {
  42.             List<Integer> row = new ArrayList<>();
  43.             for (int j = 0; j < n; j++) {
  44.                 row.add(sc.nextInt());
  45.             }
  46.             matrix.add(row);
  47.         }
  48.  
  49.  
  50.         int absoluteDiff = find(matrix);
  51.  
  52.  
  53.         System.out.println(absoluteDiff);
  54.  
  55.  
  56.         sc.close();
  57. 	}
  58. }
Success #stdin #stdout 0.13s 39892KB
comments (?)
stdin 
3
11 2 4
4 5 6
10 8 -12
stdout 
15
https://ideone.com/Nqy6dc
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
public

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