https://github.com/luizfelipelopes/diagonaldifference

Diagonal Difference (Problem resolved in Hacker Rank)
https://github.com/luizfelipelopes/diagonaldifference

algorithm algorithm-challenges algorithms algorithms-and-data-structures hackerrank hackerrank-solutions javascript

Last synced: 14 days ago
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Diagonal Difference (Problem resolved in Hacker Rank)

• Host: GitHub
• URL: https://github.com/luizfelipelopes/diagonaldifference
• Owner: luizfelipelopes
• Created: 2024-02-27T23:20:17.000Z (12 months ago)
• Default Branch: main
• Last Pushed: 2024-02-27T23:47:13.000Z (12 months ago)
• Last Synced: 2024-11-25T19:43:01.553Z (3 months ago)
• Topics: algorithm, algorithm-challenges, algorithms, algorithms-and-data-structures, hackerrank, hackerrank-solutions, javascript
• Language: CSS
• Homepage: https://stackblitz.com/edit/vitejs-vite-1jdcnn
• Size: 8.79 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Diagonal Difference

Given a square matrix, calculate the absolute difference between the sums of its diagonals.

For example, the square matrix  is shown below:

```

1 2 3

4 5 6

9 8 9  

```

The left-to-right diagonal = *1 + 5 + 9 = 15*. The right to left diagonal = 3 + 5 + 9 = 17. Their absolute difference is *|15 - 17| = 2*.

### Function description

Complete the ***diagonalDifference*** function in the editor below.

diagonalDifference takes the following parameter:

* int arr[n][m]: an array of integers

### Return

* int: the absolute diagonal difference

### Constraints

***-100 <= arr[i] <= 100***

### Output Format

Return the absolute difference between the sums of the matrix's two diagonals as a single integer.

### Sample Input

```

11 2  4

4  5  6

10 8 -12

```

### Sample Output

```

15

```

### Explanation

The primary diagonal is:

```

11

   5

     -12

```

Sum across the primary diagonal: *11 + 5 - 12 = 4*

The secondary diagonal is:

```

     4

   5

10

```

Sum across the secondary diagonal: *4 + 5 + 10 = 19*

Difference: *|4 - 19| = 15*

**Note:** |x| is the absolute value of x