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  1. Prepare
  2. Algorithms
  3. Warmup
  4. Diagonal Difference
  5. Discussions

Diagonal Difference

  • jonathan_m_whit1
     + 0 comments

    I altered a little. 

    function diagonalDifference(arr) {  
        let primDiag = 0
        let secDiag = 0
        let n = arr.length

        for (var i = 0, j = n - 1; i < n; i++, j--) {
                primDiag += arr[i][i]
                secDiag += arr[i][j]  
        }
        return Math.abs(primDiag - secDiag)

    }