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  1. Prepare
  2. Data Structures
  3. Arrays
  4. 2D Array - DS
  5. Discussions

2D Array - DS

  • 10akhil_t
     + 1 comment

    I did in javascript here's the code and i think, -infinity would be more plausible to instead of -99999 for maxSum

    function hourglassSum(arr) {
    
    const row = arr.length
    const col = arr[0].length
    let maxSum = -99999
   
   for(let i=0; i<row-2; i++){
       for(let j = 0; j<col-2;j++){
           let tempSum = arr[i][j] + arr[i][j+1] + arr[i][j+2] + arr[i+1][j+1] +
           arr[i+2][j] + arr[i+2][j+1] + arr[i+2][j+2]
           
           if(tempSum > maxSum){
               maxSum = tempSum
           }
       }
   }    
       return maxSum
}