Question

How to sum the corners of a matrix in TypeScript

Answer 1

function sumMatrixCorners(matrix: number[][]) {
  return matrix[0][0] + 
         matrix[0][matrix[0].length - 1] + 
         matrix[matrix.length - 1][0] + 
         matrix[matrix.length - 1][matrix[0].length - 1];
}
  
const matrix: number[][] = [
  [1, 2, 3, 4],
  [5, 6, 7, 8],
  [9, 3, 2, 0]
];
  
console.log(sumMatrixCorners(matrix));
  
  
      
      
/*
run:
      
14
      
*/

 

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