Driver code
let arr = [ 1 , 2 , 3 , 4 ] ; let n = arr . length ; for ( var i = 0 ; i < dp . length ; i ++ ) { for ( var j = 0 ; j < dp . length ; j ++ ) { dp [ i ] [ j ] = - 1 ; } } document . write ( " " + MatrixChainOrder ( arr , n ) ) ;