get_max_value.ts

function get_max_value(
  k: number,
  n: number,
  weights: number[],
  values: number[],
): number {
  let max_value = 0

  const ratios = {} as { [i: number]: number }
  for (let i = 0; i < n; i++) {
    ratios[i] = values[i] / weights[i]
  }

  let total_weight = 0

  const ordered = Object.entries(ratios).sort((a, b) => b[1] - a[1])
  ordered.forEach(([idx, value]) => {
    if (total_weight + weights[idx] <= k) {
      max_value += values[idx]
      total_weight += weights[idx]
    }
  })

  return max_value
}

get_max_value(10, 6, [5, 7, 6, 1, 2, 3], [1, 3, 2, 2, 3, 4])

As Javascript:

function get_max_value(
  k,
  n,
  weights,
  values,
) {
  let max_value = 0

  const ratios = {}
  for (let i = 0; i < n; i++) {
    ratios[i] = values[i] / weights[i]
  }

  let total_weight = 0

  const ordered = Object.entries(ratios).sort((a, b) => b[1] - a[1])
  ordered.forEach(([idx, value]) => {
    if (total_weight + weights[idx] <= k) {
      max_value += values[idx]
      total_weight += weights[idx]
    }
  })

  return max_value
}