const MAXN = 10

var dp: array[MAXN, int]

proc `[]=`[T; U: Ordinal](arr: var openArray[T]; slice: Slice[U] | seq[U];
    value: sink T) {.inline.} =
  for idx in slice:
    arr[idx] = value

when isMainModule:
  let n = 8

  dp[1..8] = -1  # initialize dp array
  echo dp