Function reshape

problem.py:33–38

(l: list[Any], n: int = 1)

def reshape(l: list[Any], n: int = 1) -> list[list[Any]]:
  assert len(l) % n == 0
  columns = [[] for i in range(n)]
  for i, x in enumerate(l):
    columns[i % n].append(x)
  return zip(*columns)


def isint(x: str) -> bool: