Whether we win or fail challenges will help us to learn.

Question

If we try to face challenges it will help us to learn from mistakes.

Answer 1

since most of the challenges have repeated questions so it is making only us to learn or mug up correct answers for future challenges.

Answer 2

Because most of sololearn is filling in blanks, the content will become more memorized then learned if your not practicing how to write your own codes from scratch