Wash the sweet potatoes thoroughly, peel them, and cut into small pieces.
Boil the sweet potatoes in boiling water until cooked, then let them cool.
Thinly slice cucumbers and carrots.
Finely chop the boiled eggs.
In a bowl, add the cooked sweet potatoes, cucumbers, carrots, and eggs.
Season with mayonnaise, salt, and pepper.
Mix all the ingredients well and serve on a plate.