Pentomino Fences (505)

Draw a single continuous loop along the given lines. A clue in a cell indicates how many edges of that cell are used by the loop. The loop cannot touch or cross itself. Divide the cells inside the loop into identical pentominoes. All the cells inside the loop must be a part of exactly one pentomino. The pentominoes may be rotated and reflected, but they cannot overlap.

Reference: WPC 2016 (65)