LITS - hard

This one is terribly hard,yet very nice to work with.Let me know your solving time.

Mochinyoro - medium

A nikoli type,and a cousin of nurikabe,mochinyoro is a very interesting puzzle.The constraint on black cells in particular,make it stand out.
Rules:Group the white cells into some rectangles,all connected to each other diagonally.No two orthogonally touching white cells can belong to different rectangles.Every rectangle contains at most one clue,which equals the area of the rectangle.Some rectangles may not contain a clue,which means the area can be any value.Black cells cannot form a rectangle.