Puzzles with Numbers

Fresh piece of puzzle pie. Puzzles with Numbers.
Contains:

＊ Shikaku (also known as Rectangles) is a logic puzzle from Sudoku authors with simple rules and challenging solutions.

The rules are simple.
You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

＊ Dominosa

You have to find the location of all dominoes on the grid. A domino is a pair of numbers. You can have only one of each pair.