Skyscrapers 5x5 #1 Medium (other names are Towers)
Here is a top view of the city block. In each cell there is a “skyscraper” with a height equal to the number in this cell. The numbers on the sides of the grid indicate the number of “skyscrapers” visible from the corresponding row or column when viewed from this number.
The task is to fill the grid with numbers so that in each row and in each column each number is used only once.