Sudoku: Normal Sudoku rules apply.
Skyscrapers: Digits in the grid represent the height of a buildings in their cells. Taller buildings obstruct the view of shorter buildings. Clues outside the grid show how many buildings are visible in the corresponding direction.
Numbered Rooms: Clues outside the grid indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit in the first cell of that row/column.
Each clue is both a Skyscrapers and a Numbered Rooms clue.
Solution code: Row 4
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