HIDE AND SEEK (Mini Puzzles Series #30)

One more puzzle from Oguz Atay Puzzle Contest (OAPC). This puzzle type appeared in the OAPC-7 championship. I created this puzzle way back year 2009 and published it at that time. Now I am re-publishing the Hide and Seek puzzle as the 30th puzzle in Mini Puzzles Series.

Rules of HIDE AND SEEK puzzle

The grid is divided into some regions. Locate one blackened cell and one circle in each region so that all unblackened cells are interconnected and no circle sees one another. Blackened cells cannot touch each other from the sides. The numbers outside the grid indicate the number of circles in the corresponding directions.