Yes, for the Olympics the dimensions of the basketball court follow the International Basketball Federation (FIBA) rules. That court is 28 meters long and 15 meters wide. The NBA court, on the other hand, is 28.7 meters long and 15.2 meters wide.
The three-point line is slightly closer as well under FIBA rules as it ranges from 6.6 to 6.75 meters, versus the 6.7 to 7.2 meters under NBA rules.
In the 2012 summer Olympics from London, USA won the gold, beating Spain in the final game 107-100. Russia took home the bronze. For the 2016 games, both Kobe Bryant and Coach Mike Krzyzewski have said that the 2012 games were their last. LeBron James has not decided if he will play in 2016.