A happy postgame locker room was a rare sight early in the season for the Detroit Pistons, a struggling team that was playing as poorly as any club in the NBA. But those grim postgame blues have occurred infrequently of late for the surging Pistons, who have won five of seven games. Rodney Stuckey scored 35 points and Greg Monroe matched his career high with 32 for the Pistons, who used a huge third-quarter effort to pull away from the Sacramento Kings, in compiling a season-high points total in a 124-112 victory Wednesday night.