The long-term result of both the Great Leap Forward and the Cultural Revolution that can be considered accurate is:
The Great Leap Forward and the Cultural Revolution led to the end of Maoism in China.
While Maoism continued to have influence in the years following these events, the significant social, political, and economic upheavals they caused ultimately led to shifts in China's policies and direction that moved away from strict Maoist principles, especially after Mao's death in 1976.