Just share my solution. 5ms time, any faster one?

```
public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
if(noInterval(A,B,C,D,E,F,G,H)) return (C-A)*(D-B)+(G-E)*(H-F);
int x=Math.min(C,G)-Math.max(A,E);
int y=Math.min(D,H)-Math.max(B,F);
return (C-A)*(D-B)+(G-E)*(H-F)-x*y;
}
public boolean noInterval(int A, int B, int C, int D, int E, int F, int G, int H){
return F>D||G<A||H<B||E>C;
}
}
```