scc

 1int g;
 2
 3int
 4effect()
 5{
 6	g = 1;
 7	return 1;
 8}
 9
10int
11main()
12{
13    int x;
14    
15    g = 0;
16    x = 0;
17    if(x && effect())
18    	return 1;
19    if(g)
20    	return 2;
21    x = 1;
22    if(x && effect()) {
23    	if(g != 1)
24    		return 3;
25    } else {
26    	return 4;
27    }
28    g = 0;
29    x = 1;
30    if(x || effect()) {
31    	if(g)
32    		return 5;
33    } else {
34    	return 6;
35    }
36    x = 0;
37    if(x || effect()) {
38    	if(g != 1)
39    		return 7;
40    } else {
41    	return 8;
42    } 
43    return 0;
44}
45