1. Given the following code: 1- int g (int x, int y) {
2 switch(x - y) {
3
case :
4
return x;
5 case 4:
y = y + 1;
7 break;
8
case 7
9
X = X 1;
10 case 9:
11 return x;
12 case 3:
13 y = x + 9
14 default:
15
return y - x;
16
17
return y
18 ?
What does g(3,0) evaluate to?
1. 0..65534 -> 32767
2. 0..32766 -> 16383
3. 0..16382 -> 8191
4. 0..8190 -> 4095
5. 0..4094 -> 2047
6. 2048..4094 -> 3071
7. 2048..3070 -> 2559
8. 2560..3070 -> 2815
9. 2816..3070 -> 2943
10. 2944..3070 -> 3007
11. 2944..3006 -> 2975
12. 2976..3006 -> 2991
13. 2992..3006 -> 2999
14. 3000..3006 -> 3003
15. 3000..3002 -> 3001
Если лень перебирать вручную, можно воспользоваться программой
var k,l,r,x,f:integer;
begin
f := 3001;
l := 0;
r := 65534;
x := (l + r) div 2;
k := 1;
while (x <> f) and (l < r) do
begin
writeln(k,' ',l,' ',r,' ',x);
k := k + 1;
if f < x then r := x - 1
else l := x + 1;
x := (l + r) div 2
end;
writeln(k,' ',l,' ',r,' ',x);
end.