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.
class Finder:
def __init__(self):
self.current_range = range(1, 101)
def condition(self, user_select):
if user_select == '1':
return True
elif user_select == '2':
self.current_range = range(int(self.current_half + self.current_range.start), self.current_range.stop)
return False
elif user_select == '3':
self.current_range = range(self.current_range.start, int(self.current_half + self.current_range.start))
return False
@property
def current_half(self) -> int:
return int((self.current_range.stop - self.current_range.start) / 2)
finder = Finder()
while True:
user_select = input(f'Это {finder.current_half + finder.current_range.start}?\n')
result = finder.condition(user_select)
if result:
break
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.