Объяснение:
<---------------------------1--------------------------->
#include <iostream>
using namespace std;
int main() {
int a;
cin>>a;
if ((a/100+(a%100)/10+a%10) % 2 == 0)
cout << "YES";
else
cout << "NO";
return 0;
}
<---------------------------2--------------------------->
#include <iostream>
using namespace std;
int main() {
int a, b, c;
cin >> a >> b >> c;
if (a == b || a == c || c == b)
cout << "YES";
else
cout << "NO";
return 0;
}
<---------------------------3--------------------------->
#include <iostream>
using namespace std;
int main()
{
int a, b;
char sing;
cin >> a >> sing >> b;
switch (sing)
{
case '*':
cout << a * b;
break;
case '/':
cout << a / b;
break;
case '+':
cout << a + b;
break;
case '-':
cout << a - b;
break;
default:
cout << "ERROR";
break;
}
return 0;
}
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.