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;
}
A=18
B=15
C=20
D=24
ответ D