A - Problem A
Time limit1000 ms
Memory limit65536 kB
One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and the scales showed w kilos. They rushed home, dying of thirst, and decided to divide the berry, however they faced a hard problem.
Pete and Billy are great fans of even numbers, that’s why they want to divide the watermelon in such a way that each of the two parts weighs even number of kilos, at the same time it is not obligatory that the parts are equal. The boys are extremely tired and want to start their meal as soon as possible, that’s why you should help them and find out, if they can divide the watermelon in the way they want. For sure, each of them should get a part of positive weight.
Input
The first (and the only) input line contains integer number w (1 ≤ w ≤ 100) — the weight of the watermelon bought by the boys.
Output
Print YES, if the boys can divide the watermelon into two parts, each of them weighing even number of kilos; and NO in the opposite case.
Examples
Input
8
Output
YES
Note
For example, the boys can divide the watermelon into two parts of 2 and 6 kilos respectively (another variant — two parts of 4 and 4 kilos).
问题链接：CodeForces - 4A
问题简述：
输入瓜的重量大小，问能否切成偶数重量的两份，重量不一定要想相等
问题分析：
只有输入的重量是偶数才有可能分成两个偶数相加，而偶数如果为2也是不行的，所以剔除2再分奇偶讨论就可以了
程序说明：
if语句判断奇偶（顺带剔除掉2）就可
AC通过的C语言程序如下：
#include <iostream>
using namespace std;
int main()
{
int weight;
cin >> weight;
if(weight%2!=0||(weight == 2))
{
cout << "NO";
}
if(weight%2==0&(weight!=2))
{
cout << "YES";
}
}