Codeforces Round #508 (Div. 2).B. Non-Coprime Partition(思维+数学)

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/XxxxxM1/article/details/82493833

B. Non-Coprime Partition

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

Find out if it is possible to partition the first nn positive integers into two non-empty disjoint sets S1S1 and S2S2 such that:

gcd(sum(S1),sum(S2))>1gcd(sum(S1),sum(S2))>1

Here sum(S)sum(S) denotes the sum of all elements present in set SS and gcdgcd means thegreatest common divisor.

Every integer number from 11 to nn should be present in exactly one of S1S1 or S2S2.

Input

The only line of the input contains a single integer nn (1≤n≤450001≤n≤45000)

Output

If such partition doesn't exist, print "No" (quotes for clarity).

Otherwise, print "Yes" (quotes for clarity), followed by two lines, describing S1S1 and S2S2 respectively.

Each set description starts with the set size, followed by the elements of the set in any order. Each set must be non-empty.

If there are multiple possible partitions — print any of them.

Examples

input

Copy

1

output

Copy

No

input

Copy

3

output

Copy

Yes
1 2
2 1 3 

Note

In the first example, there is no way to partition a single number into two non-empty sets, hence the answer is "No".

In the second example, the sums of the sets are 22 and 44 respectively. The gcd(2,4)=2>1gcd(2,4)=2>1, hence that is one of the possible answers.

#include<bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    while(cin>>n)
    {
        if(n==1||n==2) cout<<"No"<<endl;
        else if(n%2==0)
        {
            cout<<"Yes"<<endl<<1<<' '<<n/2<<endl;
            cout<<n-1<<' ';
            for(int i=1;i<=n;i++){
                if(i==n/2) continue;
            else
                cout<<i<<' ';
            }
            cout<<endl;
        }else{
             cout<<"Yes"<<endl<<1<<' '<<n<<endl;
             cout<<n-1<<' ';
            for(int i=1;i<n;i++){
                cout<<i<<' ';
            }
            cout<<endl;
        }
    }
    return 0;
}

猜你喜欢

转载自blog.csdn.net/XxxxxM1/article/details/82493833
今日推荐