Submission #1173019

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173019		hewfhlwejfl	Lutrija (COCI19_lutrija)	C++20	70 / 70	52 ms	328 KiB

lutrija

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define pll pair<long long, long long>
#define ppl pair<pll, long long>
#define ll long long
#define se second
#define fi first
#define pb push_back
ll T,n,nq,a[1001009],m,p,cyc,cmp,k,b[1001009],bn,r,res,y,vis1[4000009],vis[4000009],x,ma[400009],l;
bool prime(ll num)
{
    if(num==1)return 0;
    for(ll i=2;i*i<=num;i++)
        if(num%i==0)return 0;
    return 1;
}

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    ll fl=0;
	cin>>l>>r;
	vector<ll>ve;
	if(abs(l-r)<=2)
    {
        cout<<2<<endl<<l<<" "<<r;
        return 0;
    }
	if(l>2)
    {
        if(prime(l-2))ve.pb(l);
        else if(prime(l+2))ve.pb(l),ve.pb(l+2);
        else fl=1;

    }
    ve.pb(2);
    if(r>2)
    {
        if(prime(r-2))ve.pb(r);
        else if(prime(r+2))ve.pb(r+2),ve.pb(r);
        else fl=1;
    }
    if(fl)cout<<-1;
    else
    {
        cout<<ve.size()<<endl;
        for(auto x:ve)cout<<x<<" ";
    }
    //for(int i=1;i<=n;i++)cout<<a[i]<<endl;
    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 7 / 7
• Subtask 3: 7 / 7
• Subtask 4: 7 / 7
• Subtask 5: 7 / 7
• Subtask 6: 7 / 7
• Subtask 7: 7 / 7
• Subtask 8: 7 / 7
• Subtask 9: 7 / 7
• Subtask 10: 7 / 7