Submission #205707

#	Time	Username	Problem	Language	Result	Execution time	Memory
205707		mayhoubsaleh	Lutrija (COCI19_lutrija)	C++14	14 / 70	182 ms	376 KiB

lutrija

#include <bits/stdc++.h>
#define pb push_back
#define ll long long
#define mid (l+r)/2
#define left 2*i+1
#define righ 2*i+2

using namespace std;
ll a,b;

bool check(ll x){
    for(ll i=2;i*i<=x;i++){
        if(x%i)continue;
        return 0;
    }
    return 1;
}
int main()
{
    cin>>a>>b;
    if(abs(a-b)==2){
        cout<<2<<endl;
        cout<<a<<' '<<b<<endl;
        return 0;
    }
    if(a==2){
        if(check(b-2)){
            cout<<2<<endl;
            cout<<a<<' '<<b<<endl;
            return 0;
        }
        if(check(b+2)){
            cout<<3<<endl;
            cout<<a<<' '<<b+2<<' '<<b<<endl;
            return 0;
        }
    }
    if(b==2){
        if(check(a-2)){
            cout<<2<<endl;
            cout<<a<<' '<<b<<endl;
            return 0;
        }
        if(check(a+2)){
            cout<<3<<endl;
            cout<<a<<' '<<a+2<<' '<<b<<endl;
            return 0;
        }
    }

    if(check(a-2)){
        if(check(b-2)){
            cout<<3<<endl;
            cout<<a<<' '<<2<<' '<<b<<endl;
            return 0;
        }
        if(check(b+2)){
            cout<<4<<endl;
            cout<<a<<' '<<2<<' '<<b+2<<' '<<b<<endl;
            return 0;
        }
    }
    if(check(a+2)){
        if(check(b-2)){
            cout<<4<<endl;
            cout<<a<<' '<<a+2<<' '<<2<<' '<<b<<endl;
        }
        if(check(b+2)){
            cout<<5<<endl;
            cout<<a<<' '<<a+2<<' '<<2<<' '<<b+2<<' '<<b<<endl;
        }
    }
    cout<<-1<<endl;
    return 0;
}

• Subtask 1: 0 / 7
• Subtask 2: 7 / 7
• Subtask 3: 0 / 7
• Subtask 4: 0 / 7
• Subtask 5: 0 / 7
• Subtask 6: 7 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 7
• Subtask 9: 0 / 7
• Subtask 10: 0 / 7