Submission #391235

#	Time	Username	Problem	Language	Result	Execution time	Memory
391235		sad	Lutrija (COCI19_lutrija)	C++14	0 / 70	1 ms	300 KiB

lutrija

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pb push_back
using namespace std;
int go (int x)
{
    for(int i=2;i*i<=x;i++)
    {
        if((x%i)==0)return 0;
    }
    return 1;
}
int main()
{
    ll l,r;cin>>l>>r;
    if(go(abs(r-l)))
    {
        cout<<2<<endl<<l<<" "<<r;return 0;
    }
    if(r-2>1&&go(abs(r-2-l)))
    {
        cout<<3<<endl<<l<<" "<<r-2<<" "<<r;return 0;
    }
    if(l-2>1&&go(abs(l-2-r)))
    {
        cout<<3<<endl<<l<<" "<<l-2<<" "<<r;return 0;
    }

    if(go(abs(r+2-l)))
    {
        cout<<3<<endl<<l<<" "<<r+2<<" "<<r;return 0;
    }
    if(go(abs(l+2-r)))
    {
        cout<<3<<endl<<l<<" "<<l+2<<" "<<r;return 0;
    }
    cout<<-1;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 7
• Subtask 3: 0 / 7
• Subtask 4: 0 / 7
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• Subtask 10: 0 / 7