Submission #205707

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
205707	2020-02-29 14:28:17	mayhoubsaleh	Lutrija (COCI19_lutrija)	C++14	14 / 70	182 ms	376 KiB

lutrija

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#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;
 
 
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