Submission #660763

#	Time	Username	Problem	Language	Result	Execution time	Memory
660763		Koful123	Lutrija (COCI19_lutrija)	C++17	0 / 70	1 ms	212 KiB

lutrija

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

bool prime(int x){
	for(int i = 2; i * i <= x; i++){
		if(x % i == 0) return false;
	}
	return true;
}

void solve(){

	int a,b;
	cin >> a >> b;

	if(prime(abs(a-b))){
		cout << "2\n" << a << ' ' << b << endl;
		return;
	}

	if(a == 2 && b == 5){
		cout << "3\n" << "2 3 5" << endl;
		return;
	}

	if(a == 5 && b == 2){
		cout << "3\n" << "5 3 2" << endl;
		return;
	}

	if(a == 3 && b == 7){
		cout << "3\n" << "3 5 7" << endl;
		return;		
	}

	if(a == 7 && b == 3){
		cout << "3\n" << "7 5 3" << endl;
		return;				
	}

	if(a == 2){
		if(prime(b + 2)){
			cout << "3\n" << a << ' ' << b + 2 << ' ' << b << endl;
		}
		else cout << -1 << endl;
	}
	else if(b == 2){
		if(prime(a + 2)){
			cout << "3\n" << a << ' ' << a + 2 << ' ' << b << endl;
		}
		else cout << -1 << endl;
	}
	else cout << -1 << endl;
}
 
signed main(){	
 		
	ios::sync_with_stdio(0);
	cin.tie(0);
 
	int t = 1;
//	cin >> t;
 
	while(t--)
		solve();
 
	return 0;
}

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