Submission #244257

#	Time	Username	Problem	Language	Result	Execution time	Memory
244257		erray	Lutrija (COCI19_lutrija)	C++14	7 / 70	5 ms	384 KiB

lutrija

#include<bits/stdc++.h>

using namespace std;

int main () {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	auto isPrime = [&](long long num) {
		if (num < 2) return false;
		for (long long i = 2; i * i <= num; ++i) if (num % i == 0) return false;
		return true;
	};
	long long a, b;
	cin >> a >> b;
	if (isPrime(abs(a - b))) cout << 2 << '\n' << a << ' ' << b;
	else if (isPrime(a - 2) && isPrime(b - 2)) cout << 3 << '\n' << a << " 2 " << b;
	else if (isPrime(a + b)) cout << 3 << '\n' << a << ' ' << a + b << ' ' << b;
	else if (a == 2 && b == 2) cout << "3\n2 5 2";
	else cout << -1;
}	

• Subtask 1: 0 / 7
• Subtask 2: 7 / 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