Submission #739977

#	Time	Username	Problem	Language	Result	Execution time	Memory
739977		Toxtaq	Lutrija (COCI19_lutrija)	C++17	14 / 70	1 ms	304 KiB

lutrija

#include<bits/stdc++.h>
using namespace std;
bool IsPrime(long long n){
    if(n == 1)return 0;
    if(n == 2)return 1;
    if(n % 2 == 0)return 0;
    for(long long i = 3;i * i <= n;i += 2){
        if(n % i == 0)return 0;
    }
    return 1;
}
int main()
{
    long long a, b;
    cin >> a >> b;
    if(IsPrime(abs(a - b))){
        cout << "2 \n" << a << " " << b;
        return 0;
    }
    else{
        for(int i = 2;i <= 1000;++i){
            if(IsPrime(i) && IsPrime(abs(a - i)) && IsPrime(abs(b - i))){
                cout << "3 \n" << a << " " << i << " " << b;
                return 0;
            }
        }
    }
    cout << -1;
}

• Subtask 1: 7 / 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