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Submission #837447

# Submission time Handle Problem Language Result Execution time Memory
837447 2023-08-25T10:57:50 Z LinkedArray Lutrija (COCI19_lutrija) C++17
7 / 70
 140 ms 280 KB 
#include <bits/stdc++.h>
using namespace std;

bool isPrime(long long num){
    if(num == 1) return 0;

    for(long long d = 2; d * d <= num; d++){
        if(num % d == 0) return 0;
    }

    return 1;
}

int main() {
    long long a, b, AP2, AM2, BP2, BM2, nr;

    cin >> a >> b;
    
    AP2 = isPrime(a + 2);
    AM2 = isPrime(a - 2);

    BP2 = isPrime(b + 2);
    BM2 = isPrime(b - 2);

    if(a != 2 && !AP2 && !AM2) {
        cout << "-1";
    } else if(b != 2 && !BP2 && !BM2) {
        cout << "-1";
    } else {
        nr = 1 + AM2 + BM2 + 2 * (AP2 + BP2);

        cout << nr << '\n';

        cout << (AM2 ? to_string(a) + ' ' : (AP2 ? to_string(a) + ' ' + to_string(a + 2) + ' ' : ""))
             << "2"
             << (BM2 ? ' ' + to_string(b) + ' ' : (BP2 ? to_string(b + 2) + ' ' + to_string(b) : ""));
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #5
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #7
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 128 ms 212 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #8
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 126 ms 276 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #9
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 140 ms 280 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -

Subtask #10
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 102 ms 272 KB Unexpected end of file - int64 expected
2 Halted 0 ms 0 KB -