#include <bits/stdc++.h>
using namespace std;
bool isPrime(long long x) {
if(x <= 1) return false;
for(int i = 2; 1LL * i * i <= x; i++) {
if(x % i == 0) {
return false;
}
}
return true;
}
void good(vector <long long> v) {
for(auto i : v) if(!isPrime(i)) return ;
for(int i = 1; i < v.size(); i++) if(!isPrime(abs(v[i] - v[i - 1]))) {
return ;
}
cout << v.size() << endl;
for(auto i : v) {
cout << i << " ";
}
cout << endl;
exit(0);
}
int main() {
long long A, B;
cin >> A >> B;
vector <long long> v ({A, B});
good(v);
for(auto i : {2LL, A + 2, A - 2, B + 2, B - 2}) {
auto u = v;
u.insert(u.begin() + 1, i);
good(u);
for(auto j : {2LL, A + 2, A - 2, B + 2, B - 2}) {
u.insert(u.begin() + 2, j);
good(u);
}
}
cout << -1 << endl;
return 0;
}
Compilation message
lutrija.cpp: In function 'void good(std::vector<long long int>)':
lutrija.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 1; i < v.size(); i++) if(!isPrime(abs(v[i] - v[i - 1]))) {
~~^~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
0 ms |
256 KB |
Output is correct |
3 |
Correct |
0 ms |
256 KB |
Output is correct |
4 |
Correct |
0 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
0 ms |
256 KB |
Output is correct |
3 |
Correct |
0 ms |
256 KB |
Output is correct |
4 |
Correct |
0 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2093 ms |
256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2054 ms |
256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2097 ms |
256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2098 ms |
256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |